./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1775860400 <...> forked to background, child pid 4650 [ 35.287487][ T4651] 8021q: adding VLAN 0 to HW filter on device bond0 [ 35.306025][ T4651] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: [ 35.791445][ T4746] sshd (4746) used greatest stack depth: 22392 bytes left OK syzkaller Warning: Permanently added '10.128.0.103' (ECDSA) to the list of known hosts. execve("./syz-executor1775860400", ["./syz-executor1775860400"], 0x7ffe9a192ec0 /* 10 vars */) = 0 brk(NULL) = 0x555555c62000 brk(0x555555c62c40) = 0x555555c62c40 arch_prctl(ARCH_SET_FS, 0x555555c62300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1775860400", 4096) = 28 brk(0x555555c83c40) = 0x555555c83c40 brk(0x555555c84000) = 0x555555c84000 mprotect(0x7f526019f000, 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./strace-static-x86_64: Process 5077 attached , child_tidptr=0x555555c625d0) = 5077 [pid 5077] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5077] setsid() = 1 [pid 5077] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5077] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5077] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5077] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5077] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5077] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5077] unshare(CLONE_NEWNS) = 0 [pid 5077] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5077] unshare(CLONE_NEWIPC) = 0 [pid 5077] unshare(CLONE_NEWCGROUP) = 0 [pid 5077] unshare(CLONE_NEWUTS) = 0 [pid 5077] unshare(CLONE_SYSVSEM) = 0 [pid 5077] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5077] write(3, "16777216", 8) = 8 [pid 5077] close(3) = 0 [pid 5077] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5077] write(3, "536870912", 9) = 9 [pid 5077] close(3) = 0 [pid 5077] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5077] write(3, "1024", 4) = 4 [pid 5077] close(3) = 0 [pid 5077] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5077] write(3, "8192", 4) = 4 [pid 5077] close(3) = 0 [pid 5077] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5077] write(3, "1024", 4) = 4 [pid 5077] close(3) = 0 [pid 5077] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5077] write(3, "1024", 4) = 4 [pid 5077] close(3) = 0 [pid 5077] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5077] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5077] close(3) = 0 [pid 5077] getpid() = 1 [pid 5077] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e9 15 fe ff ff 41 bd fb ff ff ff e9 58 fa ff ff 4c 89 f7 e8 [ 61.164326][ T9] RSP: 0018:ffffc900000e74a0 EFLAGS: 00010293 [ 61.170540][ T9] RAX: 0000000000000000 RBX: 1ffff9200001ce96 RCX: 0000000000000000 [ 61.178607][ T9] RDX: ffff88813fe48000 RSI: ffffffff8247258d RDI: 0000000000000005 [ 61.186704][ T9] RBP: ffff88801e8101b0 R08: 0000000000000005 R09: 00000000000000f7 [ 61.194726][ T9] R10: 0000000000000058 R11: 0000000000000000 R12: 0000000000000058 [ 61.202838][ T9] R13: 0000000000000000 R14: ffff88801e810140 R15: ffffc900000e74e0 [ 61.210891][ T9] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 61.219934][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.226747][ T9] CR2: 00007f52601a3140 CR3: 