./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1017786773 <...> Warning: Permanently added '10.128.1.145' (ECDSA) to the list of known hosts. execve("./syz-executor1017786773", ["./syz-executor1017786773"], 0x7ffdadbef500 /* 10 vars */) = 0 brk(NULL) = 0x555556d84000 brk(0x555556d84c40) = 0x555556d84c40 arch_prctl(ARCH_SET_FS, 0x555556d84300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1017786773", 4096) = 28 brk(0x555556da5c40) = 0x555556da5c40 brk(0x555556da6000) = 0x555556da6000 mprotect(0x7f84e8a5b000, 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 3630 attached , child_tidptr=0x555556d845d0) = 3630 [pid 3630] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3630] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3630] setsid() = 1 [pid 3630] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3630] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3630] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3630] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3630] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 3630] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3630] unshare(CLONE_NEWNS) = 0 [pid 3630] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3630] unshare(CLONE_NEWIPC) = 0 [pid 3630] unshare(CLONE_NEWCGROUP) = 0 [pid 3630] unshare(CLONE_NEWUTS) = 0 [pid 3630] unshare(CLONE_SYSVSEM) = 0 [pid 3630] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3630] write(3, "16777216", 8) = 8 [pid 3630] close(3) = 0 [pid 3630] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3630] write(3, "536870912", 9) = 9 [pid 3630] close(3) = 0 [pid 3630] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3630] write(3, "1024", 4) = 4 [pid 3630] close(3) = 0 [pid 3630] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3630] write(3, "8192", 4) = 4 [pid 3630] close(3) = 0 [pid 3630] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3630] write(3, "1024", 4) = 4 [pid 3630] close(3) = 0 [pid 3630] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3630] write(3, "1024", 4) = 4 [pid 3630] close(3) = 0 [pid 3630] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3630] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3630] close(3) = 0 [pid 3630] getpid() = 1 [pid 3630] 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 [ 52.952431][ T9] RSP: 0018:ffffc900000e7498 EFLAGS: 00010293 [ 52.958616][ T9] RAX: 0000000000000000 RBX: 1ffff9200001ce95 RCX: 0000000000000000 [ 52.966757][ T9] RDX: ffff888012240000 RSI: ffffffff824354dd RDI: 0000000000000005 [ 52.974799][ T9] RBP: ffff88801ed0a370 R08: 0000000000000005 R09: 00000000000000f7 [ 52.982884][ T9] R10: 0000000000000058 R11: 0000000000000000 R12: 0000000000000058 [ 52.990938][ T9] R13: 0000000000000000 R14: ffff88801ed0a300 R15: ffffc900000e74d8 [ 52.998947][ T9] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 53.007947][ T9] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.014576][ T9] CR2: 000056208d329470 CR3: 0000000018a11000 CR4: 0000000000350ef0 [ 53.022533][ T9] Call Trace: [ 53.025866][ T9] [ 53.028816][ T9] ? hfsplus_cat_read_inode+0x9c0/0x9c0 [ 53.034437][ T9] ? find_held_lock+0x2d/0x110 [ 53.039241][ T9] ? hfsplus_ext_write_extent+0xcb/0x200 [ 53.044934][ T9] ? lock_downgrade+0x6e0/0x6e0 [ 53.049813][ T9] ? rcu_read_lock_sched_held+0x3e/0x70 [ 53.055403][ T9] ? trace_contention_end+0x153/0x1e0 [ 53.060888][ T9] ? __mutex_lock+0x231/0x1360 [ 53.065732][ T9] ? __mutex_unlock_slowpath+0x157/0x5e0 [ 53.071427][ T9] ? wait_for_completion_io_timeout+0x20/0x20 [ 53.077570][ T9] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 53.083814][ T9] ? hfsplus_ext_write_extent+0xcb/0x200 [ 53.089435][ T9] ? hfsplus_ext_cmp_key+0x300/0x300 [ 53.094815][ T9] ? __writeback_single_inode+0x323/0x1440 [ 53.100653][ T9] ? lock_downgrade+0x6e0/0x6e0 [ 53.105977][ T9] ? do_raw_spin_lock+0x124/0x2b0 [ 53.111027][ T9] hfsplus_write_inode+0x93/0x4e0 [ 53.116996][ T9] __writeback_single_inode+0xcfc/0x1440 [ 53.122677][ T9] writeback_sb_inodes+0x54d/0xf90 [ 53.127881][ T9] ? sync_inode_metadata+0xe0/0xe0 [ 53.133039][ T9] ? rcu_read_lock_sched_held+0x3e/0x70 [ 53.138677][ T9] ? queue_io+0x427/0x600 [ 53.143027][ T9] wb_writeback+0x2c5/0xd70 [ 53.147582][ T9] ? __writeback_inodes_wb+0x280/0x280 [ 53.153075][ T9] wb_workfn+0x2e0/0x12f0 [ 53.157445][ T9] ? inode_wait_for_writeback+0x40/0x40 [ 53.163036][ T9] ? lock_release+0x810/0x810 [ 53.167763][ T9] ? lock_downgrade+0x6e0/0x6e0 [ 53.172645][ T9] ? __switch_to+0x5d0/0x10e0 [ 53.177376][ T9] process_one_work+0x9bf/0x1710 [ 53.182341][ T9] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 53.187845][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 53.192820][ T9] ? _raw_spin_lock_irq+0x45/0x50 [ 53.197896][ T9] worker_thread+0x669/0x1090 [ 53.202591][ T9] ? process_one_work+0x1710/0x1710 [ 53.207956][ T9] kthread+0x2e8/0x3a0 [ 53.212077][ T9] ? kthread_complete_and_exit+0x40/0x40 [ 53.217948][ T9] ret_from_fork+0x1f/0x30 [ 53.222413][ T9] [ 53.225513][ T9] Kernel panic - not syncing: panic_on_warn set ... [ 53.232093][ T9] CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted 6.1.0-rc8-syzkaller-00154-g296a7b7eb792 #0 [ 53.241964][ T9] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 53.252004][ T9] Workqueue: writeback wb_workfn (flush-7:0) [ 53.257971][ T9] Call Trace: [ 53.261228][ T9] [ 53.264142][ T9] dump_stack_lvl+0xd1/0x138 [ 53.268716][ T9] panic+0x2cc/0x626 [ 53.272599][ T9] ? panic_print_sys_info.part.0+0x110/0x110 [ 53.278570][ T9] ? __warn.cold+0x24b/0x350 [ 53.283146][ T9] ? hfsplus_cat_write_inode+0x6dd/0x7a0 [ 53.288768][ T9] __warn.cold+0x25c/0x350 [ 53.293170][ T9] ? hfsplus_cat_write_inode+0x6dd/0x7a0 [ 53.298787][ T9] report_bug+0x1c0/0x210 [ 53.303101][ T9] handle_bug+0x3c/0x70 [ 53.307244][ T9] exc_invalid_op+0x18/0x50 [ 