* Re: [syzbot] [fs?] WARNING in nsproxy_ns_active_put [not found] <20251107111638.19373-1-kartikey406@gmail.com> @ 2025-11-07 11:50 ` syzbot 0 siblings, 0 replies; 15+ messages in thread From: syzbot @ 2025-11-07 11:50 UTC (permalink / raw) To: kartikey406, linux-kernel, syzkaller-bugs Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING in alloc_pid ------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:288 at __ns_ref_active_get include/linux/ns_common.h:288 [inline], CPU#1: syz-executor/6382 WARNING: ./include/linux/ns_common.h:288 at alloc_pid+0xad6/0xc70 kernel/pid.c:285, CPU#1: syz-executor/6382 Modules linked in: CPU: 1 UID: 0 PID: 6382 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__ns_ref_active_get include/linux/ns_common.h:288 [inline] RIP: 0010:alloc_pid+0xad6/0xc70 kernel/pid.c:285 Code: cc e8 3e d8 34 00 be 02 00 00 00 eb 0a e8 32 d8 34 00 be 01 00 00 00 48 89 df e8 65 da 0c 03 e9 84 fa ff ff e8 1b d8 34 00 90 <0f> 0b 90 e9 2c fd ff ff e8 0d d8 34 00 90 0f 0b 90 e9 5b fd ff ff RSP: 0018:ffffc9000213f9d8 EFLAGS: 00010293 RAX: ffffffff818cfa95 RBX: ffff888074ae5998 RCX: ffff88802a181e80 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: ffff888024e7a701 R08: ffff888074ae599b R09: 1ffff1100e95cb33 R10: dffffc0000000000 R11: ffffed100e95cb34 R12: dffffc0000000000 R13: 1ffff110049cf511 R14: ffff888074ae5830 R15: dffffc0000000000 FS: 000055558ad86500(0000) GS:ffff888125b79000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f201af156c0 CR3: 0000000078776000 CR4: 00000000003526f0 Call Trace: <TASK> copy_process+0x18e7/0x3930 kernel/fork.c:2196 kernel_clone+0x21e/0x840 kernel/fork.c:2609 __do_sys_clone kernel/fork.c:2750 [inline] __se_sys_clone kernel/fork.c:2734 [inline] __x64_sys_clone+0x18b/0x1e0 kernel/fork.c:2734 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f201a185e13 Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007ffe79514908 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f201a185e13 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 000055558ad867d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000000927c0 R14: 00000000000271be R15: 00007ffe79514aa0 </TASK> Tested on: commit: 9c0826a5 Add linux-next specific files for 20251107 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=11f67012580000 kernel config: https://syzkaller.appspot.com/x/.config?x=4f8fcc6438a785e7 dashboard link: https://syzkaller.appspot.com/bug?extid=0b2e79f91ff6579bfa5b compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=1755ca92580000 ^ permalink raw reply [flat|nested] 15+ messages in thread
[parent not found: <20251107114335.22409-1-kartikey406@gmail.com>]
* Re: [syzbot] [fs?] WARNING in nsproxy_ns_active_put [not found] <20251107114335.22409-1-kartikey406@gmail.com> @ 2025-11-07 13:44 ` syzbot 0 siblings, 0 replies; 15+ messages in thread From: syzbot @ 2025-11-07 13:44 UTC (permalink / raw) To: kartikey406, linux-kernel, syzkaller-bugs Hello, syzbot tried to test the proposed patch but the build/boot failed: 26.481884][ T1] Loading compiled-in X.509 certificates [ 26.516950][ T1] Loaded X.509 cert 'Build time autogenerated kernel key: f5143acf1d690a3971428b7fa3c37300acff3a6e' [ 26.900243][ T1] zswap: loaded using pool 842 [ 26.908732][ T1] Demotion targets for Node 0: null [ 26.914058][ T1] Demotion targets for Node 1: null [ 26.919319][ T1] debug_vm_pgtable: [debug_vm_pgtable ]: Validating architecture page table helpers [ 29.792072][ T1] Key type .fscrypt registered [ 29.796868][ T1] Key type fscrypt-provisioning registered [ 29.806376][ T1] kAFS: Red Hat AFS client v0.1 registering. [ 29.835595][ T1] Btrfs loaded, assert=on, zoned=yes, fsverity=yes [ 29.843055][ T1] Key type big_key registered [ 29.847786][ T1] Key type encrypted registered [ 29.852651][ T1] AppArmor: AppArmor sha256 policy hashing enabled [ 29.859262][ T1] ima: No TPM chip found, activating TPM-bypass! [ 29.865703][ T1] Loading compiled-in module X.509 certificates [ 29.898151][ T1] Loaded X.509 cert 'Build time autogenerated kernel key: f5143acf1d690a3971428b7fa3c37300acff3a6e' [ 29.909093][ T1] ima: Allocated hash algorithm: sha256 [ 29.915206][ T1] ima: No architecture policies found [ 29.921406][ T1] evm: Initialising EVM extended attributes: [ 29.927394][ T1] evm: security.selinux (disabled) [ 29.932519][ T1] evm: security.SMACK64 (disabled) [ 29.937623][ T1] evm: security.SMACK64EXEC (disabled) [ 29.943088][ T1] evm: security.SMACK64TRANSMUTE (disabled) [ 29.948967][ T1] evm: security.SMACK64MMAP (disabled) [ 29.954435][ T1] evm: security.apparmor [ 29.958662][ T1] evm: security.ima [ 29.962478][ T1] evm: security.capability [ 29.966893][ T1] evm: HMAC attrs: 0x1 [ 29.973825][ T1] PM: Magic number: 1:963:583 [ 29.978800][ T1] cec cec10: hash matches [ 29.983532][ T1] tty ptyc1: hash matches [ 29.988103][ T1] netconsole: network logging started [ 29.994201][ T1] gtp: GTP module loaded (pdp ctx size 128 bytes) [ 30.007061][ T1] rdma_rxe: loaded [ 30.013137][ T1] cfg80211: Loading compiled-in X.509 certificates for regulatory database [ 30.024801][ T1] Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' [ 30.034477][ T1] Loaded X.509 cert 'wens: 61c038651aabdcf94bd0ac7ff06c7248db18c600' [ 30.044095][ T1208] faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2 [ 30.051936][ T1] clk: Disabling unused clocks [ 30.053922][ T1208] faux_driver regulatory: Falling back to sysfs fallback for: regulatory.db [ 30.058707][ T1] ALSA device list: [ 30.071200][ T1] #0: Dummy 1 [ 30.074969][ T1] #1: Loopback 1 [ 30.078718][ T1] #2: Virtual MIDI Card 1 [ 30.086410][ T1] check access for rdinit=/init failed: -2, ignoring [ 30.093222][ T1] md: Waiting for all devices to be available before autodetect [ 30.100857][ T1] md: If you don't use raid, use raid=noautodetect [ 30.107485][ T1] md: Autodetecting RAID arrays. [ 30.112631][ T1] md: autorun ... [ 30.116274][ T1] md: ... autorun DONE. [ 30.242475][ T1] EXT4-fs (sda1): orphan cleanup on readonly fs [ 30.251116][ T1] EXT4-fs (sda1): mounted filesystem 4f91c6db-4997-4bb4-91b8-7e83a20c1bf1 ro with ordered data mode. Quota mode: none. [ 30.263959][ T1] VFS: Mounted root (ext4 filesystem) readonly on device 8:1. [ 30.274587][ T1] devtmpfs: mounted [ 30.350955][ T1] Freeing unused kernel image (initmem) memory: 26112K [ 30.361768][ T1] Write protecting the kernel read-only data: 212992k [ 30.380228][ T1] Freeing unused kernel image (text/rodata gap) memory: 1436K [ 30.392825][ T1] Freeing unused kernel image (rodata/data gap) memory: 1240K [ 30.528715][ T1] x86/mm: Checked W+X mappings: passed, no W+X pages found. [ 30.536730][ T1] x86/mm: Checking user space page tables [ 30.654084][ T1] x86/mm: Checked W+X mappings: passed, no W+X pages found. [ 30.666870][ T1] Failed to set sysctl parameter 'max_rcu_stall_to_panic=1': parameter not found [ 30.676750][ T1] Run /sbin/init as init process [ 31.177715][ T5158] mount (5158) used greatest stack depth: 23576 bytes left [ 31.225728][ T5159] EXT4-fs (sda1): re-mounted 4f91c6db-4997-4bb4-91b8-7e83a20c1bf1 r/w. mount: mounting devtmpfs on /dev failed: Device or resource busy mount: mounting smackfs on /sys/fs/smackfs failed: No such file or directory mount: mounting selinuxfs on /sys/fs/selinux failed: No such file or directory [ 31.387784][ T5163] mount (5163) used greatest stack depth: 21672 bytes left Starting syslogd: OK Starting acpid: OK Starting klogd: OK Running sysctl: OK Populating /dev using udev: [ 32.674421][ T5193] udevd[5193]: starting version 3.2.14 [ 32.996569][ T5194] udevd[5194]: starting eudev-3.2.14 [ 33.000117][ T5193] udevd (5193) used greatest stack depth: 18696 bytes left done Starting system message bus: done Starting iptables: OK Starting network: OK Starting dhcpcd... dhcpcd-10.2.0 starting [ 56.220735][ T5488] ------------[ cut here ]------------ [ 56.226516][ T5488] WARNING: ./include/linux/ns_common.h:314 at nsfs_evict+0x18e/0x200, CPU#1: dhcpcd/5488 [ 56.236736][ T5488] Modules linked in: [ 56.240773][ T5488] CPU: 1 UID: 0 PID: 5488 Comm: dhcpcd Not tainted syzkaller #0 PREEMPT(full) [ 56.249797][ T5488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 56.260095][ T5488] RIP: 0010:nsfs_evict+0x18e/0x200 [ 56.265291][ T5488] Code: 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 41 ff e3 cc cc cc e8 01 c7 76 ff 90 0f 0b 90 e9 1f ff ff ff e8 f3 c6 76 ff 90 <0f> 0b 90 e9 42 ff ff ff e8 e5 c6 76 ff 90 0f 0b 90 e9 72 ff ff ff [ 56.285086][ T5488] RSP: 0018:ffffc9000389fa28 EFLAGS: 00010293 [ 56.291186][ T5488] RAX: ffffffff824b0e3d RBX: ffffffff9a180fd8 RCX: ffff888027d00000 [ 56.299224][ T5488] RDX: 0000000000000000 RSI: 00000000effffff8 RDI: 00000000effffff8 [ 56.307291][ T5488] RBP: 00000000effffff8 R08: ffffffff9a181093 R09: 1ffffffff3430212 [ 56.315341][ T5488] R10: dffffc0000000000 R11: fffffbfff3430213 R12: dffffc0000000000 [ 56.323376][ T5488] R13: 1ffffffff34301fe R14: ffff888077f26d50 R15: ffffffff9a180ff0 [ 56.331386][ T5488] FS: 00007ff1e1049740(0000) GS:ffff888125b78000(0000) knlGS:0000000000000000 [ 56.340332][ T5488] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.346978][ T5488] CR2: 00005604455e84a0 CR3: 000000007d5e6000 CR4: 00000000003526f0 [ 56.354995][ T5488] Call Trace: [ 56.358288][ T5488] <TASK> [ 56.361298][ T5488] ? __pfx_nsfs_evict+0x10/0x10 [ 56.366173][ T5488] evict+0x5f4/0xae0 [ 56.370068][ T5488] ? __pfx_evict+0x10/0x10 [ 56.374531][ T5488] ? _raw_spin_unlock+0x28/0x50 [ 56.379401][ T5488] ? iput+0xce7/0x1050 [ 56.383538][ T5488] __dentry_kill+0x209/0x660 [ 56.388147][ T5488] ? dput+0x37/0x2b0 [ 56.392093][ T5488] dput+0x19f/0x2b0 [ 56.395945][ T5488] path_put+0x39/0x60 [ 56.399929][ T5488] vfs_statx+0x36e/0x550 [ 56.404250][ T5488] ? __pfx_vfs_statx+0x10/0x10 [ 56.409209][ T5488] ? strncpy_from_user+0x150/0x2c0 [ 56.414394][ T5488] ? getname_flags+0x1e5/0x540 [ 56.419195][ T5488] vfs_fstatat+0x118/0x170 [ 56.423710][ T5488] __x64_sys_newfstatat+0x116/0x190 [ 56.428941][ T5488] ? __pfx___x64_sys_newfstatat+0x10/0x10 [ 56.434927][ T5488] ? do_syscall_64+0xbe/0xfa0 [ 56.439644][ T5488] do_syscall_64+0xfa/0xfa0 [ 56.444214][ T5488] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 56.450300][ T5488] ? clear_bhb_loop+0x60/0xb0 [ 56.455019][ T5488] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 56.460957][ T5488] RIP: 0033:0x7ff1e113db0a [ 56.465433][ T5488] Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7 [ 56.485147][ T5488] RSP: 002b:00007ffe530d70b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 [ 56.493625][ T5488] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff1e113db0a [ 56.501659][ T5488] RDX: 00007ffe530d70c0 RSI: 0000560445610557 RDI: 00000000ffffff9c [ 56.509645][ T5488] RBP: 00007ffe530d9858 R08: 0000000000000000 R09: 0000000000000000 [ 56.517679][ T5488] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe530d8230 [ 56.525708][ T5488] R13: 000056044e3fd8a0 R14: 0000000000001000 R15: 00007ff1e10496c8 [ 56.533830][ T5488] </TASK> [ 56.536879][ T5488] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 56.544239][ T5488] CPU: 1 UID: 0 PID: 5488 Comm: dhcpcd Not tainted syzkaller #0 PREEMPT(full) [ 56.553163][ T5488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 56.563227][ T5488] Call Trace: [ 56.566502][ T5488] <TASK> [ 56.569528][ T5488] dump_stack_lvl+0x99/0x250 [ 56.574131][ T5488] ? __asan_memcpy+0x40/0x70 [ 56.578721][ T5488] ? __pfx_dump_stack_lvl+0x10/0x10 [ 56.583912][ T5488] ? __pfx__printk+0x10/0x10 [ 56.588500][ T5488] vpanic+0x237/0x6d0 [ 56.592733][ T5488] ? __pfx_vpanic+0x10/0x10 [ 56.597237][ T5488] ? is_bpf_text_address+0x292/0x2b0 [ 56.602529][ T5488] ? is_bpf_text_address+0x26/0x2b0 [ 56.607740][ T5488] panic+0xb9/0xc0 [ 56.611464][ T5488] ? __pfx_panic+0x10/0x10 [ 56.615906][ T5488] __warn+0x334/0x4c0 [ 56.619892][ T5488] ? nsfs_evict+0x18e/0x200 [ 56.624402][ T5488] ? nsfs_evict+0x18e/0x200 [ 56.628910][ T5488] report_bug+0x2be/0x4f0 [ 56.633248][ T5488] ? nsfs_evict+0x18e/0x200 [ 56.637754][ T5488] ? nsfs_evict+0x18e/0x200 [ 56.642261][ T5488] ? nsfs_evict+0x190/0x200 [ 56.646864][ T5488] handle_bug+0x84/0x160 [ 56.651109][ T5488] exc_invalid_op+0x1a/0x50 [ 56.655637][ T5488] asm_exc_invalid_op+0x1a/0x20 [ 56.660495][ T5488] RIP: 0010:nsfs_evict+0x18e/0x200 [ 56.665614][ T5488] Code: 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 41 ff e3 cc cc cc e8 01 c7 76 ff 90 0f 0b 90 e9 1f ff ff ff e8 f3 c6 76 ff 90 <0f> 0b 90 e9 42 ff ff ff e8 e5 c6 76 ff 90 0f 0b 90 e9 72 ff ff ff [ 56.685231][ T5488] RSP: 0018:ffffc9000389fa28 EFLAGS: 00010293 [ 56.691305][ T5488] RAX: ffffffff824b0e3d RBX: ffffffff9a180fd8 RCX: ffff888027d00000 [ 56.699276][ T5488] RDX: 0000000000000000 RSI: 00000000effffff8 RDI: 00000000effffff8 [ 56.707248][ T5488] RBP: 00000000effffff8 R08: ffffffff9a181093 R09: 1ffffffff3430212 [ 56.715395][ T5488] R10: dffffc0000000000 R11: fffffbfff3430213 R12: dffffc0000000000 [ 56.723457][ T5488] R13: 1ffffffff34301fe R14: ffff888077f26d50 R15: ffffffff9a180ff0 [ 56.731441][ T5488] ? nsfs_evict+0x18d/0x200 [ 56.735961][ T5488] ? nsfs_evict+0x18d/0x200 [ 56.740466][ T5488] ? __pfx_nsfs_evict+0x10/0x10 [ 56.745344][ T5488] evict+0x5f4/0xae0 [ 56.749272][ T5488] ? __pfx_evict+0x10/0x10 [ 56.753700][ T5488] ? _raw_spin_unlock+0x28/0x50 [ 56.758559][ T5488] ? iput+0xce7/0x1050 [ 56.762727][ T5488] __dentry_kill+0x209/0x660 [ 56.767321][ T5488] ? dput+0x37/0x2b0 [ 56.771225][ T5488] dput+0x19f/0x2b0 [ 56.775046][ T5488] path_put+0x39/0x60 [ 56.779037][ T5488] vfs_statx+0x36e/0x550 [ 56.783307][ T5488] ? __pfx_vfs_statx+0x10/0x10 [ 56.788107][ T5488] ? strncpy_from_user+0x150/0x2c0 [ 56.793251][ T5488] ? getname_flags+0x1e5/0x540 [ 56.798034][ T5488] vfs_fstatat+0x118/0x170 [ 56.802466][ T5488] __x64_sys_newfstatat+0x116/0x190 [ 56.807674][ T5488] ? __pfx___x64_sys_newfstatat+0x10/0x10 [ 56.813445][ T5488] ? do_syscall_64+0xbe/0xfa0 [ 56.818158][ T5488] do_syscall_64+0xfa/0xfa0 [ 56.822684][ T5488] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 56.828855][ T5488] ? clear_bhb_loop+0x60/0xb0 [ 56.833544][ T5488] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 56.839529][ T5488] RIP: 0033:0x7ff1e113db0a [ 56.844039][ T5488] Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7 [ 56.863750][ T5488] RSP: 002b:00007ffe530d70b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 [ 56.872366][ T5488] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ff1e113db0a [ 56.880429][ T5488] RDX: 00007ffe530d70c0 RSI: 0000560445610557 RDI: 00000000ffffff9c [ 56.888417][ T5488] RBP: 00007ffe530d9858 R08: 0000000000000000 R09: 0000000000000000 [ 56.896404][ T5488] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe530d8230 [ 56.904382][ T5488] R13: 000056044e3fd8a0 R14: 0000000000001000 R15: 00007ff1e10496c8 [ 56.912381][ T5488] </TASK> [ 56.915663][ T5488] Kernel Offset: disabled [ 56.920100][ T5488] Rebooting in 86400 seconds.. syzkaller build log: go env (err=<nil>) AR='ar' CC='gcc' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_ENABLED='1' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' CXX='g++' GCCGO='gccgo' GO111MODULE='auto' GOAMD64='v1' GOARCH='amd64' GOAUTH='netrc' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOCACHEPROG='' GODEBUG='' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFIPS140='off' GOFLAGS='' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build3988901650=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs-2/linux/gopath' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/usr/local/go' GOSUMDB='sum.golang.org' GOTELEMETRY='local' GOTELEMETRYDIR='/syzkaller/.config/go/telemetry' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.24.4' GOWORK='' PKG_CONFIG='pkg-config' git status (err=<nil>) HEAD detached at a6c9c731229 nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea -X github.com/google/syzkaller/prog.gitRevisionDate=20251104-181356" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea -X github.com/google/syzkaller/prog.gitRevisionDate=20251104-181356" ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea -X github.com/google/syzkaller/prog.gitRevisionDate=20251104-181356" -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea\" /usr/bin/ld: /tmp/ccZrqXJp.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking ./tools/check-syzos.sh 2>/dev/null Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=14843812580000 Tested on: commit: 9c0826a5 Add linux-next specific files for 20251107 git tree: linux-next kernel config: https://syzkaller.appspot.com/x/.config?x=4f8fcc6438a785e7 dashboard link: https://syzkaller.appspot.com/bug?extid=0b2e79f91ff6579bfa5b compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=167110b4580000 ^ permalink raw reply [flat|nested] 15+ messages in thread
