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AJvYcCX80On9NR+WkcrmHNrkALplWvkus5BL6G8PEGu/QqZyBogwlGLXVSdf0Y1NuDst5sYY+fwO5Q4ELuz1MDwT@vger.kernel.org X-Gm-Message-State: AOJu0Yy/B9HHa4Dq+pQQxojmtfBeEIzXhxKiCw5yxc6KbwGnHAbiF/b0 521cZ5D/Fx0E6oPnnfIM6kprW2JulePPq6jw/kDAods/XlNygTPjaXwTj/kc+E6JcyRLLNzBwPb mQE0bcF1NQ3OY6qrBqlhhBImI6/CuvSBQeM/ozTbJy7ZtPpE4dZkXa/NYstM= X-Google-Smtp-Source: AGHT+IHp+ng4jmAuiyxMzu2o1RgkqmcL0ou99Y5YNGteOxjZ2j4A+7fJw37D15R9Z3Irt2FTJcsRw/zXw4DgIdN2Wng27aOPdWvI Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3c84:b0:434:7d59:cb21 with SMTP id e9e14a558f8ab-4348c942cd7mr31490845ab.17.1763085782146; Thu, 13 Nov 2025 18:03:02 -0800 (PST) Date: Thu, 13 Nov 2025 18:03:02 -0800 In-Reply-To: <20251114012440.531779-1-mehdi.benhadjkhelifa@gmail.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69168dd6.a70a0220.3124cb.003c.GAE@google.com> Subject: Re: [syzbot] [hfs?] memory leak in hfs_init_fs_context From: syzbot To: frank.li@vivo.com, glaubitz@physik.fu-berlin.de, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, mehdi.benhadjkhelifa@gmail.com, slava@dubeyko.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, syzbot tried to test the proposed patch but the build/boot failed: roller area network core [ 9.749562][ T1] NET: Registered PF_CAN protocol family [ 9.750438][ T1] can: raw protocol [ 9.750982][ T1] can: broadcast manager protocol [ 9.751738][ T1] can: netlink gateway - max_hops=3D1 [ 9.752496][ T1] can: SAE J1939 [ 9.753010][ T1] can: isotp protocol (max_pdu_size 8300) [ 9.754130][ T1] Bluetooth: RFCOMM TTY layer initialized [ 9.754932][ T1] Bluetooth: RFCOMM socket layer initialized [ 9.755826][ T1] Bluetooth: RFCOMM ver 1.11 [ 9.756640][ T1] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 9.757547][ T1] Bluetooth: BNEP filters: protocol multicast [ 9.758499][ T1] Bluetooth: BNEP socket layer initialized [ 9.759429][ T1] Bluetooth: HIDP (Human Interface Emulation) ver 1.2 [ 9.760557][ T1] Bluetooth: HIDP socket layer initialized [ 9.762424][ T1] NET: Registered PF_RXRPC protocol family [ 9.763241][ T1] Key type rxrpc registered [ 9.764425][ T1] Key type rxrpc_s registered [ 9.765548][ T1] NET: Registered PF_KCM protocol family [ 9.766688][ T1] lec:lane_module_init: lec.c: initialized [ 9.767737][ T1] mpoa:atm_mpoa_init: mpc.c: initialized [ 9.768664][ T1] l2tp_core: L2TP core driver, V2.0 [ 9.769494][ T1] l2tp_ppp: PPPoL2TP kernel driver, V2.0 [ 9.770289][ T1] l2tp_ip: L2TP IP encapsulation support (L2TPv3) [ 9.771155][ T1] l2tp_netlink: L2TP netlink interface [ 9.771938][ T1] l2tp_eth: L2TP ethernet pseudowire support (L2TPv3) [ 9.772847][ T1] l2tp_ip6: L2TP IP encapsulation support for IPv6 (L2= TPv3) [ 9.774041][ T1] NET: Registered PF_PHONET protocol family [ 9.774894][ T1] 8021q: 802.1Q VLAN Support v1.8 [ 9.775717][ T1] sctp: Hash tables configured (bind 256/256) [ 9.777068][ T1] NET: Registered PF_RDS protocol family [ 9.778075][ T1] Registered RDS/infiniband transport [ 9.778994][ T1] Registered RDS/tcp transport [ 9.779692][ T1] tipc: Activated (version 2.0.0) [ 9.780699][ T1] NET: Registered PF_TIPC protocol family [ 9.782344][ T1] tipc: Started in single node mode [ 9.784387][ T1] smc: adding smcd device lo without pnetid [ 9.785913][ T1] NET: Registered PF_SMC protocol family [ 9.787625][ T1] 9pnet: Installing 9P2000 support [ 