53.311730][ T9] asm_exc_invalid_op+0x1a/0x20 [ 53.316567][ T9] RIP: 0010:hfsplus_cat_write_inode+0x6dd/0x7a0 [ 53.322791][ T9] Code: ff ff e8 76 a3 89 ff e9 42 fa ff ff 4c 89 e7 e8 29 a3 89 ff e9 0b fc ff ff e8 2f c9 3c ff 0f 0b e9 44 fc ff ff e8 23 c9 3c ff <0f> 0b e9 15 fe ff ff 41 bd fb ff ff ff e9 58 fa ff ff 4c 89 f7 e8 [ 53.342384][ T9] RSP: 0018:ffffc900000e7498 EFLAGS: 00010293 [ 53.348445][ T9] RAX: 0000000000000000 RBX: 1ffff9200001ce95 RCX: 0000000000000000 [ 53.356404][ T9] RDX: ffff888012240000 RSI: ffffffff824354dd RDI: 0000000000000005 [ 53.364362][ T9] RBP: ffff88801ed0a370 R08: 0000000000000005 R09: 00000000000000f7 [ 53.372319][ T9] R10: 0000000000000058 R11: 0000000000000000 R12: 0000000000000058 [ 53.380276][ T9] R13: 0000000000000000 R14: ffff88801ed0a300 R15: ffffc900000e74d8 [ 53.388244][ T9] ? hfsplus_cat_write_inode+0x6dd/0x7a0 [ 53.393876][ T9] ? hfsplus_cat_write_inode+0x6dd/0x7a0 [ 53.399505][ T9] ? hfsplus_cat_read_inode+0x9c0/0x9c0 [ 53.405053][ T9] ? find_held_lock+0x2d/0x110 [ 53.409817][ T9] ? hfsplus_ext_write_extent+0xcb/0x200 [ 53.415444][ T9] ? lock_downgrade+0x6e0/0x6e0 [ 53.420288][ T9] ? rcu_read_lock_sched_held+0x3e/0x70 [ 53.425833][ T9] ? trace_contention_end+0x153/0x1e0 [ 53.431198][ T9] ? __mutex_lock+0x231/0x1360 [ 53.435965][ T9] ? __mutex_unlock_slowpath+0x157/0x5e0 [ 53.441597][ T9] ? wait_for_completion_io_timeout+0x20/0x20 [ 53.447663][ T9] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 53.453658][ T9] ? hfsplus_ext_write_extent+0xcb/0x200 [ 53.459286][ T9] ? hfsplus_ext_cmp_key+0x300/0x300 [ 53.464567][ T9] ? __writeback_single_inode+0x323/0x1440 [ 53.470364][ T9] ? lock_downgrade+0x6e0/0x6e0 [ 53.475213][ T9] ? do_raw_spin_lock+0x124/0x2b0 [ 53.480230][ T9] hfsplus_write_inode+0x93/0x4e0 [ 53.485254][ T9] __writeback_single_inode+0xcfc/0x1440 [ 53.490883][ T9] writeback_sb_inodes+0x54d/0xf90 [ 53.496012][ T9] ? sync_inode_metadata+0xe0/0xe0 [ 53.501124][ T9] ? rcu_read_lock_sched_held+0x3e/0x70 [ 53.506665][ T9] ? queue_io+0x427/0x600 [ 53.510987][ T9] wb_writeback+0x2c5/0xd70 [ 53.515487][ T9] ? __writeback_inodes_wb+0x280/0x280 [ 53.520947][ T9] wb_workfn+0x2e0/0x12f0 [ 53.525276][ T9] ? inode_wait_for_writeback+0x40/0x40 [ 53.530816][ T9] ? lock_release+0x810/0x810 [ 53.535517][ T9] ? lock_downgrade+0x6e0/0x6e0 [ 53.540369][ T9] ? __switch_to+0x5d0/0x10e0 [ 53.545043][ T9] process_one_work+0x9bf/0x1710 [ 53.549979][ T9] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 53.555349][ T9] ? rwlock_bug.part.0+0x90/0x90 [ 53.560272][ T9] ? _raw_spin_lock_irq+0x45/0x50 [ 53.565293][ T9] worker_thread+0x669/0x1090 [ 53.569988][ T9] ? process_one_work+0x1710/0x1710 [ 53.575178][ T9] kthread+0x2e8/0x3a0 [ 53.579234][ T9] ? kthread_complete_and_exit+0x40/0x40 [ 53.584857][ T9] ret_from_fork+0x1f/0x30 [ 53.589277][ T9] [ 53.593191][ T9] Kernel Offset: disabled [ 53.597569][ T9] Rebooting in 86400 seconds..