./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor496529248 <...> Warning: Permanently added '10.128.1.7' (ED25519) to the list of known hosts. execve("./syz-executor496529248", ["./syz-executor496529248"], 0x7ffe99245900 /* 10 vars */) = 0 brk(NULL) = 0x555556b98000 brk(0x555556b98d00) = 0x555556b98d00 arch_prctl(ARCH_SET_FS, 0x555556b98380) = 0 set_tid_address(0x555556b98650) = 5033 set_robust_list(0x555556b98660, 24) = 0 rseq(0x555556b98ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor496529248", 4096) = 27 getrandom("\x9d\x74\xa1\xca\x2d\x45\xfc\x0a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556b98d00 brk(0x555556bb9d00) = 0x555556bb9d00 brk(0x555556bba000) = 0x555556bba000 mprotect(0x7f5cad1de000, 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 5034 attached [pid 5034] set_robust_list(0x555556b98660, 24) = 0 [pid 5033] <... clone resumed>, child_tidptr=0x555556b98650) = 5034 [pid 5034] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5034] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5034] setsid() = 1 [pid 5034] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5034] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5034] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5034] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5034] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5034] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5034] unshare(CLONE_NEWNS) = 0 [pid 5034] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5034] unshare(CLONE_NEWIPC) = 0 [pid 5034] unshare(CLONE_NEWCGROUP) = 0 [pid 5034] unshare(CLONE_NEWUTS) = 0 [pid 5034] unshare(CLONE_SYSVSEM) = 0 [pid 5034] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "16777216", 8) = 8 [pid 5034] close(3) = 0 [pid 5034] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "536870912", 9) = 9 [pid 5034] close(3) = 0 [pid 5034] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "1024", 4) = 4 [pid 5034] close(3) = 0 [pid 5034] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "8192", 4) = 4 [pid 5034] close(3) = 0 [pid 5034] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "1024", 4) = 4 [pid 5034] close(3) = 0 [pid 5034] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "1024", 4) = 4 [pid 5034] close(3) = 0 [pid 5034] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5034] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5034] close(3) = 0 [pid 5034] getpid() = 1 [pid 5034] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e8 99 30 e5 fd 48 89 ef e8 f1 91 ff ff 41 89 c4 e9 af f9 ff [ 55.984166][ T5034] RSP: 0018:ffffc90003a0f968 EFLAGS: 00010286 [ 55.990299][ T5034] RAX: 0000000000000000 RBX: ffff88801cd31270 RCX: fffff52000741ede [ 55.998256][ T5034] RDX: ffff8880217e5940 RSI: ffffffff83a203d8 RDI: ffffffff8ad9cdd0 [ 56.006217][ T5034] RBP: ffff888078a58000 R08: 0000000000000001 R09: 0000000000000000 [ 56.014172][ T5034] R10: 0000000000000001 R11: 0000000000000001 R12: ffff888072c6d000 [ 56.022125][ T5034] R13: 00000000000013aa R14: ffff88801c41d718 R15: ffff88801c41d700 [ 56.030077][ T5034] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 56.038990][ T5034] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.045561][ T5034] CR2: 0000558ee2aa1e50 CR3: 00000000296dc000 CR4: 0000000000350ef0 [ 56.053516][ T5034] Call Trace: [ 56.056777][ T5034] [ 56.059690][ T5034] ? show_regs+0x8f/0xa0 [ 56.063921][ T5034] ? die+0x36/0xa0 [ 56.067626][ T5034] ? do_trap+0x22b/0x420 [ 56.071856][ T5034] ? gfs2_glock_nq+0xc00/0x13f0 [ 56.076708][ T5034] ? gfs2_glock_nq+0xc00/0x13f0 [ 56.081540][ T5034] ? do_error_trap+0xf4/0x230 [ 56.086302][ T5034] ? gfs2_glock_nq+0xc00/0x13f0 [ 56.091137][ T5034] ? handle_invalid_op+0x34/0x40 [ 56.096064][ T5034] ? gfs2_glock_nq+0xc00/0x13f0 [ 56.100900][ T5034] ? exc_invalid_op+0x2d/0x40 [ 56.105576][ T5034] ? asm_exc_invalid_op+0x1a/0x20 [ 56.110582][ T5034] ? gfs2_dump_glock+0x1778/0x1c80 [ 56.115674][ T5034] ? gfs2_glock_nq+0xc00/0x13f0 [ 56.120504][ T5034] ? gfs2_glock_nq+0xc00/0x13f0 [ 56.125338][ T5034] do_sync+0x45a/0xd30 [ 56.129394][ T5034] ? do_qc+0x680/0x680 [ 56.133443][ T5034] ? gfs2_quota_sync+0x4ad/0x630 [ 56.138362][ T5034] ? spin_bug+0x1d0/0x1d0 [ 56.142682][ T5034] gfs2_quota_sync+0x419/0x630 [ 56.147429][ T5034] gfs2_sync_fs+0x44/0xb0 [ 56.151743][ T5034] ? rgrp_unlock_local+0x20/0x20 [ 56.156664][ T5034] sync_filesystem+0x109/0x280 [ 56.161415][ T5034] generic_shutdown_super+0x7e/0x3c0 [ 56.166687][ T5034] kill_block_super+0x3b/0x70 [ 56.171351][ T5034] gfs2_kill_sb+0x361/0x410 [ 56.175865][ T5034] deactivate_locked_super+0x9a/0x170 [ 56.181225][ T5034] deactivate_super+0xde/0x100 [ 56.185987][ T5034] cleanup_mnt+0x222/0x3d0 [ 56.190391][ T5034] task_work_run+0x14d/0x240 [ 56.194969][ T5034] ? task_work_cancel+0x30/0x30 [ 56.199806][ T5034] ? __put_net+0x61/0x70 [ 56.204038][ T5034] do_exit+0xa92/0x2a20 [ 56.208184][ T5034] ? do_group_exit+0x1c5/0x2a0 [ 56.212936][ T5034] ? reacquire_held_locks+0x4b0/0x4b0 [ 56.218293][ T5034] ? do_raw_spin_lock+0x12e/0x2b0 [ 56.223305][ T5034] ? mm_update_next_owner+0x840/0x840 [ 56.228664][ T5034] ? spin_bug+0x1d0/0x1d0 [ 56.232983][ T5034] do_group_exit+0xd4/0x2a0 [ 56.237476][ T5034] __x64_sys_exit_group+0x3e/0x50 [ 56.242486][ T5034] do_syscall_64+0x38/0xb0 [ 56.246888][ T5034] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 56.252765][ T5034] RIP: 0033:0x7f5cad155709 [ 56.257158][ T5034] Code: Unable to access opcode bytes at 0x7f5cad1556df. [ 56.264150][ T5034] RSP: 002b:00007fff76a20d08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 56.272541][ T5034] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f5cad155709 [ 56.280492][ T5034] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 56.288529][ T5034] RBP: 00007f5cad1e42b0 R08: ffffffffffffffb8 R09: 0000000000013439 [ 56.296480][ T5034] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5cad1e42b0 [ 56.304432][ T5034] R13: 0000000000000000 R14: 00007f5cad1e5020 R15: 00007f5cad123c50 [ 56.312409][ T5034] [ 56.315407][ T5034] Modules linked in: [ 56.319403][ T5034] ---[ end trace 0000000000000000 ]--- [ 56.324862][ T5034] RIP: 0010:gfs2_glock_nq+0xc00/0x13f0 [ 56.330348][ T5034] Code: 3c 03 0f 8e dd 05 00 00 8b 55 18 48 89 de 48 c7 c7 e0 96 d9 8a e8 c0 52 c8 fd 48 8b 34 24 ba 01 00 00 00 31 ff e8 10 53 ff ff <0f> 0b e8 99 30 e5 fd 48 89 ef e8 f1 91 ff ff 41 89 c4 e9 af f9 ff [ 56.350233][ T5034] RSP: 0018:ffffc90003a0f968 EFLAGS: 00010286 [ 56.356279][ T5034] RAX: 0000000000000000 RBX: ffff88801cd31270 RCX: fffff52000741ede [ 56.364278][ T5034] RDX: ffff8880217e5940 RSI: ffffffff83a203d8 RDI: ffffffff8ad9cdd0 [ 56.372266][ T5034] RBP: ffff888078a58000 R08: 0000000000000001 R09: 0000000000000000 [ 56.380255][ T5034] R10: 0000000000000001 R11: 0000000000000001 R12: ffff888072c6d000 [ 56.388217][ T5034] R13: 00000000000013aa R14: ffff88801c41d718 R15: ffff88801c41d700 [ 56.396206][ T5034] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 56.405182][ T5034] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.411798][ T5034] CR2: 0000558ee2aa1e50 CR3: 00000000296dc000 CR4: 0000000000350ef0 [ 56.419797][ T5034] Kernel panic - not syncing: Fatal exception [ 56.426636][ T5034] Kernel Offset: disabled [ 56.430943][ T5034] Rebooting in 86400 seconds..