* [syzbot] [jffs2?] KASAN: invalid-free in jffs2_free_inode
@ 2026-08-23 13:33 syzbot
0 siblings, 0 replies; 2+ messages in thread
From: syzbot @ 2026-08-23 13:33 UTC (permalink / raw)
To: dwmw2, linux-kernel, linux-mtd, richard, syzkaller-bugs
Hello,
syzbot found the following issue on:
HEAD commit: b126f6f5940f Merge tag 'x86_mm_for_7.3-rc1' of git://git.k..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=15ae2549580000
kernel config: https://syzkaller.appspot.com/x/.config?x=90b2fd087b14b23e
dashboard link: https://syzkaller.appspot.com/bug?extid=675e84fdf3dde67b4946
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=136c3a25580000
Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-b126f6f5.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/c8d6c4cd1182/vmlinux-b126f6f5.xz
kernel image: https://storage.googleapis.com/syzbot-assets/559693826b5b/bzImage-b126f6f5.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+675e84fdf3dde67b4946@syzkaller.appspotmail.com
R13: 00007f2c55825fac R14: 00007f2c55825fa0 R15: 00007f2c55825fa0
</TASK>
==================================================================
BUG: KASAN: double-free in jffs2_free_inode+0x39/0x60 fs/jffs2/super.c:52
Free of addr ffff8880371e2200 by task syz.0.345/6450
CPU: 0 UID: 0 PID: 6450 Comm: syz.0.345 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120
print_address_description mm/kasan/report.c:378 [inline]
print_report+0x13d/0x4b0 mm/kasan/report.c:482
kasan_report_invalid_free+0xb8/0x190 mm/kasan/report.c:557
check_slab_allocation+0xc3/0xf0 mm/kasan/common.c:235
kasan_slab_pre_free include/linux/kasan.h:199 [inline]
slab_free_hook mm/slub.c:2622 [inline]
slab_free mm/slub.c:6377 [inline]
kfree+0x1b6/0x6c0 mm/slub.c:6692
jffs2_free_inode+0x39/0x60 fs/jffs2/super.c:52
i_callback fs/inode.c:317 [inline]
alloc_inode+0x153/0x250 fs/inode.c:352
iget_locked+0x1d9/0x6d0 fs/inode.c:1473
jffs2_iget+0xb5/0xe30 fs/jffs2/fs.c:265
jffs2_lookup+0x353/0x410 fs/jffs2/dir.c:114
lookup_one_qstr_excl+0x1cd/0x250 fs/namei.c:1810
__start_dirop fs/namei.c:2920 [inline]
start_dirop fs/namei.c:2942 [inline]
filename_create+0x1cf/0x400 fs/namei.c:5092
filename_symlinkat+0xe1/0x560 fs/namei.c:5813
__do_sys_symlink fs/namei.c:5846 [inline]
__se_sys_symlink fs/namei.c:5842 [inline]
__x64_sys_symlink+0x79/0xb0 fs/namei.c:5842
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2c5559e0d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc968200b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000058
RAX: ffffffffffffffda RBX: 00007f2c55825fa0 RCX: 00007f2c5559e0d9
RDX: 0000000000000000 RSI: 0000200000000800 RDI: 0000200000000540
RBP: 00007ffc96820120 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007f2c55825fac R14: 00007f2c55825fa0 R15: 00007f2c55825fa0
</TASK>
Allocated by task 6382:
kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
kasan_save_track+0x14/0x30 mm/kasan/common.c:78
poison_kmalloc_redzone mm/kasan/common.c:398 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:415
kasan_kmalloc include/linux/kasan.h:263 [inline]
__do_kmalloc_node mm/slub.c:5334 [inline]
__kmalloc_noprof+0x324/0x820 mm/slub.c:5359
_kmalloc_noprof include/linux/slab.h:992 [inline]
_kmalloc_array_noprof include/linux/slab.h:1208 [inline]
security_inode_init_security+0x113/0x370 security/security.c:1347