9.789167][ T1] NET: Registered PF_CAIF protocol family [ 9.791371][ T1] NET: Registered PF_IEEE802154 protocol family [ 9.792806][ T1] Key type dns_resolver registered [ 9.794259][ T1] Key type ceph registered [ 9.795165][ T1] libceph: loaded (mon/osd proto 15/24) [ 9.796573][ T1] batman_adv: B.A.T.M.A.N. advanced 2025.4 (compatibil= ity version 15) loaded [ 9.798385][ T1] openvswitch: Open vSwitch switching datapath [ 9.799992][ T1] NET: Registered PF_VSOCK protocol family [ 9.800986][ T1] mpls_gso: MPLS GSO support [ 9.819559][ T1] IPI shorthand broadcast: enabled [ 10.013424][ T1] sched_clock: Marking stable (9984532893, 23793120)->= (10012625265, -4299252) [ 10.021125][ T1] registered taskstats version 1 [ 10.025750][ T1] Loading compiled-in X.509 certificates [ 10.058263][ T1] Loaded X.509 cert 'Build time autogenerated kernel k= ey: ea23c8da7267aa5b617cb0954f38b31bf7cab05f' [ 10.088097][ T1] zswap: loaded using pool 842 [ 10.089329][ T1] Demotion targets for Node 0: null [ 10.090444][ T1] Demotion targets for Node 1: null [ 10.091182][ T1] kmemleak: Kernel memory leak detector initialized (m= em pool available: 15732) [ 10.093020][ T1] Key type .fscrypt registered [ 10.093752][ T1] Key type fscrypt-provisioning registered [ 10.095763][ T1] kAFS: Red Hat AFS client v0.1 registering. [ 10.099093][ T1] Btrfs loaded, assert=3Don, zoned=3Dyes, fsverity=3Dy= es [ 10.100242][ T1] Key type big_key registered [ 10.101201][ T1] Key type encrypted registered [ 10.101898][ T1] AppArmor: AppArmor sha256 policy hashing enabled [ 10.102910][ T1] ima: No TPM chip found, activating TPM-bypass! [ 10.103860][ T1] Loading compiled-in module X.509 certificates [ 10.135501][ T1] Loaded X.509 cert 'Build time autogenerated kernel k= ey: ea23c8da7267aa5b617cb0954f38b31bf7cab05f' [ 10.137680][ T1] ima: Allocated hash algorithm: sha256 [ 10.138660][ T1] ima: No architecture policies found [ 10.139629][ T1] evm: Initialising EVM extended attributes: [ 10.140520][ T1] evm: security.selinux (disabled) [ 10.141260][ T1] evm: security.SMACK64 (disabled) [ 10.142032][ T1] evm: security.SMACK64EXEC (disabled) [ 10.142977][ T1] evm: security.SMACK64TRANSMUTE (disabled) [ 10.143870][ T1] evm: security.SMACK64MMAP (disabled) [ 10.144647][ T1] evm: security.apparmor [ 10.145278][ T1] evm: security.ima [ 10.145794][ T1] evm: security.capability [ 10.146417][ T1] evm: HMAC attrs: 0x1 [ 10.147566][ T1] PM: Magic number: 1:78:913 [ 10.148733][ T1] tty ptyz9: hash matches [ 10.149389][ T1] tty ptywc: hash matches [ 10.150164][ T1] netconsole: network logging started [ 10.151137][ T1] gtp: GTP module loaded (pdp ctx size 128 bytes) [ 10.153632][ T1] rdma_rxe: loaded [ 10.154685][ T1] cfg80211: Loading compiled-in X.509 certificates for= regulatory database [ 10.157212][ T1] Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7' [ 10.159121][ T1] Loaded X.509 cert 'wens: 61c038651aabdcf94bd0ac7ff06= c7248db18c600' [ 10.160513][ T3094] faux_driver regulatory: Direct firmware load for reg= ulatory.db failed with error -2 [ 10.161920][ T3094] faux_driver regulatory: Falling back to sysfs fallba= ck for: regulatory.db [ 10.163450][ T1] clk: Disabling unused clocks [ 10.164221][ T1] ALSA device list: [ 10.164750][ T1] #0: Dummy 1 [ 10.165239][ T1] #1: Loopback 1 [ 10.165745][ T1] #2: Virtual MIDI Card 1 [ 10.167530][ T1] check access for