./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor544761443 <...> Warning: Permanently added '10.128.1.174' (ED25519) to the list of known hosts. execve("./syz-executor544761443", ["./syz-executor544761443"], 0x7ffe7f2960c0 /* 10 vars */) = 0 brk(NULL) = 0x55556a889000 brk(0x55556a889d00) = 0x55556a889d00 arch_prctl(ARCH_SET_FS, 0x55556a889380) = 0 set_tid_address(0x55556a889650) = 5822 set_robust_list(0x55556a889660, 24) = 0 rseq(0x55556a889ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor544761443", 4096) = 27 getrandom("\xdf\x7d\xa0\x59\xcb\xa7\xac\x48", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556a889d00 brk(0x55556a8aad00) = 0x55556a8aad00 brk(0x55556a8ab000) = 0x55556a8ab000 mprotect(0x7fd928c8c000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x55556a889650) = 5823 ./strace-static-x86_64: Process 5823 attached [pid 5823] set_robust_list(0x55556a889660, 24) = 0 [pid 5823] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5823] getppid() = 0 [pid 5823] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5823] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5823] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5823] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5823] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5823] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5823] unshare(CLONE_NEWNS) = 0 [pid 5823] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5823] unshare(CLONE_NEWIPC) = 0 [pid 5823] unshare(CLONE_NEWCGROUP) = 0 [pid 5823] unshare(CLONE_NEWUTS) = 0 [pid 5823] unshare(CLONE_SYSVSEM) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "16777216", 8) = 8 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "536870912", 9) = 9 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "1024", 4) = 4 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "8192", 4) = 4 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "1024", 4) = 4 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "1024", 4) = 4 [pid 5823] close(3) = 0 [pid 5823] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5823] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5823] close(3) = 0 [pid 5823] getpid() = 1 [pid 5823] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 86.639921][ T12] RSP: 0018:ffffc90000117220 EFLAGS: 00010293 [ 86.645994][ T12] RAX: ffffffff8295a187 RBX: ffff88807b298818 RCX: ffff88801c6c5a00 [ 86.653960][ T12] RDX: 0000000000000000 RSI: ffffffff8e15ff40 RDI: 0000000000000000 [ 86.661928][ T12] RBP: ffffc900001173b0 R08: ffff88801c6c5a00 R09: 0000000000000003 [ 86.669905][ T12] R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000 [ 86.677869][ T12] R13: 1ffff92000022e48 R14: ffff88807b2987d8 R15: 0000000000000000 [ 86.685834][ T12] FS: 0000000000000000(0000) GS:ffff888126100000(0000) knlGS:0000000000000000 [ 86.694755][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.701348][ T12] CR2: 00007fd928c90130 CR3: 000000007f248000 CR4: 00000000003526f0 [ 86.709318][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.717286][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 86.725255][ T12] Call Trace: [ 86.728531][ T12] [ 86.731463][ T12] ? __pfx_hfs_write_inode+0x10/0x10 [ 86.736762][ T12] __writeback_single_inode+0x6ee/0xff0 [ 86.742317][ T12] writeback_sb_inodes+0x6b5/0x1000 [ 86.747525][ T12] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 86.753169][ T12] ? rcu_is_watching+0x15/0xb0 [ 86.757936][ T12] wb_writeback+0x43b/0xaf0 [ 86.762444][ T12] ? queue_io+0x391/0x590 [ 86.766865][ T12] ? __pfx_wb_writeback+0x10/0x10 [ 86.771892][ T12] ? _raw_spin_unlock_irq+0x23/0x50 [ 86.777111][ T12] wb_workfn+0x409/0xef0 [ 86.781354][ T12] ? __pfx_wb_workfn+0x10/0x10 [ 86.786110][ T12] ? register_lock_class+0x51/0x320 [ 86.791327][ T12] ? __lock_acquire+0xaac/0xd20 [ 86.796200][ T12] ? process_scheduled_works+0x9ec/0x17a0 [ 86.801938][ T12] ? _raw_spin_unlock_irq+0x23/0x50 [ 86.807144][ T12] ? process_scheduled_works+0x9ec/0x17a0 [ 86.812866][ T12] ? process_scheduled_works+0x9ec/0x17a0 [ 86.818594][ T12] process_scheduled_works+0xadb/0x17a0 [ 86.824156][ T12] ? __pfx_process_scheduled_works+0x10/0x10 [ 86.830145][ T12] worker_thread+0x8a0/0xda0 [ 86.834744][ T12] kthread+0x70e/0x8a0 [ 86.838810][ T12] ? __pfx_worker_thread+0x10/0x10 [ 86.843930][ T12] ? __pfx_kthread+0x10/0x10 [ 86.848518][ T12] ? __pfx_kthread+0x10/0x10 [ 86.853102][ T12] ? _raw_spin_unlock_irq+0x23/0x50 [ 86.858308][ T12] ? lockdep_hardirqs_on+0x9c/0x150 [ 86.863535][ T12] ? __pfx_kthread+0x10/0x10 [ 86.868121][ T12] ret_from_fork+0x4b/0x80 [ 86.872532][ T12] ? __pfx_kthread+0x10/0x10 [ 86.877141][ T12] ret_from_fork_asm+0x1a/0x30 [ 86.881937][ T12] [ 86.884949][ T12] Modules linked in: [ 86.889032][ T12] ---[ end trace 0000000000000000 ]--- [ 86.896379][ T12] RIP: 0010:hfs_write_inode+0x7c8/0x7d0 [ 86.912289][ T12] Code: c1 c0 65 81 99 80 e1 07 80 c1 03 38 c1 0f 8c 7d fe ff ff 48 c7 c7 c0 65 81 99 e8 13 ed 89 ff e9 6c fe ff ff e8 d9 1d 2a ff 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 86.932680][ T12] RSP: 0018:ffffc90000117220 EFLAGS: 00010293 [ 86.940014][ T12] RAX: ffffffff8295a187 RBX: ffff88807b298818 RCX: ffff88801c6c5a00 [ 86.948032][ T12] RDX: 0000000000000000 RSI: ffffffff8e15ff40 RDI: 0000000000000000 [ 86.956294][ T12] RBP: ffffc900001173b0 R08: ffff88801c6c5a00 R09: 0000000000000003 [ 86.964593][ T12] R10: 0000000000000004 R11: 0000000000000000 R12: dffffc0000000000 [ 86.972763][ T12] R13: 1ffff92000022e48 R14: ffff88807b2987d8 R15: 0000000000000000 [ 86.981410][ T12] FS: 0000000000000000(0000) GS:ffff888126200000(0000) knlGS:0000000000000000 [ 86.993426][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.000362][ T12] CR2: 0000560cfe8ff628 CR3: 000000007ea06000 CR4: 00000000003526f0 [ 87.008785][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 87.016786][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 87.025438][ T12] Kernel panic - not syncing: Fatal exception [ 87.031837][ T12] Kernel Offset: disabled [ 87.036165][ T12] Rebooting in 86400 seconds..