shmem_symlink+0x163/0xa00 mm/shmem.c:4044
vfs_symlink fs/namei.c:5794 [inline]
vfs_symlink+0x178/0x4d0 fs/namei.c:5773
filename_symlinkat+0x2a6/0x560 fs/namei.c:5819
__do_sys_symlinkat fs/namei.c:5839 [inline]
__se_sys_symlinkat fs/namei.c:5834 [inline]
__x64_sys_symlinkat+0x9c/0xe0 fs/namei.c:5834
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Freed by task 6382:
kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
kasan_save_track+0x14/0x30 mm/kasan/common.c:78
kasan_save_free_info+0x3b/0x70 mm/kasan/generic.c:584
poison_slab_object mm/kasan/common.c:253 [inline]
__kasan_slab_free+0x5f/0x80 mm/kasan/common.c:285
kasan_slab_free include/linux/kasan.h:235 [inline]
slab_free_hook mm/slub.c:2677 [inline]
slab_free mm/slub.c:6377 [inline]
kfree+0x22b/0x6c0 mm/slub.c:6692
security_inode_init_security+0x2bf/0x370 security/security.c:1374
shmem_symlink+0x163/0xa00 mm/shmem.c:4044
vfs_symlink fs/namei.c:5794 [inline]
vfs_symlink+0x178/0x4d0 fs/namei.c:5773
filename_symlinkat+0x2a6/0x560 fs/namei.c:5819
__do_sys_symlinkat fs/namei.c:5839 [inline]
__se_sys_symlinkat fs/namei.c:5834 [inline]
__x64_sys_symlinkat+0x9c/0xe0 fs/namei.c:5834
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
The buggy address belongs to the object at ffff8880371e2200
which belongs to the cache kmalloc-256 of size 256
The buggy address is located 0 bytes inside of
256-byte region [ffff8880371e2200, ffff8880371e2300)
The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff8880371e2200 pfn:0x371e2
head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0xfff00000000240(workingset|head|node=0|zone=1|lastcpupid=0x7ff)
page_type: f5(slab)
raw: 00fff00000000240 ffff88801c042b40 ffffea0000e86f90 ffffea0000f41010
raw: ffff8880371e2200 000000080010000e 00000000f5000000 0000000000000000
head: 00fff00000000240 ffff88801c042b40 ffffea0000e86f90 ffffea0000f41010
head: ffff8880371e2200 000000080010000e 00000000f5000000 0000000000000000
head: 00fff00000000001 ffffffffffffff81 00000000ffffffff 00000000ffffffff
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd2040(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 5784, tgid 5784 (syz-executor), ts 57239645098, free_ts 56961973186
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0xfd/0x120 mm/page_alloc.c:1859
prep_new_page mm/page_alloc.c:1867 [inline]
get_page_from_freelist+0xf46/0x3500 mm/page_alloc.c:3946
__alloc_frozen_pages_noprof+0x299/0x2dc0 mm/page_alloc.c:5304
alloc_slab_page mm/slub.c:3266 [inline]
allocate_slab mm/slub.c:3380 [inline]
new_slab+0xa2/0x660 mm/slub.c:3426
refill_objects+0xe3/0x410 mm/slub.c:7310
refill_sheaf mm/slub.c:2804 [inline]
__pcs_replace_empty_main+0x372/0x680 mm/slub.c:4675
alloc_from_pcs mm/slub.c:4773 [inline]
slab_alloc_node mm/slub.c:4905 [inline]
__do_kmalloc_node mm/slub.c:5333 [inline]
__kmalloc_noprof+0x66b/0x820 mm/slub.c:5359
_kmalloc_noprof include/linux/slab.h:992 [inline]
_kmalloc_array_noprof include/linux/slab.h:1208 [inline]
security_inode_init_security+0x113/0x370 security/security.c:1347
shmem_mknod+0x2ce/0x480 mm/shmem.c:3814
shmem_mkdir+0x31/0x80 mm/shmem.c:3869
vfs_mkdir+0x364/0x850 fs/namei.c:5410
filename_mkdirat+0x48b/0x5e0 fs/namei.c:5443
__do_sys_mkdirat fs/namei.c:5464 [inline]
__se_sys_mkdirat fs/namei.c:5461 [inline]
__x64_sys_mkdirat+0x89/0xc0 fs/namei.c:5461
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5777 tgid 5777 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1406 [inline]
