./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor36804476 <...> DUID 00:04:a4:32:67:f0:55:bb:60:fb:9b:a6:3e:57:83:d8:2c:c8 forked to background, child pid 4667 [ 20.617519][ T4668] 8021q: adding VLAN 0 to HW filter on device bond0 [ 20.629681][ T4668] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.158' (ECDSA) to the list of known hosts. execve("./syz-executor36804476", ["./syz-executor36804476"], 0x7ffe8397d6c0 /* 10 vars */) = 0 brk(NULL) = 0x55555732d000 brk(0x55555732dc40) = 0x55555732dc40 arch_prctl(ARCH_SET_FS, 0x55555732d300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor36804476", 4096) = 26 brk(0x55555734ec40) = 0x55555734ec40 brk(0x55555734f000) = 0x55555734f000 mprotect(0x7f5583afa000, 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=0x55555732d5d0) = 4999 ./strace-static-x86_64: Process 4999 attached [pid 4999] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 4999] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4999] setsid() = 1 [pid 4999] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 4999] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 4999] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 4999] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 4999] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 4999] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 4999] unshare(CLONE_NEWNS) = 0 [pid 4999] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 4999] unshare(CLONE_NEWIPC) = 0 [pid 4999] unshare(CLONE_NEWCGROUP) = 0 [pid 4999] unshare(CLONE_NEWUTS) = 0 [pid 4999] unshare(CLONE_SYSVSEM) = 0 [pid 4999] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] write(3, "16777216", 8) = 8 [pid 4999] close(3) = 0 [pid 4999] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] write(3, "536870912", 9) = 9 [pid 4999] close(3) = 0 [pid 4999] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] write(3, "1024", 4) = 4 [pid 4999] close(3) = 0 [pid 4999] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] write(3, "8192", 4) = 4 [pid 4999] close(3) = 0 [pid 4999] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] write(3, "1024", 4) = 4 [pid 4999] close(3) = 0 [pid 4999] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] write(3, "1024", 4) = 4 [pid 4999] close(3) = 0 [pid 4999] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 4999] write(3, "1024 1048576 500 1024", 21) = 21 [pid 4999] close(3) = 0 [pid 4999] getpid() = 1 [pid 4999] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 41 bc e4 ff ff ff e9 38 f9 ff ff 48 89 ef e8 2b 48 d8 fe e9 [ 45.157935][ T10] RSP: 0018:ffffc900000f7020 EFLAGS: 00010293 [ 45.163991][ T10] RAX: 0000000000000000 RBX: ffff888078566000 RCX: 0000000000000000 [ 45.171983][ T10] RDX: ffff888016641dc0 RSI: ffffffff82fece80 RDI: 0000000000000007 [ 