[parent not found: <20251107114102.22298-1-kartikey406@gmail.com>]
* Re: [syzbot] [fs?] WARNING in nsproxy_ns_active_put [not found] <20251107114102.22298-1-kartikey406@gmail.com> @ 2025-11-07 13:06 ` syzbot 0 siblings, 0 replies; 15+ messages in thread From: syzbot @ 2025-11-07 13:06 UTC (permalink / raw) To: kartikey406, linux-kernel, syzkaller-bugs Hello, syzbot tried to test the proposed patch but the build/boot failed: 970707b2' [ 21.974518][ T1] zswap: loaded using pool 842 [ 21.982912][ T1] Demotion targets for Node 0: null [ 21.988200][ T1] Demotion targets for Node 1: null [ 21.993522][ T1] debug_vm_pgtable: [debug_vm_pgtable ]: Validating architecture page table helpers [ 24.797559][ T1] Key type .fscrypt registered [ 24.802517][ T1] Key type fscrypt-provisioning registered [ 24.811687][ T1] kAFS: Red Hat AFS client v0.1 registering. [ 24.837336][ T1] Btrfs loaded, assert=on, zoned=yes, fsverity=yes [ 24.844500][ T1] Key type big_key registered [ 24.849260][ T1] Key type encrypted registered [ 24.854106][ T1] AppArmor: AppArmor sha256 policy hashing enabled [ 24.860731][ T1] ima: No TPM chip found, activating TPM-bypass! [ 24.867175][ T1] Loading compiled-in module X.509 certificates [ 24.894366][ T1] Loaded X.509 cert 'Build time autogenerated kernel key: de56e482b03ecd8d239a6590830ee0f7970707b2' [ 24.905348][ T1] ima: Allocated hash algorithm: sha256 [ 24.911357][ T1] ima: No architecture policies found [ 24.917173][ T1] evm: Initialising EVM extended attributes: [ 24.923151][ T1] evm: security.selinux (disabled) [ 24.928238][ T1] evm: security.SMACK64 (disabled) [ 24.933355][ T1] evm: security.SMACK64EXEC (disabled) [ 24.938815][ T1] evm: security.SMACK64TRANSMUTE (disabled) [ 24.944683][ T1] evm: security.SMACK64MMAP (disabled) [ 24.950134][ T1] evm: security.apparmor [ 24.954370][ T1] evm: security.ima [ 24.958145][ T1] evm: security.capability [ 24.962553][ T1] evm: HMAC attrs: 0x1 [ 24.968988][ T1] PM: Magic number: 1:272:986 [ 24.973842][ T1] net rose20: hash matches [ 24.978361][ T1] dsp_pipeline hwec: hash matches [ 24.984302][ T1] netconsole: network logging started [ 24.990369][ T1] gtp: GTP module loaded (pdp ctx size 128 bytes) [ 25.002183][ T1] rdma_rxe: loaded [ 25.007915][ T1] cfg80211: Loading compiled-in X.509 certificates for regulatory database [ 25.019009][ T1] Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' [ 25.026972][ T1] Loaded X.509 cert 'wens: 61c038651aabdcf94bd0ac7ff06c7248db18c600' [ 25.038011][ T1] clk: Disabling unused clocks [ 25.043143][ T1] ALSA device list: [ 25.044532][ T793] faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2 [ 25.046952][ T1] #0: Dummy 1 [ 25.046964][ T1] #1: Loopback 1 [ 25.056659][ T793] faux_driver regulatory: Falling back to sysfs fallback for: regulatory.db [ 25.072704][ T1] #2: Virtual MIDI Card 1 [ 25.080464][ T1] check access for rdinit=/init failed: -2, ignoring [ 25.087134][ T1] md: Waiting for all devices to be available before autodetect [ 25.094786][ T1] md: If you don't use raid, use raid=noautodetect [ 25.101311][ T1] md: Autodetecting RAID arrays. [ 25.106328][ T1] md: autorun ... [ 25.109974][ T1] md: ... autorun DONE. [ 25.202934][ T1] EXT4-fs (sda1): orphan cleanup on readonly fs [ 25.211522][ T1] EXT4-fs (sda1): mounted filesystem 4f91c6db-4997-4bb4-91b8-7e83a20c1bf1 ro with ordered data mode. Quota mode: none. [ 25.224301][ T1] VFS: Mounted root (ext4 filesystem) readonly on device 8:1. [ 25.234167][ T1] devtmpfs: mounted [ 25.311718][ T1] Freeing unused kernel image (initmem) memory: 26112K [ 25.322460][ T1] Write protecting the kernel read-only data: 212992k [ 25.341592][ T1] Freeing unused kernel image (text/rodata gap) memory: 1436K [ 25.353977][ T1] Freeing unused kernel image (rodata/data gap) memory: 1240K [ 25.458459][ T1] x86/mm: Checked W+X mappings: passed, no W+X pages found. [ 25.466412][ T1] x86/mm: Checking user space page tables [ 25.555644][ T1] x86/mm: Checked W+X mappings: passed, no W+X pages found. [ 25.568271][ T1] Failed to set sysctl parameter 'max_rcu_stall_to_panic=1': parameter not found [ 25.578126][ T1] Run /sbin/init as init process [ 25.833630][ T5157] mount (5157) used greatest stack depth: 23816 bytes left [ 25.885026][ T5158] EXT4-fs (sda1): re-mounted 4f91c6db-4997-4bb4-91b8-7e83a20c1bf1 r/w. [ 25.897827][ T5158] mount (5158) used greatest stack depth: 23624 bytes left mount: mounting devtmpfs on /dev failed: Device or resource busy mount: mounting smackfs on /sys/fs/smackfs failed: No such file or directory mount: mounting selinuxfs on /sys/fs/selinux failed: No such file or directory [ 26.026823][ T5162] mount (5162) used greatest stack depth: 21672 bytes left Starting syslogd: OK Starting acpid: [ 26.448559][ T5177] acpid (5177) used greatest stack depth: 20968 bytes left OK Starting klogd: OK Running sysctl: OK Populating /dev using udev: [ 27.039741][ T5192] udevd[5192]: starting version 3.2.14 [ 27.206253][ T5193] udevd[5193]: starting eudev-3.2.14 [ 27.210256][ T5192] udevd (5192) used greatest stack depth: 18088 bytes left done Starting system message bus: done Starting iptables: OK Starting network: OK Starting dhcpcd... dhcpcd-10.2.0 starting [ 46.776298][ T5487] ------------[ cut here ]------------ [ 46.781953][ T5487] WARNING: ./include/linux/ns_common.h:314 at nsfs_evict+0x18e/0x200, CPU#1: dhcpcd/5487 [ 46.792403][ T5487] Modules linked in: [ 46.796337][ T5487] CPU: 1 UID: 0 PID: 5487 Comm: dhcpcd Not tainted syzkaller #0 PREEMPT(full) [ 46.805316][ T5487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 46.815409][ T5487] RIP: 0010:nsfs_evict+0x18e/0x200 [ 46.820563][ T5487] Code: 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 41 ff e3 cc cc cc e8 01 c7 76 ff 90 0f 0b 90 e9 1f ff ff ff e8 f3 c6 76 ff 90 <0f> 0b 90 e9 42 ff ff ff e8 e5 c6 76 ff 90 0f 0b 90 e9 72 ff ff ff [ 46.840207][ T5487] RSP: 0018:ffffc900039afa28 EFLAGS: 00010293 [ 46.846262][ T5487] RAX: ffffffff824b0e3d RBX: ffffffff9a180fd8 RCX: ffff88802e6d1e80 [ 46.854272][ T5487] RDX: 0000000000000000 RSI: 00000000effffff8 RDI: 00000000effffff8 [ 46.862272][ T5487] RBP: 00000000effffff8 R08: ffffffff9a181093 R09: 1ffffffff3430212 [ 46.870298][ T5487] R10: dffffc0000000000 R11: fffffbfff3430213 R12: dffffc0000000000 [ 46.878265][ T5487] R13: 1ffffffff34301fe R14: ffff88807a7cf248 R15: ffffffff9a180ff0 [ 46.886301][ T5487] FS: 00007f5b3bc92740(0000) GS:ffff888125b78000(0000) knlGS:0000000000000000 [ 46.895267][ T5487] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.901937][ T5487] CR2: 0000563ddc89c4a0 CR3: 000000006f210000 CR4: 00000000003526f0 [ 46.909942][ T5487] Call Trace: [ 46.913233][ T5487] <TASK> [ 46.916163][ T5487] ? __pfx_nsfs_evict+0x10/0x10 [ 46.921065][ T5487] evict+0x5f4/0xae0 [ 46.925002][ T5487] ? __pfx_evict+0x10/0x10 [ 46.929539][ T5487] ? _raw_spin_unlock+0x28/0x50 [ 46.934391][ T5487] ? iput+0xce7/0x1050 [ 46.938444][ T5487] __dentry_kill+0x209/0x660 [ 46.943076][ T5487] ? dput+0x37/0x2b0 [ 46.946973][ T5487] dput+0x19f/0x2b0 [ 46.950799][ T5487] path_put+0x39/0x60 [ 46.954833][ T5487] vfs_statx+0x36e/0x550 [ 46.959106][ T5487] ? __pfx_vfs_statx+0x10/0x10 [ 46.963873][ T5487] ? strncpy_from_user+0x150/0x2c0 [ 46.969019][ T5487] ? getname_flags+0x1e5/0x540 [ 46.973824][ T5487] vfs_fstatat+0x118/0x170 [ 46.978223][ T5487] __x64_sys_newfstatat+0x116/0x190 [ 46.983447][ T5487] ? __pfx___x64_sys_newfstatat+0x10/0x10 [ 46.989202][ T5487] ? do_syscall_64+0xbe/0xfa0 [ 46.993883][ T5487] do_syscall_64+0xfa/0xfa0 [ 46.998365][ T5487] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 47.004477][ T5487] ? clear_bhb_loop+0x60/0xb0 [ 47.009189][ T5487] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 47.015094][ T5487] RIP: 0033:0x7f5b3bd86b0a [ 47.019580][ T5487] Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7 [ 47.039327][ T5487] RSP: 002b:00007ffc209e1718 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 [ 47.047744][ T5487] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5b3bd86b0a [ 47.055741][ T5487] RDX: 00007ffc209e1720 RSI: 0000563ddc8c4557 RDI: 00000000ffffff9c [ 47.063747][ T5487] RBP: 00007ffc209e3eb8 R08: 0000000000000000 R09: 0000000000000000 [ 47.071763][ T5487] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc209e2890 [ 47.079775][ T5487] R13: 0000563e1752d8a0 R14: 0000000000001000 R15: 00007f5b3bc926c8 [ 47.087762][ T5487] </TASK> [ 47.090819][ T5487] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 47.098094][ T5487] CPU: 1 UID: 0 PID: 5487 Comm: dhcpcd Not tainted syzkaller #0 PREEMPT(full) [ 47.107008][ T5487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 47.117042][ T5487] Call Trace: [ 47.120305][ T5487] <TASK> [ 47.123217][ T5487] dump_stack_lvl+0x99/0x250 [ 47.127804][ T5487] ? __asan_memcpy+0x40/0x70 [ 47.132372][ T5487] ? __pfx_dump_stack_lvl+0x10/0x10 [ 47.137549][ T5487] ? __pfx__printk+0x10/0x10 [ 47.142123][ T5487] vpanic+0x237/0x6d0 [ 47.146171][ T5487] ? __pfx_vpanic+0x10/0x10 [ 47.150648][ T5487] ? is_bpf_text_address+0x292/0x2b0 [ 47.155913][ T5487] ? is_bpf_text_address+0x26/0x2b0 [ 47.161096][ T5487] panic+0xb9/0xc0 [ 47.164798][ T5487] ? __pfx_panic+0x10/0x10 [ 47.169202][ T5487] __warn+0x334/0x4c0 [ 47.173160][ T5487] ? nsfs_evict+0x18e/0x200 [ 47.177641][ T5487] ? nsfs_evict+0x18e/0x200 [ 47.182126][ T5487] report_bug+0x2be/0x4f0 [ 47.186436][ T5487] ? nsfs_evict+0x18e/0x200 [ 47.190915][ T5487] ? nsfs_evict+0x18e/0x200 [ 47.195395][ T5487] ? nsfs_evict+0x190/0x200 [ 47.199876][ T5487] handle_bug+0x84/0x160 [ 47.204114][ T5487] exc_invalid_op+0x1a/0x50 [ 47.208629][ T5487] asm_exc_invalid_op+0x1a/0x20 [ 47.213486][ T5487] RIP: 0010:nsfs_evict+0x18e/0x200 [ 47.218605][ T5487] Code: 4d 8b 1e 48 89 df 5b 41 5c 41 5d 41 5e 41 5f 5d 41 ff e3 cc cc cc e8 01 c7 76 ff 90 0f 0b 90 e9 1f ff ff ff e8 f3 c6 76 ff 90 <0f> 0b 90 e9 42 ff ff ff e8 e5 c6 76 ff 90 0f 0b 90 e9 72 ff ff ff [ 47.238215][ T5487] RSP: 0018:ffffc900039afa28 EFLAGS: 00010293 [ 47.244897][ T5487] RAX: ffffffff824b0e3d RBX: ffffffff9a180fd8 RCX: ffff88802e6d1e80 [ 47.252860][ T5487] RDX: 0000000000000000 RSI: 00000000effffff8 RDI: 00000000effffff8 [ 47.260822][ T5487] RBP: 00000000effffff8 R08: ffffffff9a181093 R09: 1ffffffff3430212 [ 47.268783][ T5487] R10: dffffc0000000000 R11: fffffbfff3430213 R12: dffffc0000000000 [ 47.276756][ T5487] R13: 1ffffffff34301fe R14: ffff88807a7cf248 R15: ffffffff9a180ff0 [ 47.284739][ T5487] ? nsfs_evict+0x18d/0x200 [ 47.289248][ T5487] ? nsfs_evict+0x18d/0x200 [ 47.293742][ T5487] ? __pfx_nsfs_evict+0x10/0x10 [ 47.298581][ T5487] evict+0x5f4/0xae0 [ 47.302483][ T5487] ? __pfx_evict+0x10/0x10 [ 47.306894][ T5487] ? _raw_spin_unlock+0x28/0x50 [ 47.311737][ T5487] ? iput+0xce7/0x1050 [ 47.315801][ T5487] __dentry_kill+0x209/0x660 [ 47.320380][ T5487] ? dput+0x37/0x2b0 [ 47.324265][ T5487] dput+0x19f/0x2b0 [ 47.328059][ T5487] path_put+0x39/0x60 [ 47.332030][ T5487] vfs_statx+0x36e/0x550 [ 47.336284][ T5487] ? __pfx_vfs_statx+0x10/0x10 [ 47.341048][ T5487] ? strncpy_from_user+0x150/0x2c0 [ 47.346174][ T5487] ? getname_flags+0x1e5/0x540 [ 47.350940][ T5487] vfs_fstatat+0x118/0x170 [ 47.355369][ T5487] __x64_sys_newfstatat+0x116/0x190 [ 47.360640][ T5487] ? __pfx___x64_sys_newfstatat+0x10/0x10 [ 47.366383][ T5487] ? do_syscall_64+0xbe/0xfa0 [ 47.371078][ T5487] do_syscall_64+0xfa/0xfa0 [ 47.375592][ T5487] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 47.381648][ T5487] ? clear_bhb_loop+0x60/0xb0 [ 47.386425][ T5487] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 47.392748][ T5487] RIP: 0033:0x7f5b3bd86b0a [ 47.397245][ T5487] Code: 48 8b 15 f1 f2 0d 00 f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 89 ca b8 06 01 00 00 0f 05 <3d> 00 f0 ff ff 77 07 31 c0 c3 0f 1f 40 00 48 8b 15 b9 f2 0d 00 f7 [ 47.416866][ T5487] RSP: 002b:00007ffc209e1718 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 [ 47.425277][ T5487] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5b3bd86b0a [ 47.433236][ T5487] RDX: 00007ffc209e1720 RSI: 0000563ddc8c4557 RDI: 00000000ffffff9c [ 47.441215][ T5487] RBP: 00007ffc209e3eb8 R08: 0000000000000000 R09: 0000000000000000 [ 47.449171][ T5487] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc209e2890 [ 47.457124][ T5487] R13: 0000563e1752d8a0 R14: 0000000000001000 R15: 00007f5b3bc926c8 [ 47.465097][ T5487] </TASK> [ 47.468346][ T5487] Kernel Offset: disabled [ 47.472660][ T5487] Rebooting in 86400 seconds.. syzkaller build log: go env (err=<nil>) AR='ar' CC='gcc' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_ENABLED='1' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' CXX='g++' GCCGO='gccgo' GO111MODULE='auto' GOAMD64='v1' GOARCH='amd64' GOAUTH='netrc' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOCACHEPROG='' GODEBUG='' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFIPS140='off' GOFLAGS='' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build1222549954=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs-2/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs-2/linux/gopath' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/usr/local/go' GOSUMDB='sum.golang.org' GOTELEMETRY='local' GOTELEMETRYDIR='/syzkaller/.config/go/telemetry' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.24.4' GOWORK='' PKG_CONFIG='pkg-config' git status (err=<nil>) HEAD detached at a6c9c731229 nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea -X github.com/google/syzkaller/prog.gitRevisionDate=20251104-181356" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea -X github.com/google/syzkaller/prog.gitRevisionDate=20251104-181356" ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea -X github.com/google/syzkaller/prog.gitRevisionDate=20251104-181356" -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"a6c9c7312290da5bca2fc1be4872a7aeefb6e3ea\" /usr/bin/ld: /tmp/ccl2NrsB.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking ./tools/check-syzos.sh 2>/dev/null Error text is too large and was truncated, full error text is at: https://syzkaller.appspot.com/x/error.txt?x=17b05084580000 Tested on: commit: 9c0826a5 Add linux-next specific files for 20251107 git tree: linux-next kernel config: https://syzkaller.appspot.com/x/.config?x=4f8fcc6438a785e7 dashboard link: https://syzkaller.appspot.com/bug?extid=0b2e79f91ff6579bfa5b compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=11e03812580000 ^ permalink raw reply [flat|nested] 15+ messages in thread
[parent not found: <20251107101419.15312-1-kartikey406@gmail.com>]
* Re: [syzbot] [fs?] WARNING in nsproxy_ns_active_put [not found] <20251107101419.15312-1-kartikey406@gmail.com> @ 2025-11-07 10:42 ` syzbot 0 siblings, 0 replies; 15+ messages in thread From: syzbot @ 2025-11-07 10:42 UTC (permalink / raw) To: kartikey406, linux-kernel, syzkaller-bugs Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING in alloc_pid ------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:288 at __ns_ref_active_get include/linux/ns_common.h:288 [inline], CPU#1: syz-executor/6396 WARNING: ./include/linux/ns_common.h:288 at alloc_pid+0xad6/0xc70 kernel/pid.c:285, CPU#1: syz-executor/6396 Modules linked in: CPU: 1 UID: 0 PID: 6396 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__ns_ref_active_get include/linux/ns_common.h:288 [inline] RIP: 0010:alloc_pid+0xad6/0xc70 kernel/pid.c:285 Code: cc e8 7e d6 34 00 be 02 00 00 00 eb 0a e8 72 d6 34 00 be 01 00 00 00 48 89 df e8 05 d8 0c 03 e9 84 fa ff ff e8 5b d6 34 00 90 <0f> 0b 90 e9 2c fd ff ff e8 4d d6 34 00 90 0f 0b 90 e9 5b fd ff ff RSP: 0018:ffffc900035d79d8 EFLAGS: 00010293 RAX: ffffffff818cf9d5 RBX: ffff888075669998 RCX: ffff8880279b1e80 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002 RBP: ffff888075cab901 R08: ffff88807566999b R09: 