__free_frozen_pages+0x79f/0x1090 mm/page_alloc.c:2950
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x47/0xf0 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4584 [inline]
slab_alloc_node mm/slub.c:4917 [inline]
kmem_cache_alloc_noprof+0x26b/0x6a0 mm/slub.c:4931
anon_vma_chain_alloc mm/rmap.c:142 [inline]
__anon_vma_prepare+0xae/0x5e0 mm/rmap.c:194
__vmf_anon_prepare+0x11f/0x250 mm/memory.c:3829
vmf_anon_prepare mm/internal.h:494 [inline]
do_anonymous_page+0x51b/0x2080 mm/memory.c:5338
do_pte_missing mm/memory.c:4564 [inline]
handle_pte_fault mm/memory.c:6379 [inline]
__handle_mm_fault+0x1d2c/0x2a00 mm/memory.c:6517
handle_mm_fault+0x37b/0xa30 mm/memory.c:6686
do_user_addr_fault+0x59c/0x12f0 arch/x86/mm/fault.c:1343
handle_page_fault arch/x86/mm/fault.c:1483 [inline]
exc_page_fault+0x6f/0xd0 arch/x86/mm/fault.c:1536
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
Memory state around the buggy address:
ffff8880371e2100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
ffff8880371e2180: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880371e2200: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880371e2280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880371e2300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
---
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] 2+ messages in thread
* Re: [syzbot] [jffs2?] KASAN: invalid-free in jffs2_free_inode
[not found] <20260823145222.16926-1-kartikey406@gmail.com>
@ 2026-08-23 15:15 ` syzbot
0 siblings, 0 replies; 2+ messages in thread
From: syzbot @ 2026-08-23 15:15 UTC (permalink / raw)
To: kartikey406, linux-kernel, syzkaller-bugs
Hello,
syzbot tried to test the proposed patch but the build/boot failed:
type thunderbolt registered
[ 5.109762][ T1] RAPL PMU: API unit is 2^-32 Joules, 0 fixed counters, 10737418240 ms ovfl timer
[ 5.167027][ T1] kvm_amd: CPU 1 isn't AMD or Hygon
[ 5.170858][ T1] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x257a472b559, max_idle_ns: 440795210424 ns
[ 5.178905][ T1] clocksource: Switched to clocksource tsc
[ 5.184715][ T77] kworker/u33:0 (77) used greatest stack depth: 27720 bytes left
[ 5.222205][ T1] Initialise system trusted keyrings
[ 5.227062][ T1] workingset: timestamp_bits=40 (anon: 35) max_order=20 bucket_order=0 (anon: 0)
[ 5.238398][ T1] DLM installed
[ 5.244470][ T1] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 5.252618][ T1] NFS: Registering the id_resolver key type
[ 5.256814][ T1] Key type id_resolver registered
[ 5.260341][ T1] Key type id_legacy registered
[ 5.263954][ T1] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 5.269476][ T1] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
[ 5.277246][ T1] smbdirect: subsystem loading...
[ 5.284270][ T1] smbdirect: subsystem loaded
[ 5.297332][ T1] Key type cifs.spnego registered
[ 5.301670][ T1] Key type cifs.idmap registered
[ 5.308638][ T1] ntfs3: Enabled Linux POSIX ACLs support
[ 5.312587][ T1] ntfs3: Read-only LZX/Xpress compression included
[ 5.317633][ T1] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc.
[ 5.325326][ T1] romfs: ROMFS MTD (C) 2007 Red Hat, Inc.
[ 5.329463][ T1] QNX4 filesystem 0.2.3 registered.
[ 5.333045][ T1] qnx6: QNX6 filesystem 1.0.0 registered.
