./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3604681500 <...> Warning: Permanently added '10.128.1.94' (ED25519) to the list of known hosts. execve("./syz-executor3604681500", ["./syz-executor3604681500"], 0x7ffd17daf3a0 /* 10 vars */) = 0 brk(NULL) = 0x55559552d000 brk(0x55559552dd00) = 0x55559552dd00 arch_prctl(ARCH_SET_FS, 0x55559552d380) = 0 set_tid_address(0x55559552d650) = 5084 set_robust_list(0x55559552d660, 24) = 0 rseq(0x55559552dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3604681500", 4096) = 28 getrandom("\xe1\xc8\x4f\xe3\xe1\x68\xcd\xf6", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55559552dd00 brk(0x55559554ed00) = 0x55559554ed00 brk(0x55559554f000) = 0x55559554f000 mprotect(0x7f7804f67000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55559552d650) = 5085 ./strace-static-x86_64: Process 5085 attached [pid 5085] set_robust_list(0x55559552d660, 24) = 0 [pid 5085] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5085] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5085] setsid() = 1 [pid 5085] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5085] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5085] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5085] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5085] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5085] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5085] unshare(CLONE_NEWNS) = 0 [pid 5085] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5085] unshare(CLONE_NEWIPC) = 0 [pid 5085] unshare(CLONE_NEWCGROUP) = 0 [pid 5085] unshare(CLONE_NEWUTS) = 0 [pid 5085] unshare(CLONE_SYSVSEM) = 0 [pid 5085] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5085] write(3, "16777216", 8) = 8 [pid 5085] close(3) = 0 [pid 5085] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5085] write(3, "536870912", 9) = 9 [pid 5085] close(3) = 0 [pid 5085] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5085] write(3, "1024", 4) = 4 [pid 5085] close(3) = 0 [pid 5085] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5085] write(3, "8192", 4) = 4 [pid 5085] close(3) = 0 [pid 5085] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5085] write(3, "1024", 4) = 4 [pid 5085] close(3) = 0 [pid 5085] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5085] write(3, "1024", 4) = 4 [pid 5085] close(3) = 0 [pid 5085] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5085] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5085] close(3) = 0 [pid 5085] getpid() = 1 [pid 5085] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 54.398982][ T62] dump_stack_lvl+0x241/0x360 [ 54.403656][ T62] ? __pfx_dump_stack_lvl+0x10/0x10 [ 54.408842][ T62] ? __pfx__printk+0x10/0x10 [ 54.413425][ T62] ? _printk+0xd5/0x120 [ 54.417568][ T62] ? __virt_addr_valid+0x183/0x520 [ 54.422665][ T62] ? __virt_addr_valid+0x183/0x520 [ 54.427760][ T62] print_report+0x169/0x550 [ 54.432250][ T62] ? __virt_addr_valid+0x183/0x520 [ 54.437346][ T62] ? __virt_addr_valid+0x183/0x520 [ 54.442445][ T62] ? __virt_addr_valid+0x44e/0x520 [ 54.447540][ T62] ? __phys_addr+0xba/0x170 [ 54.452028][ T62] ? fsnotify+0x2a4/0x1f70 [ 54.456432][ T62] kasan_report+0x143/0x180 [ 54.460924][ T62] ? fsnotify+0x2a4/0x1f70 [ 54.465330][ T62] fsnotify+0x2a4/0x1f70 [ 54.469565][ T62] ? __pfx_vprintk_emit+0x10/0x10 [ 54.474589][ T62] ? _printk+0xd5/0x120 [ 54.478735][ T62] ? __pfx_fsnotify+0x10/0x10 [ 54.483409][ T62] ? rcu_is_watching+0x15/0xb0 [ 54.488172][ T62] __ext4_error+0x255/0x3b0 [ 54.492672][ T62] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 54.498644][ T62] ? __pfx___ext4_error+0x10/0x10 [ 54.503663][ T62] ? dquot_release+0x173/0x5c0 [ 54.508420][ T62] ext4_release_dquot+0x326/0x450 [ 54.513437][ T62] quota_release_workfn+0x39f/0x650 [ 54.518629][ T62] ? __pfx_quota_release_workfn+0x10/0x10 [ 54.524343][ T62] ? process_scheduled_works+0x945/0x1830 [ 54.530050][ T62] process_scheduled_works+0xa2c/0x1830 [ 54.535595][ T62] ? __pfx_process_scheduled_works+0x10/0x10 [ 54.541566][ T62] ? assign_work+0x364/0x3d0 [ 54.546145][ T62] worker_thread+0x86d/0xd70 [ 54.550729][ T62] ? __kthread_parkme+0x169/0x1d0 [ 54.555743][ T62] ? __pfx_worker_thread+0x10/0x10 [ 54.560847][ T62] kthread+0x2f0/0x390 [ 54.564908][ T62] ? __pfx_worker_thread+0x10/0x10 [ 54.570010][ T62] ? __pfx_kthread+0x10/0x10 [ 54.574606][ T62] ret_from_fork+0x4b/0x80 [ 54.579027][ T62] ? __pfx_kthread+0x10/0x10 [ 54.583612][ T62] ret_from_fork_asm+0x1a/0x30 [ 54.588374][ T62] [ 54.591377][ T62] [ 54.593683][ T62] Allocated by task 5085: [ 54.598002][ T62] kasan_save_track+0x3f/0x80 [ 54.602675][ T62] __kasan_kmalloc+0x98/0xb0 [ 54.607248][ T62] kmalloc_trace_noprof+0x19c/0x2b0 [ 54.612432][ T62] fsnotify_add_mark_locked+0x3b2/0xe60 [ 54.617979][ T62] fanotify_add_mark+0xbbd/0x1330 [ 54.622996][ T62] do_fanotify_mark+0xbcc/0xd90 [ 54.627838][ T62] __x64_sys_fanotify_mark+0xb5/0xd0 [ 54.633108][ T62] do_syscall_64+0xf5/0x240 [ 54.637598][ T62] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 54.643481][ T62] [ 54.645793][ T62] Freed by task 5085: [ 54.649756][ T62] kasan_save_track+0x3f/0x80 [ 54.654423][ T62] kasan_save_free_info+0x40/0x50 [ 54.659435][ T62] poison_slab_object+0xe0/0x150 [ 54.664356][ T62] __kasan_slab_free+0x37/0x60 [ 54.669104][ T62] kfree+0x149/0x350 [ 54.672987][ T62] fsnotify_sb_delete+0x686/0x6f0 [ 54.677998][ T62] generic_shutdown_super+0xa5/0x2d0 [ 54.683275][ T62] kill_block_super+0x44/0x90 [ 54.687938][ T62] ext4_kill_sb+0x68/0xa0 [ 54.692254][ T62] deactivate_locked_super+0xc4/0x130 [ 54.697615][ T62] cleanup_mnt+0x426/0x4c0 [ 54.702020][ T62] task_work_run+0x24f/0x310 [ 54.706605][ T62] do_exit+0xa1b/0x27e0 [ 54.710749][ T62] do_group_exit+0x207/0x2c0 [ 54.715332][ T62] __x64_sys_exit_group+0x3f/0x40 [ 54.720348][ T62] do_syscall_64+0xf5/0x240 [ 54.724837][ T62] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 54.730720][ T62] [ 54.733030][ T62] The buggy address belongs to the object at ffff88802f1dce80 [ 54.733030][ T62] which belongs to the cache kmalloc-32 of size 32 [ 54.746893][ T62] The buggy address is located 0 bytes inside of [ 54.746893][ T62] freed 32-byte region [ffff88802f1dce80, ffff88802f1dcea0) [ 54.760411][ T62] [ 54.762722][ T62] The buggy address belongs to the physical page: [ 54.769114][ T62] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2f1dc [ 54.777861][ T62] flags: 0xfff80000000000(node=0|zone=1|lastcpupid=0xfff) [ 54.784951][ T62] page_type: 0xffffefff(slab) [ 54.789614][ T62] raw: 00fff80000000000 ffff888015041500 ffffea000096b540 dead000000000004 [ 54.798178][ T62] raw: 0000000000000000 0000000080400040 00000001ffffefff 0000000000000000 [ 54.806742][ T62] page dumped because: kasan: bad access detected [ 54.813138][ T62] page_owner tracks the page as allocated [ 54.818837][ T62] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY), pid 1, tgid -625457465 (swapper/0), ts 1, free_ts 0 [ 54.835416][ T62] post_alloc_hook+0x1f3/0x230 [ 54.840179][ T62] get_page_from_freelist+0x2ce2/0x2d90 [ 54.845731][ T62] __alloc_pages_noprof+0x256/0x6c0 [ 54.850920][ T62] alloc_slab_page+0x5f/0x120 [ 54.855581][ T62] allocate_slab+0x5a/0x2e0 [ 54.860068][ T62] ___slab_alloc+0xcd1/0x14b0 [ 54.864734][ T62] __slab_alloc+0x58/0xa0 [ 54.869052][ T62] kmalloc_node_track_caller_noprof+0x286/0x440 [ 54.875280][ T62] kstrdup+0x3a/0x80 [ 54.879165][ T62] kobject_set_name_vargs+0x61/0x120 [ 54.884435][ T62] kobject_init_and_add+0xde/0x190 [ 54.889533][ T62] sysfs_slab_add+0x7a/0x290 [ 54.894115][ T62] slab_sysfs_init+0x66/0x170 [ 54.898801][ T62] do_one_initcall+0x248/0x880 [ 54.903554][ T62] do_initcall_level+0x157/0x210 [ 54.908481][ T62] do_initcalls+0x3f/0x80 [ 54.912795][ T62] page_owner free stack trace missing [ 54.918143][ T62] [ 54.920451][ T62] Memory state around the buggy address: [ 54.926065][ T62] ffff88802f1dcd80: 00 00 05 fc fc fc fc fc 00 00 00 00 fc fc fc fc [ 54.934111][ T62] ffff88802f1dce00: 00 00 00 06 fc fc fc fc fa fb fb fb fc fc fc fc [ 54.942154][ T62] >ffff88802f1dce80: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 54.950198][ T62] ^ [ 54.954248][ T62] ffff88802f1dcf00: fa fb fb fb fc fc fc fc fa fb fb fb fc fc fc fc [ 54.962296][ T62] ffff88802f1dcf80: fa fb fb fb fc fc fc fc 00 00 00 fc fc fc fc fc [ 54.970340][ T62] ================================================================== [ 54.979441][ T62] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 54.986651][ T62] CPU: 1 PID: 62 Comm: kworker/u8:4 Not tainted 6.9.0-rc3-next-20240410-syzkaller #0 [ 54.996105][ T62] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 55.006149][ T62] Workqueue: events_unbound quota_release_workfn [ 55.012475][ T62] Call Trace: [ 55.015743][ T62] [ 55.018666][ T62] dump_stack_lvl+0x241/0x360 [ 55.023332][ T62] ? __pfx_dump_stack_lvl+0x10/0x10 [ 55.028535][ T62] ? __pfx__printk+0x10/0x10 [ 55.033114][ T62] ? preempt_schedule+0xe1/0xf0 [ 55.037953][ T62] ? vscnprintf+0x5d/0x90 [ 55.042278][ T62] panic+0x349/0x860 [ 55.046161][ T62] ? check_panic_on_warn+0x21/0xb0 [ 55.051265][ T62] ? __pfx_panic+0x10/0x10 [ 55.055669][ T62] ? _raw_spin_unlock_irqrestore+0x130/0x140 [ 55.061638][ T62] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 55.067953][ T62] ? print_report+0x502/0x550 [ 55.072622][ T62] check_panic_on_warn+0x86/0xb0 [ 55.077551][ T62] ? fsnotify+0x2a4/0x1f70 [ 55.081958][ T62] end_report+0x77/0x160 [ 55.086191][ T62] kasan_report+0x154/0x180 [ 55.090682][ T62] ? fsnotify+0x2a4/0x1f70 [ 55.095091][ T62] fsnotify+0x2a4/0x1f70 [ 55.099329][ T62] ? __pfx_vprintk_emit+0x10/0x10 [ 55.104348][ T62] ? _printk+0xd5/0x120 [ 55.108490][ T62] ? __pfx_fsnotify+0x10/0x10 [ 55.113158][ T62] ? rcu_is_watching+0x15/0xb0 [ 55.117916][ T62] __ext4_error+0x255/0x3b0 [ 55.122413][ T62] ? __pfx___mutex_unlock_slowpath+0x10/0x10 [ 55.128383][ T62] ? __pfx___ext4_error+0x10/0x10 [ 55.133402][ T62] ? dquot_release+0x173/0x5c0 [ 55.138159][ T62] ext4_release_dquot+0x326/0x450 [ 55.143176][ T62] quota_release_workfn+0x39f/0x650 [ 55.148369][ T62] ? __pfx_quota_release_workfn+0x10/0x10 [ 55.154081][ T62] ? process_scheduled_works+0x945/0x1830 [ 55.159786][ T62] process_scheduled_works+0xa2c/0x1830 [ 55.165334][ T62] ? __pfx_process_scheduled_works+0x10/0x10 [ 55.171303][ T62] ? assign_work+0x364/0x3d0 [ 55.175882][ T62] worker_thread+0x86d/0xd70 [ 55.180468][ T62] ? __kthread_parkme+0x169/0x1d0 [ 55.185500][ T62] ? __pfx_worker_thread+0x10/0x10 [ 55.190603][ T62] kthread+0x2f0/0x390 [ 55.194661][ T62] ? __pfx_worker_thread+0x10/0x10 [ 55.199764][ T62] ? __pfx_kthread+0x10/0x10 [ 55.204343][ T62] ret_from_fork+0x4b/0x80 [ 55.208758][ T62] ? __pfx_kthread+0x10/0x10 [ 55.213354][ T62] ret_from_fork_asm+0x1a/0x30 [ 55.218115][ T62] [ 55.221296][ T62] Kernel Offset: disabled [ 55.225605][ T62] Rebooting in 86400 seconds..