1ffff1100eacd333 R10: dffffc0000000000 R11: ffffed100eacd334 R12: dffffc0000000000 R13: 1ffff1100eb95751 R14: ffff888075669830 R15: dffffc0000000000 FS: 000055556cc43500(0000) GS:ffff888125b79000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7cfd1156c0 CR3: 00000000246e4000 CR4: 00000000003526f0 Call Trace: <TASK> copy_process+0x18e7/0x3930 kernel/fork.c:2196 kernel_clone+0x21e/0x840 kernel/fork.c:2609 __do_sys_clone kernel/fork.c:2750 [inline] __se_sys_clone kernel/fork.c:2734 [inline] __x64_sys_clone+0x18b/0x1e0 kernel/fork.c:2734 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7cfc385e13 Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007ffeab10e9d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7cfc385e13 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 000055556cc437d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000000927c0 R14: 0000000000021378 R15: 00007ffeab10eb70 </TASK> Tested on: commit: 9c0826a5 Add linux-next specific files for 20251107 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=162110b4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=4f8fcc6438a785e7 dashboard link: https://syzkaller.appspot.com/bug?extid=0b2e79f91ff6579bfa5b compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=12afd812580000 ^ permalink raw reply [flat|nested] 15+ messages in thread
* [syzbot] [fs?] WARNING in nsproxy_ns_active_put @ 2025-11-06 1:36 syzbot 2025-11-09 8:24 ` syzbot 0 siblings, 1 reply; 15+ messages in thread From: syzbot @ 2025-11-06 1:36 UTC (permalink / raw) To: brauner, jack, linux-fsdevel, linux-kernel, syzkaller-bugs, viro Hello, syzbot found the following issue on: HEAD commit: 84d39fb9d529 Add linux-next specific files for 20251105 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=122ec0b4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=413cf24e78b667b9 dashboard link: https://syzkaller.appspot.com/bug?extid=0b2e79f91ff6579bfa5b compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12e09342580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14126114580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/49de85e8d717/disk-84d39fb9.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/4fd90ea7659f/vmlinux-84d39fb9.xz kernel image: https://storage.googleapis.com/syzbot-assets/235e0ee874fe/bzImage-84d39fb9.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+0b2e79f91ff6579bfa5b@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:311 at __ns_ref_active_put include/linux/ns_common.h:311 [inline], CPU#0: syz.2.29/6060 WARNING: ./include/linux/ns_common.h:311 at nsproxy_ns_active_put+0xa19/0xd30 fs/nsfs.c:707, CPU#0: syz.2.29/6060 Modules linked in: CPU: 0 UID: 0 PID: 6060 Comm: syz.2.29 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__ns_ref_active_put include/linux/ns_common.h:311 [inline] RIP: 0010:nsproxy_ns_active_put+0xa19/0xd30 fs/nsfs.c:707 Code: 0f 0b 90 e9 71 fc ff ff e8 54 52 77 ff 90 0f 0b 90 e9 ab fc ff ff e8 46 52 77 ff 90 0f 0b 90 e9 41 fd ff ff e8 38 52 77 ff 90 <0f> 0b 90 e9 64 fd ff ff e8 2a 52 77 ff 90 0f 0b 90 e9 98 fd ff ff RSP: 0018:ffffc900033f7d38 EFLAGS: 00010293 RAX: ffffffff824a1b88 RBX: ffff88805876a750 RCX: ffff88807e148000 RDX: 0000000000000000 RSI: 00000000effffff8 RDI: 00000000effffff8 RBP: 00000000effffff8 R08: ffffffff8e36cb4b R09: 1ffffffff1c6d969 R10: dffffc0000000000 R11: fffffbfff1c6d96a R12: dffffc0000000000 R13: 1ffffffff1c6d955 R14: ffffffff8e36ca80 R15: ffffffff8e36caa8 FS: 00005555653d3500(0000) GS:ffff888125a8b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30163fff CR3: 0000000076924000 CR4: 00000000003526f0 Call Trace: <TASK> free_nsproxy+0x26/0x560 kernel/nsproxy.c:190 put_nsset kernel/nsproxy.c:341 [inline] __do_sys_setns kernel/nsproxy.c:594 [inline] __se_sys_setns+0x1268/0x17d0 kernel/nsproxy.c:559 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [syzbot] [fs?] WARNING in nsproxy_ns_active_put 2025-11-06 1:36 syzbot @ 2025-11-09 8:24 ` syzbot 2025-11-11 9:24 ` Christian Brauner 0 siblings, 1 reply; 15+ messages in thread From: syzbot @ 2025-11-09 8:24 UTC (permalink / raw) To: Liam.Howlett, Liam.Howlett, akpm, bpf, brauner, bsegall, david, dietmar.eggemann, jack, jsavitz, juri.lelli, kartikey406, kees, linux-fsdevel, linux-kernel, linux-mm, linux-security-module, lorenzo.stoakes, mgorman, mhocko, mingo, mjguzik, oleg, paul, peterz, rostedt, rppt, sergeh, surenb, syzkaller-bugs, vbabka, vincent.guittot, viro, vschneid syzbot has bisected this issue to: commit 3a18f809184bc5a1cfad7cde5b8b026e2ff61587 Author: Christian Brauner <brauner@kernel.org> Date: Wed Oct 29 12:20:24 2025 +0000 ns: add active reference count bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11a350b4580000 start commit: 9c0826a5d9aa Add linux-next specific files for 20251107 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=13a350b4580000 console output: https://syzkaller.appspot.com/x/log.txt?x=15a350b4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=f2ebeee52bf052b8 dashboard link: https://syzkaller.appspot.com/bug?extid=0b2e79f91ff6579bfa5b syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1639d084580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1625aa92580000 Reported-by: syzbot+0b2e79f91ff6579bfa5b@syzkaller.appspotmail.com Fixes: 3a18f809184b ("ns: add active reference count") For information about bisection process see: https://goo.gl/tpsmEJ#bisection ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [syzbot] [fs?] WARNING in nsproxy_ns_active_put 2025-11-09 8:24 ` syzbot @ 2025-11-11 9:24 ` Christian Brauner 2025-11-11 9:46 ` syzbot 0 siblings, 1 reply; 15+ messages in thread From: Christian Brauner @ 2025-11-11 9:24 UTC (permalink / raw) To: syzbot Cc: Liam.Howlett, akpm, bpf, bsegall, david, dietmar.eggemann, jack, jsavitz, juri.lelli, kartikey406, kees, linux-fsdevel, linux-kernel, linux-mm, linux-security-module, lorenzo.stoakes, mgorman, mhocko, mingo, mjguzik, oleg, paul, peterz, rostedt, rppt, sergeh, surenb, syzkaller-bugs, vbabka, vincent.guittot, viro, vschneid On Sun, Nov 09, 2025 at 12:24:02AM -0800, syzbot wrote: > syzbot has bisected this issue to: > > commit 3a18f809184bc5a1cfad7cde5b8b026e2ff61587 > Author: Christian Brauner <brauner@kernel.org> > Date: Wed Oct 29 12:20:24 2025 +0000 > > ns: add active reference count > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11a350b4580000 > start commit: 9c0826a5d9aa Add linux-next specific files for 20251107 > git tree: linux-next > final oops: https://syzkaller.appspot.com/x/report.txt?x=13a350b4580000 > console output: https://syzkaller.appspot.com/x/log.txt?x=15a350b4580000 > kernel config: https://syzkaller.appspot.com/x/.config?x=f2ebeee52bf052b8 > dashboard link: https://syzkaller.appspot.com/bug?extid=0b2e79f91ff6579bfa5b > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1639d084580000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1625aa92580000 > > Reported-by: syzbot+0b2e79f91ff6579bfa5b@syzkaller.appspotmail.com > Fixes: 3a18f809184b ("ns: add active reference count") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection #syz test: https://github.com/brauner/linux.git namespace-6.19 ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [syzbot] [fs?] WARNING in nsproxy_ns_active_put 2025-11-11 9:24 ` Christian Brauner @ 2025-11-11 9:46 ` syzbot 2025-11-11 10:26 ` Christian Brauner 0 siblings, 1 reply; 15+ messages in thread From: syzbot @ 2025-11-11 9:46 UTC (permalink / raw) To: akpm, bpf, brauner, bsegall, david, dietmar.eggemann, jack, jsavitz, juri.lelli, kartikey406, kees, liam.howlett, linux-fsdevel, linux-kernel, linux-mm, linux-security-module, lorenzo.stoakes, mgorman, mhocko, mingo, mjguzik, oleg, paul, peterz, rostedt, rppt, sergeh, surenb, syzkaller-bugs, vbabka, vincent.guittot, viro, vschneid Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING in __ns_ref_active_put ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6489 at kernel/nscommon.c:171 __ns_ref_active_put+0x3d7/0x450 kernel/nscommon.c:171 Modules linked in: CPU: 0 UID: 0 PID: 6489 Comm: syz.0.18 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__ns_ref_active_put+0x3d7/0x450 