[ 5.337736][ T1] fuse: init (API version 7.45)
[ 5.344075][ T1] orangefs_debugfs_init: called with debug mask: :none: :0:
[ 5.350293][ T1] orangefs_init: module version upstream loaded
[ 5.355119][ T1] JFS: nTxBlock = 8192, nTxLock = 65536
[ 5.365251][ T1] SGI XFS with ACLs, security attributes, realtime, scrub, repair, quota, no debug enabled
[ 5.377405][ T1] 9p: Installing v9fs 9p2000 file system support
[ 5.382232][ T1] NILFS version 2 loaded
[ 5.385504][ T1] befs: version: 0.9.3
[ 5.388121][ T1] ocfs2: Registered cluster interface o2cb
[ 5.391953][ T1] ocfs2: Registered cluster interface user
[ 5.395885][ T1] OCFS2 User DLM kernel interface loaded
[ 5.408845][ T1] gfs2: GFS2 installed
[ 5.419335][ T1] ceph: loaded (mds proto 32)
[ 5.428781][ T1] NET: Registered PF_ALG protocol family
[ 5.431894][ T1] async_tx: api initialized (async)
[ 5.434333][ T1] Key type asymmetric registered
[ 5.436773][ T1] Asymmetric key parser 'x509' registered
[ 5.440129][ T1] Asymmetric key parser 'pkcs8' registered
[ 5.443024][ T1] Key type pkcs7_test registered
[ 5.446111][ T1] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 239)
[ 5.461472][ T1] io scheduler mq-deadline registered
[ 5.465636][ T1] io scheduler kyber registered
[ 5.469656][ T1] io scheduler bfq registered
[ 5.482630][ T176] kworker/u33:4 (176) used greatest stack depth: 26904 bytes left
[ 5.517634][ T1] ACPI: \_SB_.GSIE: Enabled at IRQ 20
[ 5.528481][ T1] pcieport 0000:00:04.0: PME: Signaling with IRQ 25
[ 5.534899][ T1] pcieport 0000:00:04.0: AER: enabled with IRQ 26
[ 5.541931][ T1] input: Power Button as /devices/platform/LNXPWRBN:00/input/input0
[ 5.546889][ T1] ACPI: button: Power Button [PWRF]
[ 5.963676][ T1] ioatdma: Intel(R) QuickData Technology Driver 5.00
[ 6.008197][ T1] ACPI: \_SB_.GSIF: Enabled at IRQ 21
[ 6.049667][ T1] ACPI: \_SB_.GSIH: Enabled at IRQ 23
[ 6.348011][ T1] N_HDLC line discipline registered with maxframe=4096
[ 6.352201][ T1] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
[ 6.359290][ T1] 00:04: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[ 6.390332][ T1] Non-volatile memory driver v1.3
[ 6.401620][ T1] usbcore: registered new interface driver xillyusb
[ 6.409476][ T1] ACPI: bus type drm_connector registered
[ 6.416850][ T1] [drm] Initialized vgem 1.0.0 for vgem on minor 0
[ 6.420827][ T1] usbcore: registered new interface driver udl
[ 6.426172][ T1] [drm] pci: virtio-vga detected at 0000:00:01.0
[ 6.430771][ T1] virtio-pci 0000:00:01.0: vgaarb: deactivate vga console
[ 6.456693][ T1] Console: switching to colour dummy device 80x25
[ 6.462566][ T1] [drm] features: -virgl +edid -resource_blob -host_visible
[ 6.462578][ T1] [drm] features: -context_init -blob_alignment
[ 6.478536][ T1] [drm] number of scanouts: 1
[ 6.481658][ T1] [drm] number of cap sets: 0
[ 6.488101][ T1] ------------[ cut here ]------------