rdinit=3D/init failed: -2, ignoring [ 10.168530][ T1] md: Waiting for all devices to be available before a= utodetect [ 10.169637][ T1] md: If you don't use raid, use raid=3Dnoautodetect [ 10.170520][ T1] md: Autodetecting RAID arrays. [ 10.171192][ T1] md: autorun ... [ 10.171746][ T1] md: ... autorun DONE. [ 10.355755][ T1] EXT4-fs (sda1): orphan cleanup on readonly fs [ 10.357816][ T1] EXT4-fs (sda1): mounted filesystem 4f91c6db-4997-4bb= 4-91b8-7e83a20c1bf1 ro with ordered data mode. Quota mode: none. [ 10.359703][ T1] VFS: Mounted root (ext4 filesystem) readonly on devi= ce 8:1. [ 10.362032][ T1] devtmpfs: mounted [ 10.368420][ T1] Freeing unused kernel image (initmem) memory: 16140K [ 10.370400][ T1] Write protecting the kernel read-only data: 94208k [ 10.374836][ T1] Freeing unused kernel image (text/rodata gap) memory= : 1156K [ 10.377014][ T1] Freeing unused kernel image (rodata/data gap) memory= : 964K [ 10.479434][ T1] x86/mm: Checked W+X mappings: passed, no W+X pages f= ound. [ 10.481095][ T1] x86/mm: Checking user space page tables [ 10.573323][ T1] x86/mm: Checked W+X mappings: passed, no W+X pages f= ound. [ 10.574604][ T1] Failed to set sysctl parameter 'kernel.hung_task_all= _cpu_backtrace=3D1': parameter not found [ 10.578671][ T1] Failed to set sysctl parameter 'max_rcu_stall_to_pan= ic=3D1': parameter not found [ 10.580258][ T1] Run /sbin/init as init process [ 10.915515][ T5147] mount (5147) used greatest stack depth: 12376 bytes = left [ 10.959767][ T5148] EXT4-fs (sda1): re-mounted 4f91c6db-4997-4bb4-91b8-7= e83a20c1bf1 r/w. [ 10.962072][ T5148] mount (5148) used greatest stack depth: 11720 bytes = left mount: mounting devtmpfs on /dev failed: Device or resource busy mount: mounting smackfs on /sys/fs/smackfs failed: No such file or director= y mount: mounting selinuxfs on /sys/fs/selinux failed: No such file or direct= ory [ 11.009468][ T5152] mount (5152) used greatest stack depth: 10488 bytes = left Starting syslogd: OK Starting acpid: OK Starting klogd: OK Running sysctl: OK Populating /dev using udev: [ 11.409279][ T5182] udevd[5182]: starting ve= rsion 3.2.14 [ 11.616899][ T5183] udevd[5183]: starting eudev-3.2.14 [ 11.618261][ T5182] udevd (5182) used greatest stack depth: 9464 bytes l= eft done Starting system message bus: done Starting iptables: OK Starting network: OK Starting dhcpcd... dhcpcd-10.2.0 starting dev: loaded udev no interfaces have a carrier [ 16.257231][ T5478] 8021q: adding VLAN 0 to HW filter on device bond0 [ 16.264394][ T5549] Oops: general protection fault, probably for non-can= onical address 0x6564752f62696c4f: 0000 [#1] SMP PTI [ 16.265069][ T5478] eql: remember to turn off Van-Jacobson compression o= n your slave devices [ 16.275854][ T5549] CPU: 1 UID: 0 PID: 5549 Comm: rcS Not tainted syzkal= ler #0 PREEMPT(full)=20 [ 16.275872][ T5549] Hardware name: Google Google Compute Engine/Google C= ompute Engine, BIOS Google 10/25/2025 [ 16.275881][ T5549] RIP: 0010:tomoyo_get_name+0xa9/0x270 [ 16.308751][ T5549] Code: 0f 85 6a 01 00 00 e8 b6 b1 ec fe 89 d8 48 c1 e= 3 04 48 8b 9b c0 1a 85 89 48 89 04 24 49 39 dd 0f 84 b2 00 00 00 e8 97 b1 e= c fe <44> 8b 7b 20 89 ee 44 89 ff e8 39 a9 ec fe 41 39 ef 0f 85 85 00 00 [ 16.328351][ T5549] RSP: 0018:ffffc90002807c28 EFLAGS: 00010293 [ 16.334412][ T5549] RAX: 0000000000000000 RBX: 6564752f62696c2f