000000002887b000 CR4: 00000000003506f0 [ 61.234831][ T9] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.242920][ T9] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.250957][ T9] Call Trace: [ 61.254242][ T9] [ 61.257282][ T9] ? hfsplus_cat_read_inode+0x9c0/0x9c0 [ 61.262908][ T9] ? find_held_lock+0x2d/0x110 [ 61.267756][ T9] ? hfsplus_ext_write_extent+0xcb/0x200 [ 61.273442][ T9] ? lock_downgrade+0x6e0/0x6e0 [ 61.278380][ T9] ? rcu_read_lock_sched_held+0x3e/0x70 [ 61.283955][ T9] ? trace_contention_end+0x173/0x1e0 [ 61.289386][ T9] ? __mutex_lock+0x231/0x1360 [ 61.294285][ T9] ? __mutex_unlock_slowpath+0x157/0x5e0 [ 61.300032][ T9] ? wait_for_completion_io_timeout+0x20/0x20 [ 61.306162][ T9] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 61.312156][ T9] ? do_raw_spin_lock+0x124/0x2b0 [ 61.317324][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 61.322298][ T9] ? lock_acquire+0x32/0xc0 [ 61.326897][ T9] ? do_writepages+0x3fe/0x640 [ 61.331696][ T9] ? hfsplus_ext_write_extent+0xcb/0x200 [ 61.337464][ T9] ? hfsplus_ext_cmp_key+0x300/0x300 [ 61.342813][ T9] ? __writeback_single_inode+0x323/0x14d0 [ 61.348729][ T9] ? lock_downgrade+0x6e0/0x6e0 [ 61.353715][ T9] ? do_raw_spin_lock+0x124/0x2b0 [ 61.359051][ T9] hfsplus_write_inode+0x93/0x4e0 [ 61.364135][ T9] __writeback_single_inode+0xd38/0x14d0 [ 61.369854][ T9] writeback_sb_inodes+0x54d/0xfb0 [ 61.375011][ T9] ? sync_inode_metadata+0xe0/0xe0 [ 61.380262][ T9] ? rcu_read_lock_sched_held+0x3e/0x70 [ 61.385926][ T9] ? queue_io+0x427/0x620 [ 61.390306][ T9] wb_writeback+0x2c5/0xdd0 [ 61.394847][ T9] ? __writeback_inodes_wb+0x280/0x280 [ 61.400420][ T9] wb_workfn+0x2d4/0xdc0 [ 61.404772][ T9] ? inode_wait_for_writeback+0x40/0x40 [ 61.410385][ T9] ? lock_release+0x810/0x810 [ 61.415084][ T9] ? process_one_work+0x8a1/0x1750 [ 61.420342][ T9] ? rcu_read_lock_sched_held+0x3e/0x70 [ 61.425974][ T9] ? trace_lock_acquire+0x1f1/0x290 [ 61.431198][ T9] process_one_work+0x9bf/0x1750 [ 61.436250][ T9] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 61.441669][ T9] ? rcu_read_lock_sched_held+0x3e/0x70 [ 61.447325][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 61.452314][ T9] ? lock_acquire+0x32/0xc0 [ 61.456939][ T9] ? worker_thread+0x16d/0x1090 [ 61.461822][ T9] worker_thread+0x669/0x1090 [ 61.466577][ T9] ? process_one_work+0x1750/0x1750 [ 61.471798][ T9] kthread+0x2e8/0x3a0 [ 61.475937][ T9] ? kthread_complete_and_exit+0x40/0x40 [ 61.481593][ T9] ret_from_fork+0x1f/0x30 [ 61.486105][ T9] [ 61.489138][ T9] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 61.496417][ T9] CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 6.2.0-rc2-next-20230105-syzkaller #0 [ 61.505829][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 61.515899][ T9] Workqueue: writeback wb_workfn (flush-7:0) [ 61.521917][ T9] Call Trace: [ 61.525214][ T9] [ 61.528175][ T9] dump_stack_lvl+0xd1/0x138 [ 61.532797][ T9] panic+0x2cc/0x626 [ 61.536711][ T9] ? panic_print_sys_info.part.0+0x110/0x110 [ 61.542709][ T9] ? hfsplus_cat_write_inode+0x6dd/0x7a0 [ 61.548364][ T9] check_panic_on_warn.cold+0x19/0x35 [ 61.553862][ T9] __warn+0xf2/0x1a0 [ 61.557788][ T9] ? hfsplus_cat_write_inode+0x6dd/0x7a0 [ 61.563452][ T9] report_bug+0x1c0/0x210 [ 61.567806][ T9] handle_bug+0x3c/0x70 [ 