[ 6.491163][ T1] [PLANE:36:plane-1] pixel format with alpha exposed but blend mode not setup
[ 6.491173][ T1] WARNING: drivers/gpu/drm/drm_mode_config.c:872 at drm_mode_config_validate+0xfb4/0x1be0, CPU#0: swapper/0/1
[ 6.503437][ T1] Modules linked in:
[ 6.506212][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full)
[ 6.510887][ T1] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 6.516049][ T1] RIP: 0010:drm_mode_config_validate+0xfbb/0x1be0
[ 6.520305][ T1] Code: 00 49 8b 57 18 48 89 f8 48 c1 e8 03 0f b6 04 28 84 c0 74 08 3c 03 0f 8e 00 0b 00 00 48 8d 3d bc 0d 81 0b 41 8b b7 c8 00 00 00 <67> 48 0f b9 3a e9 fa fd ff ff 48 8b 5c 24 20 e8 81 9b 3c fc 48 8d
[ 6.533576][ T1] RSP: 0000:ffffc90000047908 EFLAGS: 00010246
[ 6.537738][ T1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 6.542207][ T1] RDX: ffff888027607240 RSI: 0000000000000024 RDI: ffffffff914f8650
[ 6.546273][ T1] RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000
[ 6.550938][ T1] R10: 0000000000000001 R11: 0000000000000000 R12: ffffed1004f5a223
[ 6.555041][ T1] R13: ffffed1004f5a224 R14: 0000000000000001 R15: ffff888027ad1028
[ 6.559717][ T1] FS: 0000000000000000(0000) GS:ffff8880d5b88000(0000) knlGS:0000000000000000
[ 6.564530][ T1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6.568142][ T1] CR2: ffff88817ffff000 CR3: 000000000eb94000 CR4: 0000000000352ef0
[ 6.573562][ T1] Call Trace:
[ 6.575850][ T1] <TASK>
[ 6.577858][ T1] ? queue_work_on+0xb7/0x1e0
[ 6.580881][ T1] drm_dev_register+0x56e/0x7b0
[ 6.583909][ T1] ? aperture_remove_conflicting_pci_devices+0x138/0x1e0
[ 6.588382][ T1] virtio_gpu_probe+0x271/0x360
[ 6.591589][ T1] virtio_dev_probe+0x6a2/0xbe0
[ 6.594462][ T1] ? __pfx_virtio_dev_probe+0x10/0x10
[ 6.597302][ T1] ? kernfs_create_link+0x1bd/0x240
[ 6.600098][ T1] ? kernfs_put+0x3f/0x60
[ 6.602625][ T1] ? sysfs_do_create_link_sd+0xbb/0x140
[ 6.605557][ T1] ? sysfs_create_link+0x68/0xc0
[ 6.608178][ T1] ? __pfx_virtio_dev_probe+0x10/0x10
[ 6.610892][ T1] really_probe+0x241/0xa60
[ 6.613780][ T1] __driver_probe_device+0x210/0x460
[ 6.617121][ T1] ? _raw_spin_unlock_irqrestore+0x52/0x80
[ 6.621118][ T1] driver_probe_device+0x4a/0x140
[ 6.624470][ T1] __driver_attach+0x21f/0x5b0
[ 6.627695][ T1] ? __pfx___driver_attach+0x10/0x10
[ 6.630495][ T1] bus_for_each_dev+0x13e/0x1d0
[ 6.633430][ T1] ? __pfx_bus_for_each_dev+0x10/0x10
[ 6.637053][ T1] ? bus_add_driver+0x2b5/0x5b0
[ 6.640044][ T1] bus_add_driver+0x305/0x5b0
[ 6.643236][ T1] driver_register+0x1e2/0x360
[ 6.646500][ T1] ? __pfx_virtio_gpu_driver_init+0x10/0x10
[ 6.650451][ T1] virtio_gpu_driver_init+0xc9/0x170
[ 6.654024][ T1] do_one_initcall+0x11c/0x6f0
[ 6.657271][ T1] ? __pfx_do_one_initcall+0x10/0x10
[ 6.660832][ T1] ? kernel_init_freeable+0x4ca/0x7b0
[ 6.664437][ T1] kernel_init_freeable+0x6ea/0x7b0
[ 6.668019][ T1] ? __pfx_kernel_init+0x10/0x10
[ 6.671347][ T1] kernel_init+0x21/0x1e0
[ 6.674275][ T1] ? __pfx_kernel_init+0x10/0x10