RCX: fff= fffff8274e487 [ 16.342387][ T5549] RDX: ffff888102fdb480 RSI: ffffffff8274e479 RDI: 000= 0000000000004 [ 16.350405][ T5549] RBP: 000000000367e4aa R08: 0000000000000004 R09: 000= 0000061736c61 [ 16.358373][ T5549] R10: 000000000367e4aa R11: 0000000000000000 R12: fff= f88810984c000 [ 16.366511][ T5549] R13: ffffffff898520c0 R14: 0000000000000038 R15: 000= 0000061736c61 [ 16.374647][ T5549] FS: 00007fdabe210c80(0000) GS:ffff8881b26c2000(0000= ) knlGS:0000000000000000 [ 16.383729][ T5549] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 16.390297][ T5549] CR2: 00007fec51a9a7b8 CR3: 000000010966c000 CR4: 000= 00000003526f0 [ 16.398302][ T5549] Call Trace: [ 16.401564][ T5549] [ 16.404607][ T5549] ? tomoyo_assign_namespace+0x84/0x1d0 [ 16.410156][ T5549] tomoyo_assign_domain+0x249/0x490 [ 16.415496][ T5549] tomoyo_find_next_domain+0x4d1/0xdb0 [ 16.420969][ T5549] tomoyo_bprm_check_security+0x72/0xc0 [ 16.426508][ T5549] security_bprm_check+0x1b9/0x1e0 [ 16.431605][ T5549] bprm_execve+0x381/0x830 [ 16.436100][ T5549] do_execveat_common.isra.0+0x262/0x2e0 [ 16.441713][ T5549] __x64_sys_execve+0x3d/0x50 [ 16.446381][ T5549] do_syscall_64+0xa4/0xfa0 [ 16.450879][ T5549] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 16.456743][ T5549] RIP: 0033:0x7fdabe3ab107 [ 16.461148][ T5549] Code: 0f 00 64 c7 00 07 00 00 00 b8 ff ff ff ff c9 c= 3 0f 1f 00 48 8b 05 a9 ee 0f 00 48 8b 10 e9 01 00 00 00 90 b8 3b 00 00 00 0= f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d c1 ec 0f 00 f7 d8 64 89 01 48 [ 16.480773][ T5549] RSP: 002b:00007fffd1b40b78 EFLAGS: 00000206 ORIG_RAX= : 000000000000003b [ 16.489522][ T5549] RAX: ffffffffffffffda RBX: 000055ca63b60d30 RCX: 000= 07fdabe3ab107 [ 16.497466][ T5549] RDX: 000055ca63b57bb8 RSI: 000055ca63b60d30 RDI: 000= 055ca63b60ce8 [ 16.505417][ T5549] RBP: 000055ca63b60ce8 R08: 0000000000000000 R09: 000= 0000000000000 [ 16.513806][ T5549] R10: 0000000000000008 R11: 0000000000000206 R12: 000= 055ca63b57bb8 [ 16.521843][ T5549] R13: 00007fdabe570e8b R14: 000055ca63b57bb8 R15: 000= 0000000000000 [ 16.529794][ T5549] [ 16.532798][ T5549] Modules linked in: [ 16.536769][ T5549] ---[ end trace 0000000000000000 ]--- [ 16.542535][ T5549] RIP: 0010:tomoyo_get_name+0xa9/0x270 [ 16.548074][ T5549] Code: 0f 85 6a 01 00 00 e8 b6 b1 ec fe 89 d8 48 c1 e= 3 04 48 8b 9b c0 1a 85 89 48 89 04 24 49 39 dd 0f 84 b2 00 00 00 e8 97 b1 e= c fe <44> 8b 7b 20 89 ee 44 89 ff e8 39 a9 ec fe 41 39 ef 0f 85 85 00 00 [ 16.567885][ T5549] RSP: 0018:ffffc90002807c28 EFLAGS: 00010293 [ 16.574145][ T5549] RAX: 0000000000000000 RBX: 6564752f62696c2f RCX: fff= fffff8274e487 [ 16.582126][ T5549] RDX: ffff888102fdb480 RSI: ffffffff8274e479 RDI: 000= 0000000000004 [ 16.590202][ T5549] RBP: 000000000367e4aa R08: 0000000000000004 R09: 000= 0000061736c61 [ 16.598259][ T5549] R10: 000000000367e4aa R11: 0000000000000000 R12: fff= f88810984c000 [ 16.606251][ T5549] R13: ffffffff898520c0 R14: 0000000000000038 R15: 000= 0000061736c61 [ 16.614332][ T5549] FS: 00007fdabe210c80(0000) GS:ffff8881b26c2000(0000= ) knlGS:0000000000000000 [ 16.623328][ T5549] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 16.629908][ T5549] CR2: 00007fec51a9a7b8 CR3: 000000010966c000 CR4: 000= 00000003526f0 [ 16.637983][ T5549] Kernel panic - not syncing: Fatal exception [ 16.644472][ T5549] Kernel Offset: disabled [ 