kernel/nscommon.c:171 Code: 4d 8b 3e e9 1b fd ff ff e8 b6 61 32 00 90 0f 0b 90 e9 29 fd ff ff e8 a8 61 32 00 90 0f 0b 90 e9 59 fd ff ff e8 9a 61 32 00 90 <0f> 0b 90 e9 72 ff ff ff e8 8c 61 32 00 90 0f 0b 90 e9 64 ff ff ff RSP: 0018:ffffc90003457d50 EFLAGS: 00010293 RAX: ffffffff818e5b86 RBX: 00000000ffffffff RCX: ffff88802cc69e40 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: ffffc90003457e00 R08: ffff8880320be42b R09: 1ffff11006417c85 R10: dffffc0000000000 R11: ffffed1006417c86 R12: dffffc0000000000 R13: 1ffff11006417c84 R14: ffff8880320be420 R15: ffff8880320be428 FS: 00007fe11c3746c0(0000) GS:ffff888125cf3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d863fff CR3: 000000007798c000 CR4: 00000000003526f0 Call Trace: <TASK> nsproxy_ns_active_put+0x4a/0x200 fs/nsfs.c:701 free_nsproxy+0x21/0x140 kernel/nsproxy.c:190 put_nsset kernel/nsproxy.c:341 [inline] __do_sys_setns kernel/nsproxy.c:594 [inline] __se_sys_setns+0x1459/0x1c60 kernel/nsproxy.c:559 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe11b590ef7 Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe11c373fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe11b590ef7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000c9 RBP: 00007fe11b611f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe11b7e6038 R14: 00007fe11b7e5fa0 R15: 00007ffcd9b83d18 </TASK> Tested on: commit: 18b5c400 Merge patch series "ns: header cleanups and i.. git tree: https://github.com/brauner/linux.git namespace-6.19 console output: https://syzkaller.appspot.com/x/log.txt?x=12c08658580000 kernel config: https://syzkaller.appspot.com/x/.config?x=59952e73920025e4 dashboard link: https://syzkaller.appspot.com/bug?extid=0b2e79f91ff6579bfa5b compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 Note: no patches were applied. ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [syzbot] [fs?] WARNING in nsproxy_ns_active_put 2025-11-11 9:46 ` syzbot @ 2025-11-11 10:26 ` Christian Brauner 2025-11-11 11:02 ` syzbot 0 siblings, 1 reply; 15+ messages in thread From: Christian Brauner @ 2025-11-11 10:26 UTC (permalink / raw) To: syzbot Cc: akpm, bpf, bsegall, david, dietmar.eggemann, jack, jsavitz, juri.lelli, kartikey406, kees, liam.howlett, linux-fsdevel, linux-kernel, linux-mm, linux-security-module, lorenzo.stoakes, mgorman, mhocko, mingo, mjguzik, oleg, paul, peterz, rostedt, rppt, sergeh, surenb, syzkaller-bugs, vbabka, vincent.guittot, viro, vschneid On Tue, Nov 11, 2025 at 01:46:03AM -0800, syzbot wrote: > Hello, > > syzbot has tested the proposed patch but the reproducer is still triggering an issue: > WARNING in __ns_ref_active_put #syz test: https://github.com/brauner/linux.git namespace-6.19.fixes ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [syzbot] [fs?] WARNING in nsproxy_ns_active_put 2025-11-11 10:26 ` Christian Brauner @ 2025-11-11 11:02 ` syzbot 2025-11-11 11:23 ` Christian Brauner 0 siblings, 1 reply; 15+ messages in thread From: syzbot @ 2025-11-11 11:02 UTC (permalink / raw) To: akpm, bpf, brauner, bsegall, david, dietmar.eggemann, jack, jsavitz, juri.lelli, kartikey406, kees, liam.howlett, linux-fsdevel, linux-kernel, linux-mm, linux-security-module, lorenzo.stoakes, mgorman, mhocko, mingo, mjguzik, oleg, paul, peterz, rostedt, rppt, sergeh, surenb, syzkaller-bugs, vbabka, vincent.guittot, viro, vschneid Hello, syzbot tried to test the proposed patch but the build/boot failed: SYZFAIL: failed to recv rpc SYZFAIL: failed to recv rpc Warning: Permanently added '10.128.1.29' (ED25519) to the list of known hosts. 2025/11/11 11:01:12 parsed 1 programs [ 92.366829][ T894] cfg80211: failed to load regulatory.db [ 94.101317][ T5831] cgroup: Unknown subsys name 'net' [ 94.208868][ T5831] cgroup: Unknown subsys name 'cpuset' [ 94.218695][ T5831] cgroup: Unknown subsys name 'rlimit' Setting up swapspace version 1, size = 127995904 bytes [ 95.913996][ T5831] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 99.210494][ T5845] soft_limit_in_bytes is deprecated and will be removed. Please report your usecase to linux-mm@kvack.org if you depend on this functionality. [ 99.368014][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 99.376801][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 99.385991][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 99.394090][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 99.403295][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 99.760048][ T67] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 99.769465][ T67] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 99.812956][ T13] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 99.820978][ T13] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 101.094305][ T5880] chnl_net:caif_netlink_parms(): no params data found [ 101.244059][ T5880] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.252746][ T5880] bridge0: port 1(bridge_slave_0) entered disabled state [ 101.261818][ T5880] bridge_slave_0: entered allmulticast mode [ 101.270392][ T5880] bridge_slave_0: entered promiscuous mode [ 101.283473][ T5880] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.291198][ T5880] bridge0: port 2(bridge_slave_1) entered disabled state [ 101.298667][ T5880] bridge_slave_1: entered allmulticast mode [ 101.307108][ T5880] bridge_slave_1: entered promiscuous mode [ 101.360560][ T5880] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 101.373330][ T5880] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 101.413565][ T5880] team0: Port device team_slave_0 added [ 101.422832][ T5880] team0: Port device team_slave_1 added [ 101.463069][ T5880] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 101.470261][ T5880] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 101.497282][ T5880] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 101.511788][ T5880] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 101.518889][ T5880] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 101.545058][ T5880] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 101.590841][ T5880] hsr_slave_0: entered promiscuous mode [ 101.597434][ T5880] hsr_slave_1: entered promiscuous mode [ 101.741572][ T5880] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 101.754163][ T5880] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 101.764799][ T5880] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 101.774770][ T5880] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 101.805511][ T5880] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.812788][ T5880] bridge0: port 2(bridge_slave_1) entered forwarding state [ 101.820983][ T5880] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.828371][ T5880] bridge0: port 1(bridge_slave_0) entered forwarding state [ 101.843110][ T13] bridge0: port 1(bridge_slave_0) entered disabled state [ 101.851795][ T13] bridge0: port 2(bridge_slave_1) entered disabled state [ 101.904027][ T5880] 8021q: adding VLAN 0 to HW filter on device bond0 [ 101.928006][ T5880] 8021q: adding VLAN 0 to HW filter on device team0 [ 101.942529][ T3448] bridge0: port 1(bridge_slave_0) entered blocking state [ 101.950392][ T3448] bridge0: port 1(bridge_slave_0) entered forwarding state [ 101.964563][ T13] bridge0: port 2(bridge_slave_1) entered blocking state [ 101.971799][ T13] bridge0: port 2(bridge_slave_1) entered forwarding state [ 102.152983][ T5880] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 102.197805][ T5880] veth0_vlan: entered promiscuous mode [ 102.210102][ T5880] veth1_vlan: entered promiscuous mode [ 102.244663][ T5880] veth0_macvtap: entered promiscuous mode [ 102.254634][ T5880] veth1_macvtap: entered promiscuous mode [ 102.273656][ T5880] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 102.289496][ T5880] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 102.304731][ T67] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.314238][ T67] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.324278][ T67] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.334159][ T67] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 