61.572022][ T9] exc_invalid_op+0x18/0x50 [ 61.576553][ T9] asm_exc_invalid_op+0x1a/0x20 [ 61.581459][ T9] RIP: 0010:hfsplus_cat_write_inode+0x6dd/0x7a0 [ 61.587736][ T9] Code: ff ff e8 f6 70 88 ff e9 42 fa ff ff 4c 89 e7 e8 a9 70 88 ff e9 0b fc ff ff e8 ff 89 3a ff 0f 0b e9 44 fc ff ff e8 f3 89 3a ff <0f> 0b e9 15 fe ff ff 41 bd fb ff ff ff e9 58 fa ff ff 4c 89 f7 e8 [ 61.607451][ T9] RSP: 0018:ffffc900000e74a0 EFLAGS: 00010293 [ 61.613550][ T9] RAX: 0000000000000000 RBX: 1ffff9200001ce96 RCX: 0000000000000000 [ 61.621533][ T9] RDX: ffff88813fe48000 RSI: ffffffff8247258d RDI: 0000000000000005 [ 61.629515][ T9] RBP: ffff88801e8101b0 R08: 0000000000000005 R09: 00000000000000f7 [ 61.637496][ T9] R10: 0000000000000058 R11: 0000000000000000 R12: 0000000000000058 [ 61.645479][ T9] R13: 0000000000000000 R14: ffff88801e810140 R15: ffffc900000e74e0 [ 61.653477][ T9] ? hfsplus_cat_write_inode+0x6dd/0x7a0 [ 61.659148][ T9] ? hfsplus_cat_read_inode+0x9c0/0x9c0 [ 61.664739][ T9] ? find_held_lock+0x2d/0x110 [ 61.669538][ T9] ? hfsplus_ext_write_extent+0xcb/0x200 [ 61.675211][ T9] ? lock_downgrade+0x6e0/0x6e0 [ 61.680081][ T9] ? rcu_read_lock_sched_held+0x3e/0x70 [ 61.685645][ T9] ? trace_contention_end+0x173/0x1e0 [ 61.691050][ T9] ? __mutex_lock+0x231/0x1360 [ 61.695840][ T9] ? __mutex_unlock_slowpath+0x157/0x5e0 [ 61.701497][ T9] ? wait_for_completion_io_timeout+0x20/0x20 [ 61.707582][ T9] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 61.713584][ T9] ? do_raw_spin_lock+0x124/0x2b0 [ 61.718628][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 61.723583][ T9] ? lock_acquire+0x32/0xc0 [ 61.728108][ T9] ? do_writepages+0x3fe/0x640 [ 61.732898][ T9] ? hfsplus_ext_write_extent+0xcb/0x200 [ 61.738558][ T9] ? hfsplus_ext_cmp_key+0x300/0x300 [ 61.743875][ T9] ? __writeback_single_inode+0x323/0x14d0 [ 61.749704][ T9] ? lock_downgrade+0x6e0/0x6e0 [ 61.754572][ T9] ? do_raw_spin_lock+0x124/0x2b0 [ 61.759623][ T9] hfsplus_write_inode+0x93/0x4e0 [ 61.764679][ T9] __writeback_single_inode+0xd38/0x14d0 [ 61.770337][ T9] writeback_sb_inodes+0x54d/0xfb0 [ 61.775488][ T9] ? sync_inode_metadata+0xe0/0xe0 [ 61.780635][ T9] ? rcu_read_lock_sched_held+0x3e/0x70 [ 61.786200][ T9] ? queue_io+0x427/0x620 [ 61.790554][ T9] wb_writeback+0x2c5/0xdd0 [ 61.795085][ T9] ? __writeback_inodes_wb+0x280/0x280 [ 61.800587][ T9] wb_workfn+0x2d4/0xdc0 [ 61.804861][ T9] ? inode_wait_for_writeback+0x40/0x40 [ 61.810434][ T9] ? lock_release+0x810/0x810 [ 61.815128][ T9] ? process_one_work+0x8a1/0x1750 [ 61.820262][ T9] ? rcu_read_lock_sched_held+0x3e/0x70 [ 61.825927][ T9] ? trace_lock_acquire+0x1f1/0x290 [ 61.831158][ T9] process_one_work+0x9bf/0x1750 [ 61.836153][ T9] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 61.841544][ T9] ? rcu_read_lock_sched_held+0x3e/0x70 [ 61.847110][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 61.852067][ T9] ? lock_acquire+0x32/0xc0 [ 61.856584][ T9] ? worker_thread+0x16d/0x1090 [ 61.861548][ T9] worker_thread+0x669/0x1090 [ 61.866266][ T9] ? process_one_work+0x1750/0x1750 [ 61.871498][ T9] kthread+0x2e8/0x3a0 [ 61.875592][ T9] ? kthread_complete_and_exit+0x40/0x40 [ 61.881251][ T9] ret_from_fork+0x1f/0x30 [ 61.885712][ T9] [ 61.888892][ T9] Kernel Offset: disabled [ 61.893296][ T9] Rebooting in 86400 seconds..