[ 6.677647][ T1] ret_from_fork+0x730/0xd60
[ 6.680708][ T1] ? __pfx_ret_from_fork+0x10/0x10
[ 6.684171][ T1] ? __switch_to+0x800/0x10f0
[ 6.687421][ T1] ? __pfx_kernel_init+0x10/0x10
[ 6.690358][ T1] ret_from_fork_asm+0x1a/0x30
[ 6.692765][ T1] </TASK>
[ 6.694318][ T1] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 6.697389][ T1] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full)
[ 6.697389][ T1] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 6.704590][ T1] Call Trace:
[ 6.704590][ T1] <TASK>
[ 6.704590][ T1] dump_stack_lvl+0x100/0x190
[ 6.714566][ T1] vpanic+0x553/0x970
[ 6.714566][ T1] ? __pfx_vpanic+0x10/0x10
[ 6.714566][ T1] panic+0xd1/0xe0
[ 6.714566][ T1] ? __pfx_panic+0x10/0x10
[ 6.724557][ T1] check_panic_on_warn.cold+0x19/0x34
[ 6.724557][ T1] ? drm_mode_config_validate+0xfb4/0x1be0
[ 6.724557][ T1] __warn.cold+0x191/0x318
[ 6.724557][ T1] __report_bug+0x30f/0x440
[ 6.734608][ T1] ? drm_mode_config_validate+0xfb4/0x1be0
[ 6.734608][ T1] ? __pfx___report_bug+0x10/0x10
[ 6.734608][ T1] ? __pfx___might_resched+0x10/0x10
[ 6.734608][ T1] ? schedule_timeout+0x161/0x280
[ 6.744572][ T1] report_bug_entry+0xe2/0x290
[ 6.744572][ T1] ? drm_mode_config_validate+0xfbb/0x1be0
[ 6.744572][ T1] handle_bug+0x1cd/0x2a0
[ 6.744572][ T1] exc_invalid_op+0x17/0x50
[ 6.754606][ T1] asm_exc_invalid_op+0x1a/0x20
[ 6.754606][ T1] RIP: 0010:drm_mode_config_validate+0xfbb/0x1be0
[ 6.754606][ T1] Code: 00 49 8b 57 18 48 89 f8 48 c1 e8 03 0f b6 04 28 84 c0 74 08 3c 03 0f 8e 00 0b 00 00 48 8d 3d bc 0d 81 0b 41 8b b7 c8 00 00 00 <67> 48 0f b9 3a e9 fa fd ff ff 48 8b 5c 24 20 e8 81 9b 3c fc 48 8d
[ 6.764562][ T1] RSP: 0000:ffffc90000047908 EFLAGS: 00010246
[ 6.774538][ T1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[ 6.774538][ T1] RDX: ffff888027607240 RSI: 0000000000000024 RDI: ffffffff914f8650
[ 6.784538][ T1] RBP: dffffc0000000000 R08: 0000000000000001 R09: 0000000000000000
[ 6.784538][ T1] R10: 0000000000000001 R11: 0000000000000000 R12: ffffed1004f5a223
[ 6.794650][ T1] R13: ffffed1004f5a224 R14: 0000000000000001 R15: ffff888027ad1028
[ 6.794650][ T1] ? drm_mode_config_validate+0xf76/0x1be0
[ 6.804557][ T1] ? queue_work_on+0xb7/0x1e0
[ 6.804557][ T1] drm_dev_register+0x56e/0x7b0
[ 6.804557][ T1] ? aperture_remove_conflicting_pci_devices+0x138/0x1e0
[ 6.814658][ T1] virtio_gpu_probe+0x271/0x360
[ 6.814658][ T1] virtio_dev_probe+0x6a2/0xbe0
[ 6.814658][ T1] ? __pfx_virtio_dev_probe+0x10/0x10
[ 6.814658][ T1] ? kernfs_create_link+0x1bd/0x240
[ 6.824614][ T1] ? kernfs_put+0x3f/0x60
[ 6.824614][ T1] ? sysfs_do_create_link_sd+0xbb/0x140
[ 6.824614][ T1] ? sysfs_create_link+0x68/0xc0
[ 6.824614][ T1] ? __pfx_virtio_dev_probe+0x10/0x10
[ 6.834654][ T1] really_probe+0x241/0xa60
[ 6.834654][ T1] __driver_probe_device+0x210/0x460
[ 6.834654][ T1] ? _raw_spin_unlock_irqrestore+0x52/0x80
[ 6.844578][ T1] driver_probe_device+0x4a/0x140