45.179969][ T10] RBP: ffff888021f43e00 R08: 0000000000000007 R09: ffffffffffffffff [ 45.187962][ T10] R10: ffffffffffffffff R11: 0000000000000006 R12: ffffffffffffffff [ 45.195986][ T10] R13: 0000000000000000 R14: ffff888021f43e40 R15: 0000000000000000 [ 45.203958][ T10] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 45.212905][ T10] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.219534][ T10] CR2: 0000555b26fea000 CR3: 000000002234b000 CR4: 0000000000350ef0 [ 45.227540][ T10] Call Trace: [ 45.230826][ T10] [ 45.233763][ T10] ? __warn+0xe6/0x390 [ 45.237884][ T10] ? xfs_bmapi_convert_delalloc+0xb60/0xd20 [ 45.243795][ T10] ? report_bug+0x2da/0x500 [ 45.248327][ T10] ? handle_bug+0x3c/0x70 [ 45.252664][ T10] ? exc_invalid_op+0x18/0x50 [ 45.257379][ T10] ? asm_exc_invalid_op+0x1a/0x20 [ 45.262505][ T10] ? xfs_bmapi_convert_delalloc+0xb60/0xd20 [ 45.268418][ T10] ? xfs_bmapi_convert_delalloc+0xb60/0xd20 [ 45.274319][ T10] ? lock_sync+0x190/0x190 [ 45.278760][ T10] ? xfs_bmapi_write+0xbe0/0xbe0 [ 45.283712][ T10] ? find_held_lock+0x2d/0x110 [ 45.288517][ T10] ? xfs_map_blocks+0x5cb/0xf80 [ 45.293402][ T10] ? rcu_is_watching+0x12/0xb0 [ 45.298211][ T10] xfs_map_blocks+0x74c/0xf80 [ 45.302903][ T10] ? xfs_imap_valid.part.0+0x540/0x540 [ 45.308477][ T10] ? print_usage_bug.part.0+0x660/0x660 [ 45.314037][ T10] ? folio_flags.constprop.0+0x53/0x150 [ 45.319603][ T10] ? iomap_page_create+0x1a9/0x3e0 [ 45.324723][ T10] iomap_do_writepage+0xa1e/0x23d0 [ 45.329859][ T10] ? percpu_counter_add_batch+0x199/0x1e0 [ 45.335589][ T10] ? lockdep_hardirqs_on+0x7d/0x100 [ 45.340829][ T10] ? iomap_write_end+0x9e0/0x9e0 [ 45.345806][ T10] ? folio_clear_dirty_for_io+0x10f/0x770 [ 45.351552][ T10] write_cache_pages+0x4a2/0xd30 [ 45.356526][ T10] ? iomap_write_end+0x9e0/0x9e0 [ 45.361490][ T10] ? folio_clear_dirty_for_io+0x770/0x770 [ 45.367238][ T10] ? do_raw_spin_lock+0x124/0x2b0 [ 45.372274][ T10] ? spin_bug+0x1c0/0x1c0 [ 45.376623][ T10] ? lockdep_unlock+0x11b/0x290 [ 45.381566][ T10] iomap_writepages+0x4f/0xb0 [ 45.386261][ T10] xfs_vm_writepages+0x138/0x1c0 [ 45.391210][ T10] ? xfs_vm_read_folio+0x20/0x20 [ 45.396176][ T10] ? spin_bug+0x1c0/0x1c0 [ 45.400516][ T10] ? xfs_vm_read_folio+0x20/0x20 [ 45.405437][ T10] do_writepages+0x1a8/0x640 [ 45.410046][ T10] ? writeback_set_ratelimit+0x150/0x150 [ 45.415681][ T10] ? lock_downgrade+0x690/0x690 [ 45.420647][ T10] ? writeback_sb_inodes+0x3b6/0xe70 [ 45.425961][ T10] ? lock_downgrade+0x690/0x690 [ 45.430798][ T10] __writeback_single_inode+0x121/0xdb0 [ 45.436363][ T10] ? wbc_attach_and_unlock_inode+0x4a3/0x910 [ 45.442355][ T10] writeback_sb_inodes+0x54d/0xe70 [ 45.447494][ T10] ? sync_inode_metadata+0xe0/0xe0 [ 45.452617][ T10] ? rcu_is_watching+0x12/0xb0 [ 45.457423][ T10] ? queue_io+0x386/0x4e0 [ 45.461778][ T10] wb_writeback+0x294/0xa50 [ 45.466340][ T10] ? __writeback_inodes_wb+0x280/0x280 [ 45.471816][ T10] ? lock_downgrade+0x690/0x690 [ 45.476694][ T10] ? mark_held_locks+0x9f/0xe0 [ 45.481468][ T10] ? _raw_spin_unlock_irq+0x23/0x50 [ 45.486691][ T10] wb_workfn+0x2a5/0xfc0 [ 45.490952][ T10] ? inode_wait_for_writeback+0x40/0x40 [ 45.496526][ T10] ? lock_sync+0x190/0x190 [ 45.501034][ T10] ? lock_downgrade+0x690/0x690 [ 45.505918][ T10] ? _raw_spin_unlock_irq+0x23/0x50 [ 45.511136][ T10] process_one_work+0x99a/0x15e0 [ 45.516107][ T10] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 45.521490][ T10] ? spin_bug+0x1c0/0x1c0 [ 45.525840][ T10] ? _raw_spin_lock_irq+0x45/0x50 [ 45.530880][ T10] worker_thread+0x67d/0x10c0 [ 45.535546][ T10] ? process_one_work+0x15e0/0x15e0 [ 45.540768][ T10] kthread+0x344/0x440 [ 45.544842][ T10] ? kthread_complete_and_exit+0x40/0x40 [ 45.550510][ T10] ret_from_fork+0x1f/0x30 [ 45.554946][ T10] [ 45.557992][ T10] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 45.565264][ T10] CPU: 0 PID: 10 Comm: kworker/u4:0 Not tainted 6.4.0-rc7-syzkaller-00194-g8a28a0b6f1a1 #0 [ 45.575219][ T10] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 45.585257][ T10] Workqueue: writeback wb_workfn (flush-7:0) [ 45.591247][ T10] Call Trace: [ 45.594511][ T10] [ 45.597430][ T10] dump_stack_lvl+0xd9/0x150 [ 45.602015][ T10] panic+0x686/0x730 [ 45.605909][ T10] ? panic_smp_self_stop+0xa0/0xa0 [ 45.611021][ T10] ? show_trace_log_lvl+0x284/0x390 [ 45.616245][ T10] ? xfs_bmapi_convert_delalloc+0xb60/0xd20 [ 45.622144][ T10] check_panic_on_warn+0xb1/0xc0 [ 45.627087][ T10] __warn+0xf2/0x390 [ 45.630983][ T10] ? xfs_bmapi_convert_delalloc+0xb60/0xd20 [ 45.636878][ T10] report_bug+0x2da/0x500 [ 45.641205][ T10] handle_bug+0x3c/0x70 [ 45.645350][ T10] exc_invalid_op+0x18/0x50 [ 45.649846][ T10] asm_exc_invalid_op+0x1a/0x20 [ 45.654698][ T10] RIP: 0010:xfs_bmapi_convert_delalloc+0xb60/0xd20 [ 45.661199][ T10] Code: ff ff e8 03 7b 85 fe 8b 94 24 08 01 00 00 48 8b b4 24 10 01 00 00 48 8b 7c 24 70 e8 6a 2e 0c 00 e9 d5 fe ff ff e8 e0 7a 85 fe <0f> 0b 41 bc e4 ff ff ff e9 38 f9 ff ff 48 89 ef e8 2b 48 d8 fe e9 [ 45.680833][ T10] RSP: 0018:ffffc900000f7020 EFLAGS: 00010293 [ 45.686986][ T10] RAX: 0000000000000000 RBX: ffff888078566000 RCX: 0000000000000000 [ 45.694950][ T10] RDX: ffff888016641dc0 RSI: ffffffff82fece80 RDI: 0000000000000007 [ 45.702911][ T10] RBP: ffff888021f43e00 R08: 0000000000000007 R09: ffffffffffffffff [ 45.710870][ T10] R10: ffffffffffffffff R11: 0000000000000006 R12: ffffffffffffffff [ 45.718831][ T10] R13: 0000000000000000 R14: ffff888021f43e40 R15: 0000000000000000 [ 45.726797][ T10] ? xfs_bmapi_convert_delalloc+0xb60/0xd20 [ 45.732698][ T10] ? lock_sync+0x190/0x190 [ 45.737107][ T10] ? xfs_bmapi_write+0xbe0/0xbe0 [ 45.742039][ T10] ? find_held_lock+0x2d/0x110 [ 45.746804][ T10] ? xfs_map_blocks+0x5cb/0xf80 [ 45.751643][ T10] ? rcu_is_watching+0x12/0xb0 [ 45.756519][ T10] xfs_map_blocks+0x74c/0xf80 [ 45.761195][ T10] ? xfs_imap_valid.part.0+0x540/0x540 [ 45.766647][ T10] ? print_usage_bug.part.0+0x660/0x660 [ 45.772188][ T10] ? folio_flags.constprop.0+0x53/0x150 [ 45.777726][ T10] ? iomap_page_create+0x1a9/0x3e0 [ 45.782829][ T10] iomap_do_writepage+0xa1e/0x23d0 [ 45.787939][ T10] ? percpu_counter_add_batch+0x199/0x1e0 [ 45.793654][ T10] ? lockdep_hardirqs_on+0x7d/0x100 [ 45.798850][ T10] ? iomap_write_end+0x9e0/0x9e0 [ 45.803781][ T10] ? folio_clear_dirty_for_io+0x10f/0x770 [ 45.809585][ T10] write_cache_pages+0x4a2/0xd30 [ 45.814513][ T10] ? iomap_write_end+0x9e0/0x9e0 [ 45.819448][ T10] ? folio_clear_dirty_for_io+0x770/0x770 [ 45.825169][ T10] ? do_raw_spin_lock+0x124/0x2b0 [ 45.830187][ T10] ? spin_bug+0x1c0/0x1c0 [ 45.834509][ T10] ? lockdep_unlock+0x11b/0x290 [ 45.839360][ T10] iomap_writepages+0x4f/0xb0 [ 45.844028][ T10] xfs_vm_writepages+0x138/0x1c0 [ 45.848959][ T10] ? xfs_vm_read_folio+0x20/0x20 [ 45.853895][ T10] ? spin_bug+0x1c0/0x1c0 [ 45.858224][ T10] ? xfs_vm_read_folio+0x20/0x20 [ 45.863155][ T10] do_writepages+0x1a8/0x640 [ 45.867776][ T10] ? writeback_set_ratelimit+0x150/0x150 [ 45.873402][ T10] ? lock_downgrade+0x690/0x690 [ 45.878250][ T10] ? writeback_sb_inodes+0x3b6/0xe70 [ 45.883533][ T10] ? lock_downgrade+0x690/0x690 [ 45.888382][ T10] __writeback_single_inode+0x121/0xdb0 [ 45.893924][ T10] ? wbc_attach_and_unlock_inode+0x4a3/0x910 [ 45.899905][ T10] writeback_sb_inodes+0x54d/0xe70 [ 45.905045][ T10] ? sync_inode_metadata+0xe0/0xe0 [ 45.910160][ T10] ? rcu_is_watching+0x12/0xb0 [ 45.915021][ T10] ? queue_io+0x386/0x4e0 [ 45.919371][ T10] wb_writeback+0x294/0xa50 [ 45.923891][ T10] ? __writeback_inodes_wb+0x280/0x280 [ 45.929373][ T10] ? lock_downgrade+0x690/0x690 [ 45.934228][ T10] ? mark_held_locks+0x9f/0xe0 [ 45.938997][ T10] ? _raw_spin_unlock_irq+0x23/0x50 [ 45.944194][ T10] wb_workfn+0x2a5/0xfc0 [ 45.948441][ T10] ? inode_wait_for_writeback+0x40/0x40 [ 45.953986][ T10] ? lock_sync+0x190/0x190 [ 45.958398][ T10] ? lock_downgrade+0x690/0x690 [ 45.963261][ T10] ? _raw_spin_unlock_irq+0x23/0x50 [ 45.968463][ T10] process_one_work+0x99a/0x15e0 [ 45.973401][ T10] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 45.978775][ T10] ? spin_bug+0x1c0/0x1c0 [ 45.983114][ T10] ? _raw_spin_lock_irq+0x45/0x50 [ 45.988136][ T10] worker_thread+0x67d/0x10c0 [ 45.992812][ T10] ? process_one_work+0x15e0/0x15e0 [ 45.998094][ T10] kthread+0x344/0x440 [ 46.002159][ T10] ? kthread_complete_and_exit+0x40/0x40 [ 46.007795][ T10] ret_from_fork+0x1f/0x30 [ 46.012240][ T10] [ 46.016169][ T10] Kernel Offset: disabled [ 46.020550][ T10] Rebooting in 86400 seconds..