16.648952][ T5549] Rebooting in 86400 seconds.. syzkaller build log: go env (err=3D) AR=3D'ar' CC=3D'gcc' CGO_CFLAGS=3D'-O2 -g' CGO_CPPFLAGS=3D'' CGO_CXXFLAGS=3D'-O2 -g' CGO_ENABLED=3D'1' CGO_FFLAGS=3D'-O2 -g' CGO_LDFLAGS=3D'-O2 -g' CXX=3D'g++' GCCGO=3D'gccgo' GO111MODULE=3D'auto' GOAMD64=3D'v1' GOARCH=3D'amd64' GOAUTH=3D'netrc' GOBIN=3D'' GOCACHE=3D'/syzkaller/.cache/go-build' GOCACHEPROG=3D'' GODEBUG=3D'' GOENV=3D'/syzkaller/.config/go/env' GOEXE=3D'' GOEXPERIMENT=3D'' GOFIPS140=3D'off' GOFLAGS=3D'' GOGCCFLAGS=3D'-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=3D0= -ffile-prefix-map=3D/tmp/go-build3937347293=3D/tmp/go-build -gno-record-gc= c-switches' GOHOSTARCH=3D'amd64' GOHOSTOS=3D'linux' GOINSECURE=3D'' GOMOD=3D'/syzkaller/jobs-2/linux/gopath/src/github.com/google/syzkaller/go.= mod' GOMODCACHE=3D'/syzkaller/jobs-2/linux/gopath/pkg/mod' GONOPROXY=3D'' GONOSUMDB=3D'' GOOS=3D'linux' GOPATH=3D'/syzkaller/jobs-2/linux/gopath' GOPRIVATE=3D'' GOPROXY=3D'https://proxy.golang.org,direct' GOROOT=3D'/usr/local/go' GOSUMDB=3D'sum.golang.org' GOTELEMETRY=3D'local' GOTELEMETRYDIR=3D'/syzkaller/.config/go/telemetry' GOTMPDIR=3D'' GOTOOLCHAIN=3D'auto' GOTOOLDIR=3D'/usr/local/go/pkg/tool/linux_amd64' GOVCS=3D'' GOVERSION=3D'go1.24.4' GOWORK=3D'' PKG_CONFIG=3D'pkg-config' git status (err=3D) 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/contribut= ing.md#using-syz-env go list -f '{{.Stale}}' -ldflags=3D"-s -w -X github.com/google/syzkaller/pr= og.GitRevision=3D4e1406b4defac0e2a9d9424c70706f79a7750cf3 -X github.com/goo= gle/syzkaller/prog.gitRevisionDate=3D20251106-151142" ./sys/syz-sysgen | g= rep -q false || go install -ldflags=3D"-s -w -X github.com/google/syzkaller= /prog.GitRevision=3D4e1406b4defac0e2a9d9424c70706f79a7750cf3 -X github.com/= google/syzkaller/prog.gitRevisionDate=3D20251106-151142" ./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/contribut= ing.md#using-syz-env bin/syz-sysgen touch .descriptions GOOS=3Dlinux GOARCH=3Damd64 go build -ldflags=3D"-s -w -X github.com/google= /syzkaller/prog.GitRevision=3D4e1406b4defac0e2a9d9424c70706f79a7750cf3 -X g= ithub.com/google/syzkaller/prog.gitRevisionDate=3D20251106-151142" -o ./bi= n/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 -Wfr= ame-larger-than=3D16384 -Wno-stringop-overflow -Wno-array-bounds -Wno-forma= t-overflow -Wno-unused-but-set-variable -Wno-unused-command-line-argument -= static-pie -std=3Dc++17 -I. -Iexecutor/_include -DGOOS_linux=3D1 -DGOARCH= _amd64=3D1 \ -DHOSTGOOS_linux=3D1 -DGIT_REVISION=3D\"4e1406b4defac0e2a9d9424c70706f79a7= 750cf3\" /usr/bin/ld: /tmp/cctPnRU9.o: in function `Connection::Connect(char const*,= char const*)': executor.cc:(.text._ZN10Connection7ConnectEPKcS1_[_ZN10Connection7ConnectEP= KcS1_]+0x104): warning: Using 'gethostbyname' in statically linked applicat= ions requires at runtime the shared libraries from the glibc version used f= or 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=3D16bad7cd980000 Tested on: commit: 6da43bbe Merge tag 'vfio-v6.18-rc6' of https://github... git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=3Dcb128cd5cb43980= 9 dashboard link: https://syzkaller.appspot.com/bug?extid=3Dad45f827c88778ff7= df6 compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils= for Debian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=3D11f2b60a5800= 00