[ 6.844578][ T1] __driver_attach+0x21f/0x5b0
[ 6.844578][ T1] ? __pfx___driver_attach+0x10/0x10
[ 6.844578][ T1] bus_for_each_dev+0x13e/0x1d0
[ 6.854598][ T1] ? __pfx_bus_for_each_dev+0x10/0x10
[ 6.854598][ T1] ? bus_add_driver+0x2b5/0x5b0
[ 6.854598][ T1] bus_add_driver+0x305/0x5b0
[ 6.854598][ T1] driver_register+0x1e2/0x360
[ 6.864548][ T1] ? __pfx_virtio_gpu_driver_init+0x10/0x10
[ 6.864548][ T1] virtio_gpu_driver_init+0xc9/0x170
[ 6.874559][ T1] do_one_initcall+0x11c/0x6f0
[ 6.874656][ T1] ? __pfx_do_one_initcall+0x10/0x10
[ 6.874656][ T1] ? kernel_init_freeable+0x4ca/0x7b0
[ 6.884575][ T1] kernel_init_freeable+0x6ea/0x7b0
[ 6.884575][ T1] ? __pfx_kernel_init+0x10/0x10
[ 6.884575][ T1] kernel_init+0x21/0x1e0
[ 6.884575][ T1] ? __pfx_kernel_init+0x10/0x10
[ 6.894652][ T1] ret_from_fork+0x730/0xd60
[ 6.894652][ T1] ? __pfx_ret_from_fork+0x10/0x10
[ 6.894652][ T1] ? __switch_to+0x800/0x10f0
[ 6.904553][ T1] ? __pfx_kernel_init+0x10/0x10
[ 6.904553][ T1] ret_from_fork_asm+0x1a/0x30
[ 6.904553][ T1] </TASK>
[ 6.904553][ T1] Kernel Offset: disabled
[ 6.904553][ T1] 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-build600613633=/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='go1.26.0'
GOWORK=''
PKG_CONFIG='pkg-config'
git status (err=<nil>)
HEAD detached at 1e72964b011
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=1e72964b0111319984575e60f266d1fa0a98abb5 -X github.com/google/syzkaller/prog.gitRevisionDate=20260817-123423" ./sys/syz-sysgen | grep -q false || go install -ldflags="-s -w -X github.com/google/syzkaller/prog.GitRevision=1e72964b0111319984575e60f266d1fa0a98abb5 -X github.com/google/syzkaller/prog.gitRevisionDate=20260817-123423" ./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=1e72964b0111319984575e60f266d1fa0a98abb5 -X github.com/google/syzkaller/prog.gitRevisionDate=20260817-123423" -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=\"1e72964b0111319984575e60f266d1fa0a98abb5\"
/usr/bin/ld: /tmp/ccsT1b7a.o: in function `Connection::Connect(char const*, char const*)':
executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEPKcS1_]+0x386): 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=1226d549580000
Tested on:
commit: 2709dd5a Merge tag 'sched-urgent-2026-08-22' of git://..
git tree: upstream
kernel config: https://syzkaller.appspot.com/x/.config?x=b0978f5ed2905b98
dashboard link: https://syzkaller.appspot.com/bug?extid=675e84fdf3dde67b4946
compiler: gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
patch: https://syzkaller.appspot.com/x/patch.diff?x=11bcc625580000
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2026-08-23 15:15 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
[not found] <20260823145222.16926-1-kartikey406@gmail.com>
2026-08-23 15:15 ` [syzbot] [jffs2?] KASAN: invalid-free in jffs2_free_inode syzbot
2026-08-23 13:33 syzbot
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox