./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor865042477 <...> Warning: Permanently added '10.128.1.124' (ED25519) to the list of known hosts. execve("./syz-executor865042477", ["./syz-executor865042477"], 0x7fff566fdbe0 /* 10 vars */) = 0 brk(NULL) = 0x555556001000 brk(0x555556001d00) = 0x555556001d00 arch_prctl(ARCH_SET_FS, 0x555556001380) = 0 set_tid_address(0x555556001650) = 5030 set_robust_list(0x555556001660, 24) = 0 rseq(0x555556001ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor865042477", 4096) = 27 getrandom("\xf5\xb6\x62\x50\xca\x23\xa4\xe2", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556001d00 brk(0x555556022d00) = 0x555556022d00 brk(0x555556023000) = 0x555556023000 mprotect(0x7fdabb211000, 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=0x555556001650) = 5031 ./strace-static-x86_64: Process 5031 attached [pid 5031] set_robust_list(0x555556001660, 24) = 0 [pid 5031] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5031] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5031] setsid() = 1 [pid 5031] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5031] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5031] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5031] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5031] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5031] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5031] unshare(CLONE_NEWNS) = 0 [pid 5031] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5031] unshare(CLONE_NEWIPC) = 0 [pid 5031] unshare(CLONE_NEWCGROUP) = 0 [pid 5031] unshare(CLONE_NEWUTS) = 0 [pid 5031] unshare(CLONE_SYSVSEM) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "16777216", 8) = 8 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "536870912", 9) = 9 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1024", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "8192", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1024", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1024", 4) = 4 [pid 5031] close(3) = 0 [pid 5031] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5031] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5031] close(3) = 0 [pid 5031] getpid() = 1 [pid 5031] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e8 59 06 e5 fd 48 89 ef e8 f1 91 ff ff 41 89 c4 e9 af f9 ff [ 57.856931][ T5031] RSP: 0018:ffffc900043a7968 EFLAGS: 00010286 [ 57.862973][ T5031] RAX: 0000000000000000 RBX: ffff88807b485270 RCX: fffff52000874ede [ 57.870920][ T5031] RDX: ffff888014f4bb80 RSI: ffffffff83a23e58 RDI: ffffffff8ad9d4d0 [ 57.878873][ T5031] RBP: ffff88807764c960 R08: 0000000000000001 R09: 0000000000000000 [ 57.886827][ T5031] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88807cff0000 [ 57.894781][ T5031] R13: 00000000000013a7 R14: ffff88801f466318 R15: ffff88801f466300 [ 57.902741][ T5031] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 57.911654][ T5031] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.918227][ T5031] CR2: 00007f12c1d6f000 CR3: 000000007c9d4000 CR4: 0000000000350ee0 [ 57.926198][ T5031] Call Trace: [ 57.929465][ T5031] [ 57.932380][ T5031] ? show_regs+0x8f/0xa0 [ 57.936613][ T5031] ? die+0x36/0xa0 [ 57.940322][ T5031] ? do_trap+0x22b/0x420 [ 57.944555][ T5031] ? gfs2_glock_nq+0xc00/0x13f0 [ 57.949392][ T5031] ? gfs2_glock_nq+0xc00/0x13f0 [ 57.954225][ T5031] ? do_error_trap+0xf4/0x230 [ 57.958891][ T5031] ? gfs2_glock_nq+0xc00/0x13f0 [ 57.963728][ T5031] ? handle_invalid_op+0x34/0x40 [ 57.968658][ T5031] ? gfs2_glock_nq+0xc00/0x13f0 [ 57.973493][ T5031] ? exc_invalid_op+0x2d/0x40 [ 57.978171][ T5031] ? asm_exc_invalid_op+0x1a/0x20 [ 57.983186][ T5031] ? gfs2_dump_glock+0x1778/0x1c80 [ 57.988283][ T5031] ? gfs2_glock_nq+0xc00/0x13f0 [ 57.993124][ T5031] ? gfs2_glock_nq+0xc00/0x13f0 [ 57.997963][ T5031] do_sync+0x45a/0xd30 [ 58.002024][ T5031] ? do_qc+0x680/0x680 [ 58.006078][ T5031] ? gfs2_quota_sync+0x4ad/0x630 [ 58.011010][ T5031] ? spin_bug+0x1d0/0x1d0 [ 58.015330][ T5031] gfs2_quota_sync+0x419/0x630 [ 58.020083][ T5031] gfs2_sync_fs+0x44/0xb0 [ 58.024402][ T5031] ? rgrp_unlock_local+0x20/0x20 [ 58.029326][ T5031] sync_filesystem+0x109/0x280 [ 58.034078][ T5031] generic_shutdown_super+0x7e/0x3c0 [ 58.039360][ T5031] kill_block_super+0x3b/0x70 [ 58.044026][ T5031] gfs2_kill_sb+0x361/0x410 [ 58.048521][ T5031] deactivate_locked_super+0x9a/0x170 [ 58.053901][ T5031] deactivate_super+0xde/0x100 [ 58.058657][ T5031] cleanup_mnt+0x222/0x3d0 [ 58.063062][ T5031] task_work_run+0x14d/0x240 [ 58.067647][ T5031] ? task_work_cancel+0x30/0x30 [ 58.072486][ T5031] ? __put_net+0x61/0x70 [ 58.076722][ T5031] do_exit+0xa92/0x2a20 [ 58.080870][ T5031] ? do_group_exit+0x1c5/0x2a0 [ 58.085628][ T5031] ? reacquire_held_locks+0x4b0/0x4b0 [ 58.090996][ T5031] ? do_raw_spin_lock+0x12e/0x2b0 [ 58.096015][ T5031] ? mm_update_next_owner+0x840/0x840 [ 58.101377][ T5031] ? spin_bug+0x1d0/0x1d0 [ 58.105701][ T5031] do_group_exit+0xd4/0x2a0 [ 58.110196][ T5031] __x64_sys_exit_group+0x3e/0x50 [ 58.115212][ T5031] do_syscall_64+0x38/0xb0 [ 58.119625][ T5031] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 58.125513][ T5031] RIP: 0033:0x7fdabb188749 [ 58.129943][ T5031] Code: Unable to access opcode bytes at 0x7fdabb18871f. [ 58.136943][ T5031] RSP: 002b:00007fff3ab12a48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 58.145345][ T5031] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fdabb188749 [ 58.153305][ T5031] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 58.161290][ T5031] RBP: 00007fdabb2172b0 R08: ffffffffffffffb8 R09: 00007fff3ab12b20 [ 58.169250][ T5031] R10: 00000000000800b0 R11: 0000000000000246 R12: 00007fdabb2172b0 [ 58.177208][ T5031] R13: 0000000000000000 R14: 00007fdabb218020 R15: 00007fdabb156c70 [ 58.185168][ T5031] [ 58.188172][ T5031] Modules linked in: [ 58.192121][ T5031] ---[ end trace 0000000000000000 ]--- [ 58.197589][ T5031] RIP: 0010:gfs2_glock_nq+0xc00/0x13f0 [ 58.203068][ T5031] Code: 3c 03 0f 8e dd 05 00 00 8b 55 18 48 89 de 48 c7 c7 e0 9d d9 8a e8 80 28 c8 fd 48 8b 34 24 ba 01 00 00 00 31 ff e8 10 53 ff ff <0f> 0b e8 59 06 e5 fd 48 89 ef e8 f1 91 ff ff 41 89 c4 e9 af f9 ff [ 58.222807][ T5031] RSP: 0018:ffffc900043a7968 EFLAGS: 00010286 [ 58.228929][ T5031] RAX: 0000000000000000 RBX: ffff88807b485270 RCX: fffff52000874ede [ 58.236891][ T5031] RDX: ffff888014f4bb80 RSI: ffffffff83a23e58 RDI: ffffffff8ad9d4d0 [ 58.244875][ T5031] RBP: ffff88807764c960 R08: 0000000000000001 R09: 0000000000000000 [ 58.252853][ T5031] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88807cff0000 [ 58.260835][ T5031] R13: 00000000000013a7 R14: ffff88801f466318 R15: ffff88801f466300 [ 58.268817][ T5031] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 58.277758][ T5031] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.284337][ T5031] CR2: 00007f12c1d6f000 CR3: 000000007c9d4000 CR4: 0000000000350ee0 [ 58.292325][ T5031] Kernel panic - not syncing: Fatal exception [ 58.298632][ T5031] Kernel Offset: disabled [ 58.302934][ T5031] Rebooting in 86400 seconds..