./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor508878694 <...> Warning: Permanently added '10.128.1.4' (ED25519) to the list of known hosts. execve("./syz-executor508878694", ["./syz-executor508878694"], 0x7ffe5b591650 /* 10 vars */) = 0 brk(NULL) = 0x555569a30000 brk(0x555569a30d00) = 0x555569a30d00 arch_prctl(ARCH_SET_FS, 0x555569a30380) = 0 set_tid_address(0x555569a30650) = 5219 set_robust_list(0x555569a30660, 24) = 0 rseq(0x555569a30ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor508878694", 4096) = 27 getrandom("\x20\xc9\xd4\xbc\x9f\x83\x66\x99", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555569a30d00 brk(0x555569a51d00) = 0x555569a51d00 brk(0x555569a52000) = 0x555569a52000 mprotect(0x7f03cd52e000, 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=0x555569a30650) = 5220 ./strace-static-x86_64: Process 5220 attached [pid 5220] set_robust_list(0x555569a30660, 24) = 0 [pid 5220] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5220] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5220] setsid() = 1 [pid 5220] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5220] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5220] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5220] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5220] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5220] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5220] unshare(CLONE_NEWNS) = 0 [pid 5220] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5220] unshare(CLONE_NEWIPC) = 0 [pid 5220] unshare(CLONE_NEWCGROUP) = 0 [pid 5220] unshare(CLONE_NEWUTS) = 0 [pid 5220] unshare(CLONE_SYSVSEM) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "16777216", 8) = 8 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "536870912", 9) = 9 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "1024", 4) = 4 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "8192", 4) = 4 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "1024", 4) = 4 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "1024", 4) = 4 [pid 5220] close(3) = 0 [pid 5220] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5220] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5220] close(3) = 0 [pid 5220] getpid() = 1 [pid 5220] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 59.925062][ T52] RSP: 0018:ffffc90000bc7160 EFLAGS: 00010293 [ 59.931114][ T52] RAX: ffffffff8281cb18 RBX: 0000000000000000 RCX: ffff88801afb5a00 [ 59.939065][ T52] RDX: 0000000000000000 RSI: ffffffff8e95c580 RDI: 0000000000000000 [ 59.947015][ T52] RBP: ffffc90000bc72f0 R08: 0000000000000007 R09: ffffffff8281bdc2 [ 59.954967][ T52] R10: 0000000000000003 R11: ffff88801afb5a00 R12: 1ffff92000178e30 [ 59.962920][ T52] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802eff0e58 [ 59.970882][ T52] FS: 0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000 [ 59.979801][ T52] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.986372][ T52] CR2: 00007f4959595ed8 CR3: 000000000e534000 CR4: 00000000003506f0 [ 59.994334][ T52] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.002290][ T52] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.010247][ T52] Call Trace: [ 60.013521][ T52] [ 60.016444][ T52] ? __die_body+0x88/0xe0 [ 60.020773][ T52] ? die+0xcf/0x110 [ 60.024574][ T52] ? do_trap+0x15a/0x3a0 [ 60.028810][ T52] ? hfs_write_inode+0xeb9/0xec0 [ 60.033739][ T52] ? do_error_trap+0x1dc/0x2c0 [ 60.038490][ T52] ? hfs_write_inode+0xeb9/0xec0 [ 60.043413][ T52] ? mark_lock+0x9a/0x350 [ 60.047736][ T52] ? __pfx_do_error_trap+0x10/0x10 [ 60.052843][ T52] ? handle_invalid_op+0x34/0x40 [ 60.057772][ T52] ? hfs_write_inode+0xeb9/0xec0 [ 60.062701][ T52] ? exc_invalid_op+0x38/0x50 [ 60.067394][ T52] ? asm_exc_invalid_op+0x1a/0x20 [ 60.072429][ T52] ? hfs_write_inode+0x162/0xec0 [ 60.077364][ T52] ? hfs_write_inode+0xeb8/0xec0 [ 60.082300][ T52] ? hfs_write_inode+0xeb9/0xec0 [ 60.087233][ T52] ? __pfx_hfs_write_inode+0x10/0x10 [ 60.092512][ T52] ? __writeback_single_inode+0x4d1/0x10b0 [ 60.098315][ T52] ? do_raw_spin_unlock+0x13c/0x8b0 [ 60.103506][ T52] __writeback_single_inode+0x6b9/0x10b0 [ 60.109131][ T52] writeback_sb_inodes+0x99c/0x1380 [ 60.114330][ T52] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 60.119951][ T52] ? do_raw_spin_lock+0x14f/0x370 [ 60.124973][ T52] ? __lock_acquire+0x137a/0x2040 [ 60.130004][ T52] ? rcu_is_watching+0x15/0xb0 [ 60.134766][ T52] ? queue_io+0x3d9/0x5a0 [ 60.139090][ T52] wb_writeback+0x481/0xd40 [ 60.143594][ T52] ? queue_io+0x361/0x5a0 [ 60.147918][ T52] ? __pfx_wb_writeback+0x10/0x10 [ 60.152929][ T52] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 60.158904][ T52] wb_workfn+0x410/0x1090 [ 60.163228][ T52] ? __pfx_wb_workfn+0x10/0x10 [ 60.167976][ T52] ? __pfx_lock_acquire+0x10/0x10 [ 60.172991][ T52] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 60.178960][ T52] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 60.185288][ T52] ? process_scheduled_works+0x945/0x1830 [ 60.191018][ T52] process_scheduled_works+0xa2c/0x1830 [ 60.196567][ T52] ? __pfx_process_scheduled_works+0x10/0x10 [ 60.202540][ T52] ? assign_work+0x364/0x3d0 [ 60.207122][ T52] worker_thread+0x86d/0xd10 [ 60.211732][ T52] ? __kthread_parkme+0x169/0x1d0 [ 60.216745][ T52] ? __pfx_worker_thread+0x10/0x10 [ 60.221846][ T52] kthread+0x2f0/0x390 [ 60.225905][ T52] ? __pfx_worker_thread+0x10/0x10 [ 60.231008][ T52] ? __pfx_kthread+0x10/0x10 [ 60.235590][ T52] ret_from_fork+0x4b/0x80 [ 60.239995][ T52] ? __pfx_kthread+0x10/0x10 [ 60.244573][ T52] ret_from_fork_asm+0x1a/0x30 [ 60.249331][ T52] [ 60.252334][ T52] Modules linked in: [ 60.256625][ T52] ---[ end trace 0000000000000000 ]--- [ 60.262309][ T52] RIP: 0010:hfs_write_inode+0xeb9/0xec0 [ 60.267875][ T52] Code: e9 88 fb ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 9d fb ff ff e8 57 e5 75 ff e9 93 fb ff ff e8 5d 3e 2f 09 e8 48 c1 11 ff 90 <0f> 0b 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 60.287534][ T52] RSP: 0018:ffffc90000bc7160 EFLAGS: 00010293 [ 60.294859][ T52] RAX: ffffffff8281cb18 RBX: 0000000000000000 RCX: ffff88801afb5a00 [ 60.302903][ T52] RDX: 0000000000000000 RSI: ffffffff8e95c580 RDI: 0000000000000000 [ 60.310947][ T52] RBP: ffffc90000bc72f0 R08: 0000000000000007 R09: ffffffff8281bdc2 [ 60.318980][ T52] R10: 0000000000000003 R11: ffff88801afb5a00 R12: 1ffff92000178e30 [ 60.326974][ T52] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802eff0e58 [ 60.335004][ T52] FS: 0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000 [ 60.343993][ T52] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.350610][ T52] CR2: 00007f4959595ed8 CR3: 000000006b8fa000 CR4: 00000000003506f0 [ 60.358618][ T52] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.366574][ T52] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.374586][ T52] Kernel panic - not syncing: Fatal exception [ 60.380852][ T52] Kernel Offset: disabled [ 60.385163][ T52] Rebooting in 86400 seconds..