102.469673][ T67] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 102.543054][ T67] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 102.622429][ T67] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 102.698368][ T67] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2025/11/11 11:01:26 executed programs: 0 [ 104.788606][ T52] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 104.799432][ T52] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 104.807512][ T52] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 104.816410][ T52] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 104.824560][ T52] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 104.982601][ T5940] chnl_net:caif_netlink_parms(): no params data found [ 105.059249][ T5940] bridge0: port 1(bridge_slave_0) entered blocking state [ 105.066542][ T5940] bridge0: port 1(bridge_slave_0) entered disabled state [ 105.073685][ T5940] bridge_slave_0: entered allmulticast mode [ 105.081124][ T5940] bridge_slave_0: entered promiscuous mode [ 105.089124][ T5940] bridge0: port 2(bridge_slave_1) entered blocking state [ 105.096583][ T5940] bridge0: port 2(bridge_slave_1) entered disabled state [ 105.104018][ T5940] bridge_slave_1: entered allmulticast mode [ 105.111771][ T5940] bridge_slave_1: entered promiscuous mode [ 105.143334][ T5940] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 105.155734][ T5940] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 105.191407][ T5940] team0: Port device team_slave_0 added [ 105.201031][ T5940] team0: Port device team_slave_1 added [ 105.235802][ T5940] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 105.242802][ T5940] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 105.269608][ T5940] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 105.296300][ T5940] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 105.303516][ T5940] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1532 would solve the problem. [ 105.331738][ T5940] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 105.417552][ T5940] hsr_slave_0: entered promiscuous mode [ 105.424204][ T5940] hsr_slave_1: entered promiscuous mode [ 105.430828][ T5940] debugfs: 'hsr0' already exists in 'hsr' [ 105.437317][ T5940] Cannot create hsr debugfs directory [ 105.454873][ T67] bridge_slave_1: left allmulticast mode [ 105.460813][ T67] bridge_slave_1: left promiscuous mode [ 105.467853][ T67] bridge0: port 2(bridge_slave_1) entered disabled state [ 105.479304][ T67] bridge_slave_0: left allmulticast mode [ 105.485065][ T67] bridge_slave_0: left promiscuous mode [ 105.491001][ T67] bridge0: port 1(bridge_slave_0) entered disabled state [ 105.729562][ T67] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 105.741503][ T67] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 105.752583][ T67] bond0 (unregistering): Released all slaves [ 105.835828][ T67] hsr_slave_0: left promiscuous mode [ 105.842862][ T67] hsr_slave_1: left promiscuous mode [ 105.849433][ T67] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 105.857469][ T67] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 105.865850][ T67] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 105.873344][ T67] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 105.890846][ T67] veth1_macvtap: left promiscuous mode [ 105.897610][ T67] veth0_macvtap: left promiscuous mode [ 105.903553][ T67] veth1_vlan: left promiscuous mode [ 105.910171][ T67] veth0_vlan: left promiscuous mode [ 106.222498][ T67] team0 (unregistering): Port device team_slave_1 removed [ 106.255035][ T67] team0 (unregistering): Port device team_slave_0 removed [ 106.849861][ T52] Bluetooth: hci0: command tx timeout [ 107.366951][ T5940] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 107.390747][ T5940] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 107.409101][ T5940] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 107.429220][ T5940] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 107.687917][ T5940] 8021q: adding VLAN 0 to HW filter on device bond0 [ 107.729157][ T5940] 8021q: adding VLAN 0 to HW filter on device team0 [ 107.757652][ T1309] bridge0: port 1(bridge_slave_0) entered blocking state [ 107.764863][ T1309] bridge0: port 1(bridge_slave_0) entered forwarding state [ 107.814393][ T1309] bridge0: port 2(bridge_slave_1) entered blocking state [ 107.821819][ T1309] bridge0: port 2(bridge_slave_1) entered forwarding state [ 108.188295][ T5940] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 108.234481][ T5940] veth0_vlan: entered promiscuous mode [ 108.246943][ T5940] veth1_vlan: entered promiscuous mode [ 108.277479][ T5940] veth0_macvtap: entered promiscuous mode [ 108.288108][ T5940] veth1_macvtap: entered promiscuous mode [ 108.306578][ T5940] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 108.321859][ T5940] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 108.336901][ T1322] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.346834][ T1322] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.358941][ T1322] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.368475][ T1322] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 108.430497][ T1309] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 108.438794][ T1309] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 108.474331][ T67] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 108.484170][ T67] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 SYZFAIL: failed to recv rpc syzkaller build log: go env (err=<nil>) AR='ar' CC='gcc' CGO_CFLAGS='-O2 -g' CGO_CPPFLAGS='' CGO_CXXFLAGS='-O2 -g' CGO_ENABLED='1' CGO_FFLAGS='-O2 -g' CGO_LDFLAGS='-O2 -g' CXX='g++' GCCGO='gccgo' GO111MODULE='auto' GOAMD64='v1' GOARCH='amd64' GOAUTH='netrc' GOBIN='' GOCACHE='/syzkaller/.cache/go-build' GOCACHEPROG='' GODEBUG='' GOENV='/syzkaller/.config/go/env' GOEXE='' GOEXPERIMENT='' GOFIPS140='off' GOFLAGS='' GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build3388558029=/tmp/go-build -gno-record-gcc-switches' GOHOSTARCH='amd64' GOHOSTOS='linux' GOINSECURE='' GOMOD='/syzkaller/jobs/linux/gopath/src/github.com/google/syzkaller/go.mod' GOMODCACHE='/syzkaller/jobs/linux/gopath/pkg/mod' GONOPROXY='' GONOSUMDB='' GOOS='linux' GOPATH='/syzkaller/jobs/linux/gopath' GOPRIVATE='' GOPROXY='https://proxy.golang.org,direct' GOROOT='/usr/local/go' GOSUMDB='sum.golang.org' GOTELEMETRY='local' GOTELEMETRYDIR='/syzkaller/.config/go/telemetry' GOTMPDIR='' GOTOOLCHAIN='auto' GOTOOLDIR='/usr/local/go/pkg/tool/linux_amd64' GOVCS='' GOVERSION='go1.24.4' GOWORK='' PKG_CONFIG='pkg-config' git status (err=<nil>) HEAD detached at 4e1406b4def nothing to commit, working tree clean tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env go list -f '{{.Stale}}' -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=4e1406b4defac0e2a9d9424c70706f79a7750cf3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251106-151142" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=4e1406b4defac0e2a9d9424c70706f79a7750cf3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251106-151142" ./sys/syz-sysgen make .descriptions tput: No value for $TERM and no -T specified tput: No value for $TERM and no -T specified Makefile:31: run command via tools/syz-env for best compatibility, see: Makefile:32: https://github.com/google/syzkaller/blob/master/docs/contributing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=linux GOARCH=amd64 go build -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=4e1406b4defac0e2a9d9424c70706f79a7750cf3 -X github.com/google/syzkaller/prog.gitRevisionDate=20251106-151142" -o ./bin/linux_amd64/syz-execprog github.com/google/syzkaller/tools/syz-execprog mkdir -p ./bin/linux_amd64 g++ -o ./bin/linux_amd64/syz-executor executor/executor.cc \ -m64 -O2 -pthread -Wall -Werror -Wparentheses -Wunused-const-variable -Wframe-larger-than=16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-format-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -static-pie -std=c++17 -I. -Iexecutor/_include -DGOOS_linux=1 -DGOARCH_amd64=1 \ -DHOSTGOOS_linux=1 -DGIT_REVISION=\"4e1406b4defac0e2a9d9424c70706f79a7750cf3\" /usr/bin/ld: /tmp/ccimHo7N.o: in function `Connection::Connect(char const*, char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking ./tools/check-syzos.sh 2>/dev/null Tested on: commit: ae901e5e Merge patch series "ns: fixes for namespace i.. git tree: https://github.com/brauner/linux.git namespace-6.19.fixes kernel config: https://syzkaller.appspot.com/x/.config?x=7b0bf36f88602817 dashboard link: https://syzkaller.appspot.com/bug?extid=0b2e79f91ff6579bfa5b compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 Note: no patches were applied. ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [syzbot] [fs?] WARNING in nsproxy_ns_active_put 2025-11-11 11:02 ` syzbot @ 2025-11-11 11:23 ` Christian Brauner 2025-11-11 11:38 ` Christian Brauner 0 siblings, 1 reply; 15+ messages in thread From: Christian Brauner @ 2025-11-11 11:23 UTC (permalink / raw) To: syzbot Cc: akpm, bpf, bsegall, david, dietmar.eggemann, jack, jsavitz, juri.lelli, kartikey406, kees, liam.howlett, linux-fsdevel, linux-kernel, linux-mm, linux-security-module, lorenzo.stoakes, mgorman, mhocko, mingo, mjguzik, oleg, paul, peterz, rostedt, rppt, sergeh, surenb, syzkaller-bugs, vbabka, vincent.guittot, viro, vschneid On Tue, Nov 11, 2025 at 03:02:03AM -0800, syzbot wrote: > Hello, > > syzbot tried to test the proposed patch but the build/boot failed: I think that's unrelated. Anyway, I managed to point this to the wrong branch. I'll send another test request in a bit. ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [syzbot] [fs?] WARNING in nsproxy_ns_active_put 2025-11-11 11:23 ` Christian Brauner @ 2025-11-11 11:38 ` Christian Brauner 2025-11-11 13:03 ` syzbot 0 siblings, 1 reply; 15+ messages in thread From: Christian Brauner @ 2025-11-11 11:38 UTC (permalink / raw) To: syzbot Cc: akpm, bpf, bsegall, david, dietmar.eggemann, jack, jsavitz, juri.lelli, kartikey406, kees, liam.howlett, linux-fsdevel, linux-kernel, linux-mm, linux-security-module, lorenzo.stoakes, mgorman, mhocko, mingo, mjguzik, oleg, paul, peterz, rostedt, rppt, sergeh, surenb, syzkaller-bugs, vbabka, vincent.guittot, viro, vschneid On Tue, Nov 11, 2025 at 12:23:18PM +0100, Christian Brauner wrote: > On Tue, Nov 11, 2025 at 03:02:03AM -0800, syzbot wrote: > > Hello, > > > > syzbot tried to test the proposed patch but the build/boot failed: > > I think that's unrelated. Anyway, I managed to point this to the wrong > branch. I'll send another test request in a bit. #syz test: https://github.com/brauner/linux.git namespace-6.19 ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [syzbot] [fs?] WARNING in nsproxy_ns_active_put 2025-11-11 11:38 ` Christian Brauner @ 2025-11-11 13:03 ` syzbot 2025-11-11 15:07 ` Christian Brauner 0 siblings, 1 reply; 15+ messages in thread From: syzbot @ 2025-11-11 13:03 UTC (permalink / raw) To: akpm, bpf, brauner, bsegall, david, dietmar.eggemann, jack, jsavitz, juri.lelli, kartikey406, kees, liam.howlett, linux-fsdevel, linux-kernel, linux-mm, linux-security-module, lorenzo.stoakes, mgorman, mhocko, mingo, mjguzik, oleg, paul, peterz, rostedt, rppt, sergeh, surenb, syzkaller-bugs, vbabka, vincent.guittot, viro, vschneid Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING in __ns_ref_active_put ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6581 at kernel/nscommon.c:171 __ns_ref_active_put+0x3d7/0x450 kernel/nscommon.c:171 Modules linked in: CPU: 0 UID: 0 PID: 6581 Comm: syz.0.18 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:__ns_ref_active_put+0x3d7/0x450 kernel/nscommon.c:171 Code: 4d 8b 3e e9 1b fd ff ff e8 76 62 32 00 90 0f 0b 90 e9 29 fd ff ff e8 68 62 32 00 90 0f 0b 90 e9 59 fd ff ff e8 5a 62 32 00 90 <0f> 0b 90 e9 72 ff ff ff e8 4c 62 32 00 90 0f 0b 90 e9 64 ff ff ff RSP: 0018:ffffc9000238fd68 EFLAGS: 00010293 RAX: ffffffff818e5946 RBX: 00000000ffffffff RCX: ffff8880302ebc80 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000000 RBP: ffffc9000238fe00 R08: ffff888078968c2b R09: 1ffff1100f12d185 R10: dffffc0000000000 R11: ffffed100f12d186 R12: dffffc0000000000 R13: 1ffff1100f12d184 R14: ffff888078968c20 R15: ffff888078968c28 FS: 00007efc0fd536c0(0000) GS:ffff888125cf3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33263fff CR3: 0000000030876000 CR4: 00000000003526f0 Call Trace: <TASK> nsproxy_ns_active_put+0x4a/0x200 fs/nsfs.c:701 free_nsproxy kernel/nsproxy.c:80 [inline] put_nsset kernel/nsproxy.c:316 [inline] __do_sys_setns kernel/nsproxy.c:-1 [inline] __se_sys_setns+0x1349/0x1b60 kernel/nsproxy.c:534 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7efc0ef90ef7 Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007efc0fd52fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007efc0ef90ef7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000c9 RBP: 00007efc0f011f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007efc0f1e6038 R14: 00007efc0f1e5fa0 R15: 00007fff5692b648 </TASK> Tested on: commit: cc719c88 nsproxy: fix free_nsproxy() and simplify crea.. git tree: https://github.com/brauner/linux.git namespace-6.19 console output: https://syzkaller.appspot.com/x/log.txt?x=1613f17c580000 kernel config: https://syzkaller.appspot.com/x/.config?x=59952e73920025e4 dashboard link: https://syzkaller.appspot.com/bug?extid=0b2e79f91ff6579bfa5b compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 Note: no patches were applied. ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [syzbot] [fs?] WARNING in nsproxy_ns_active_put 2025-11-11 13:03 ` syzbot @ 2025-11-11 15:07 ` Christian Brauner 2025-11-11 16:14 ` syzbot 0 siblings, 1 reply; 15+ messages in thread From: Christian Brauner @ 2025-11-11 15:07 UTC (permalink / raw) To: syzbot Cc: akpm, bpf, bsegall, david, dietmar.eggemann, jack, jsavitz, juri.lelli, kartikey406, kees, liam.howlett, linux-fsdevel, linux-kernel, linux-mm, linux-security-module, lorenzo.stoakes, mgorman, mhocko, mingo, mjguzik, oleg, paul, peterz, rostedt, rppt, sergeh, surenb, syzkaller-bugs, vbabka, vincent.guittot, viro, vschneid On Tue, Nov 11, 2025 at 05:03:03AM -0800, syzbot wrote: > Hello, > > syzbot has tested the proposed patch but the reproducer is still triggering an issue: > WARNING in __ns_ref_active_put #syz test: https://github.com/brauner/linux.git namespace-6.19 Groan, forgot the actual important bit after the cleanup: * Called from unshare. Unshare all the namespaces part of nsproxy. * On success, returns the new nsproxy. @@ -338,7 +313,7 @@ static void put_nsset(struct nsset *nsset) if (nsset->fs && (flags & CLONE_NEWNS) && (flags & ~CLONE_NEWNS)) free_fs_struct(nsset->fs); if (nsset->nsproxy) - free_nsproxy(nsset->nsproxy); + nsproxy_free(nsset->nsproxy); } ^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [syzbot] [fs?] WARNING in nsproxy_ns_active_put 2025-11-11 15:07 ` Christian Brauner @ 2025-11-11 16:14 ` syzbot 0 siblings, 0 replies; 15+ messages in thread From: syzbot @ 2025-11-11 16:14 UTC (permalink / raw) To: akpm, bpf, brauner, bsegall, david, dietmar.eggemann, jack, jsavitz, juri.lelli, kartikey406, kees, liam.howlett, linux-fsdevel, linux-kernel, linux-mm, linux-security-module, lorenzo.stoakes, mgorman, mhocko, mingo, mjguzik, oleg, paul, peterz, rostedt, rppt, sergeh, surenb, syzkaller-bugs, vbabka, vincent.guittot, viro, vschneid Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+0b2e79f91ff6579bfa5b@syzkaller.appspotmail.com Tested-by: syzbot+0b2e79f91ff6579bfa5b@syzkaller.appspotmail.com Tested on: commit: d2bab7f2 nsproxy: fix free_nsproxy() and simplify crea.. git tree: https://github.com/brauner/linux.git namespace-6.19 console output: https://syzkaller.appspot.com/x/log.txt?x=123a8658580000 kernel config: https://syzkaller.appspot.com/x/.config?x=59952e73920025e4 dashboard link: https://syzkaller.appspot.com/bug?extid=0b2e79f91ff6579bfa5b compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 Note: no patches were applied. Note: testing is done by a robot and is best-effort only. ^ permalink raw reply [flat|nested] 15+ messages in thread
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