./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1498312900 <...> Warning: Permanently added '10.128.0.172' (ED25519) to the list of known hosts. execve("./syz-executor1498312900", ["./syz-executor1498312900"], 0x7ffeead6b9a0 /* 10 vars */) = 0 brk(NULL) = 0x555555a30000 brk(0x555555a30d00) = 0x555555a30d00 arch_prctl(ARCH_SET_FS, 0x555555a30380) = 0 set_tid_address(0x555555a30650) = 5034 set_robust_list(0x555555a30660, 24) = 0 rseq(0x555555a30ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1498312900", 4096) = 28 getrandom("\xb8\x56\x48\x6e\x05\xb6\x5f\x49", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555a30d00 brk(0x555555a51d00) = 0x555555a51d00 brk(0x555555a52000) = 0x555555a52000 mprotect(0x7f82d46c9000, 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 5035 attached [pid 5035] set_robust_list(0x555555a30660, 24) = 0 [pid 5035] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 5034] <... clone resumed>, child_tidptr=0x555555a30650) = 5035 [pid 5035] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 5035] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5035] setsid() = 1 [pid 5035] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5035] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5035] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5035] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5035] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5035] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5035] unshare(CLONE_NEWNS) = 0 [pid 5035] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5035] unshare(CLONE_NEWIPC) = 0 [pid 5035] unshare(CLONE_NEWCGROUP) = 0 [pid 5035] unshare(CLONE_NEWUTS) = 0 [pid 5035] unshare(CLONE_SYSVSEM) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "16777216", 8) = 8 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "536870912", 9) = 9 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "1024", 4) = 4 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "8192", 4) = 4 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "1024", 4) = 4 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "1024", 4) = 4 [pid 5035] close(3) = 0 [pid 5035] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5035] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5035] close(3) = 0 [pid 5035] getpid() = 1 [pid 5035] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e8 59 37 e5 fd 48 89 ef e8 f1 91 ff ff 41 89 c4 e9 af f9 ff [ 55.151048][ T5035] RSP: 0018:ffffc90003a3f968 EFLAGS: 00010286 [ 55.157091][ T5035] RAX: 0000000000000000 RBX: ffff88801eacd270 RCX: fffff52000747ede [ 55.165124][ T5035] RDX: ffff888025b39dc0 RSI: ffffffff83a1fd68 RDI: ffffffff8ad9cc90 [ 55.173073][ T5035] RBP: ffff888075ca1900 R08: 0000000000000001 R09: 0000000000000000 [ 55.181021][ T5035] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88807b5ca000 [ 55.188989][ T5035] R13: 00000000000013ab R14: ffff8880282bc818 R15: ffff8880282bc800 [ 55.196947][ T5035] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 55.205856][ T5035] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.212417][ T5035] CR2: 00007f82d46cd130 CR3: 000000000c976000 CR4: 0000000000350ef0 [ 55.220380][ T5035] Call Trace: [ 55.223634][ T5035] [ 55.226540][ T5035] ? show_regs+0x8f/0xa0 [ 55.230789][ T5035] ? die+0x36/0xa0 [ 55.234576][ T5035] ? do_trap+0x22b/0x420 [ 55.238795][ T5035] ? gfs2_glock_nq+0xc00/0x13f0 [ 55.243625][ T5035] ? gfs2_glock_nq+0xc00/0x13f0 [ 55.248454][ T5035] ? do_error_trap+0xf4/0x230 [ 55.253111][ T5035] ? gfs2_glock_nq+0xc00/0x13f0 [ 55.257935][ T5035] ? handle_invalid_op+0x34/0x40 [ 55.262853][ T5035] ? gfs2_glock_nq+0xc00/0x13f0 [ 55.267676][ T5035] ? exc_invalid_op+0x2d/0x40 [ 55.272345][ T5035] ? asm_exc_invalid_op+0x1a/0x20 [ 55.277350][ T5035] ? gfs2_dump_glock+0x1778/0x1c80 [ 55.282483][ T5035] ? gfs2_glock_nq+0xc00/0x13f0 [ 55.287312][ T5035] ? gfs2_glock_nq+0xc00/0x13f0 [ 55.292141][ T5035] do_sync+0x45a/0xd30 [ 55.296193][ T5035] ? do_qc+0x680/0x680 [ 55.300238][ T5035] ? gfs2_quota_sync+0x4ad/0x630 [ 55.305208][ T5035] ? spin_bug+0x1d0/0x1d0 [ 55.309527][ T5035] gfs2_quota_sync+0x419/0x630 [ 55.314270][ T5035] gfs2_sync_fs+0x44/0xb0 [ 55.318601][ T5035] ? rgrp_unlock_local+0x20/0x20 [ 55.323518][ T5035] sync_filesystem+0x109/0x280 [ 55.328289][ T5035] generic_shutdown_super+0x7e/0x3c0 [ 55.333576][ T5035] kill_block_super+0x3b/0x70 [ 55.338235][ T5035] gfs2_kill_sb+0x361/0x410 [ 55.342726][ T5035] deactivate_locked_super+0x9a/0x170 [ 55.348081][ T5035] deactivate_super+0xde/0x100 [ 55.352828][ T5035] cleanup_mnt+0x222/0x3d0 [ 55.357313][ T5035] task_work_run+0x14d/0x240 [ 55.361884][ T5035] ? task_work_cancel+0x30/0x30 [ 55.366715][ T5035] ? __put_net+0x61/0x70 [ 55.371558][ T5035] do_exit+0xa92/0x2a20 [ 55.375714][ T5035] ? do_group_exit+0x1c5/0x2a0 [ 55.380548][ T5035] ? reacquire_held_locks+0x4b0/0x4b0 [ 55.385897][ T5035] ? do_raw_spin_lock+0x12e/0x2b0 [ 55.390927][ T5035] ? mm_update_next_owner+0x840/0x840 [ 55.396319][ T5035] ? spin_bug+0x1d0/0x1d0 [ 55.401172][ T5035] do_group_exit+0xd4/0x2a0 [ 55.405682][ T5035] __x64_sys_exit_group+0x3e/0x50 [ 55.410690][ T5035] do_syscall_64+0x38/0xb0 [ 55.415085][ T5035] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.421058][ T5035] RIP: 0033:0x7f82d4640749 [ 55.425536][ T5035] Code: Unable to access opcode bytes at 0x7f82d464071f. [ 55.432528][ T5035] RSP: 002b:00007fff29f207e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 55.440928][ T5035] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f82d4640749 [ 55.448894][ T5035] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 55.456847][ T5035] RBP: 00007f82d46cf2b0 R08: ffffffffffffffb8 R09: 00007fff29f208c0 [ 55.464800][ T5035] R10: 00000000000800b0 R11: 0000000000000246 R12: 00007f82d46cf2b0 [ 55.472753][ T5035] R13: 0000000000000000 R14: 00007f82d46d0020 R15: 00007f82d460ec70 [ 55.480801][ T5035] [ 55.483799][ T5035] Modules linked in: [ 55.487828][ T5035] ---[ end trace 0000000000000000 ]--- [ 55.493318][ T5035] RIP: 0010:gfs2_glock_nq+0xc00/0x13f0 [ 55.498800][ T5035] Code: 3c 03 0f 8e dd 05 00 00 8b 55 18 48 89 de 48 c7 c7 a0 95 d9 8a e8 30 59 c8 fd 48 8b 34 24 ba 01 00 00 00 31 ff e8 10 53 ff ff <0f> 0b e8 59 37 e5 fd 48 89 ef e8 f1 91 ff ff 41 89 c4 e9 af f9 ff [ 55.518444][ T5035] RSP: 0018:ffffc90003a3f968 EFLAGS: 00010286 [ 55.524554][ T5035] RAX: 0000000000000000 RBX: ffff88801eacd270 RCX: fffff52000747ede [ 55.532556][ T5035] RDX: ffff888025b39dc0 RSI: ffffffff83a1fd68 RDI: ffffffff8ad9cc90 [ 55.540552][ T5035] RBP: ffff888075ca1900 R08: 0000000000000001 R09: 0000000000000000 [ 55.548519][ T5035] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88807b5ca000 [ 55.556499][ T5035] R13: 00000000000013ab R14: ffff8880282bc818 R15: ffff8880282bc800 [ 55.564499][ T5035] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 55.573437][ T5035] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.580080][ T5035] CR2: 00007f82d46cd130 CR3: 000000000c976000 CR4: 0000000000350ef0 [ 55.588081][ T5035] Kernel panic - not syncing: Fatal exception [ 55.595018][ T5035] Kernel Offset: disabled [ 55.599326][ T5035] Rebooting in 86400 seconds..