./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2724849495 <...> Warning: Permanently added '10.128.0.97' (ED25519) to the list of known hosts. execve("./syz-executor2724849495", ["./syz-executor2724849495"], 0x7fffe35b0310 /* 10 vars */) = 0 brk(NULL) = 0x5555565b5000 brk(0x5555565b5d00) = 0x5555565b5d00 arch_prctl(ARCH_SET_FS, 0x5555565b5380) = 0 set_tid_address(0x5555565b5650) = 5068 set_robust_list(0x5555565b5660, 24) = 0 rseq(0x5555565b5ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2724849495", 4096) = 28 getrandom("\xc3\x17\x1d\xb1\x16\x9d\x05\xc8", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555565b5d00 brk(0x5555565d6d00) = 0x5555565d6d00 brk(0x5555565d7000) = 0x5555565d7000 mprotect(0x7f19776ff000, 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=0x5555565b5650) = 5069 ./strace-static-x86_64: Process 5069 attached [pid 5069] set_robust_list(0x5555565b5660, 24) = 0 [pid 5069] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5069] setsid() = 1 [pid 5069] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5069] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5069] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5069] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5069] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5069] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5069] unshare(CLONE_NEWNS) = 0 [pid 5069] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5069] unshare(CLONE_NEWIPC) = 0 [pid 5069] unshare(CLONE_NEWCGROUP) = 0 [pid 5069] unshare(CLONE_NEWUTS) = 0 [pid 5069] unshare(CLONE_SYSVSEM) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "16777216", 8) = 8 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "536870912", 9) = 9 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "1024", 4) = 4 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "8192", 4) = 4 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "1024", 4) = 4 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "1024", 4) = 4 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5069] close(3) = 0 [pid 5069] getpid() = 1 [pid 5069] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b e8 68 b1 e2 fd 48 89 ef e8 c0 91 ff ff 41 89 c4 e9 ae f9 ff [ 55.255956][ T5069] RSP: 0018:ffffc90003a3f968 EFLAGS: 00010286 [ 55.262007][ T5069] RAX: 0000000000000000 RBX: ffff88801a2c9270 RCX: fffff52000747ede [ 55.269962][ T5069] RDX: ffff8880251c0000 RSI: ffffffff83a42ab8 RDI: ffffffff8b1a18d0 [ 55.277911][ T5069] RBP: ffff888075cd68a0 R08: 0000000000000001 R09: 0000000000000000 [ 55.285881][ T5069] R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880794ac000 [ 55.293836][ T5069] R13: 00000000000013cd R14: ffff888027973c18 R15: ffff888027973c00 [ 55.301799][ T5069] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 55.310724][ T5069] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.317297][ T5069] CR2: 00007f1977703130 CR3: 000000000cd77000 CR4: 0000000000350ef0 [ 55.325260][ T5069] Call Trace: [ 55.328529][ T5069] [ 55.331449][ T5069] ? show_regs+0x8f/0xa0 [ 55.335694][ T5069] ? die+0x36/0xa0 [ 55.339407][ T5069] ? do_trap+0x22b/0x420 [ 55.343650][ T5069] ? gfs2_glock_nq+0xc01/0x13f0 [ 55.348485][ T5069] ? gfs2_glock_nq+0xc01/0x13f0 [ 55.353319][ T5069] ? do_error_trap+0xf4/0x230 [ 55.357990][ T5069] ? gfs2_glock_nq+0xc01/0x13f0 [ 55.362829][ T5069] ? handle_invalid_op+0x34/0x40 [ 55.367763][ T5069] ? gfs2_glock_nq+0xc01/0x13f0 [ 55.372600][ T5069] ? exc_invalid_op+0x2e/0x40 [ 55.377280][ T5069] ? asm_exc_invalid_op+0x1a/0x20 [ 55.382295][ T5069] ? gfs2_dump_glock+0x1778/0x1c80 [ 55.387407][ T5069] ? gfs2_glock_nq+0xc01/0x13f0 [ 55.392248][ T5069] ? gfs2_glock_nq+0xc00/0x13f0 [ 55.397089][ T5069] do_sync+0x45a/0xd30 [ 55.401163][ T5069] ? do_qc+0x5e0/0x5e0 [ 55.405311][ T5069] ? gfs2_quota_sync+0x4ad/0x630 [ 55.410241][ T5069] ? spin_bug+0x1d0/0x1d0 [ 55.414556][ T5069] ? qd_check_sync+0x3d8/0x4f0 [ 55.419317][ T5069] gfs2_quota_sync+0x419/0x630 [ 55.424168][ T5069] gfs2_sync_fs+0x44/0xb0 [ 55.428487][ T5069] ? rgrp_unlock_local+0x20/0x20 [ 55.433415][ T5069] sync_filesystem+0x109/0x280 [ 55.438257][ T5069] generic_shutdown_super+0x7e/0x3d0 [ 55.443537][ T5069] kill_block_super+0x3b/0x90 [ 55.448206][ T5069] gfs2_kill_sb+0x361/0x410 [ 55.452708][ T5069] deactivate_locked_super+0xbc/0x1a0 [ 55.458074][ T5069] deactivate_super+0xde/0x100 [ 55.462829][ T5069] cleanup_mnt+0x222/0x450 [ 55.467240][ T5069] task_work_run+0x14d/0x240 [ 55.471820][ T5069] ? task_work_cancel+0x30/0x30 [ 55.476661][ T5069] do_exit+0xa8a/0x2ad0 [ 55.480804][ T5069] ? do_group_exit+0x1c5/0x2a0 [ 55.485555][ T5069] ? reacquire_held_locks+0x4c0/0x4c0 [ 55.491108][ T5069] ? do_raw_spin_lock+0x12e/0x2b0 [ 55.496121][ T5069] ? mm_update_next_owner+0x840/0x840 [ 55.501483][ T5069] ? spin_bug+0x1d0/0x1d0 [ 55.505800][ T5069] do_group_exit+0xd4/0x2a0 [ 55.510293][ T5069] __x64_sys_exit_group+0x3e/0x50 [ 55.515307][ T5069] do_syscall_64+0x40/0x110 [ 55.519806][ T5069] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 55.525687][ T5069] RIP: 0033:0x7f1977677709 [ 55.530083][ T5069] Code: Unable to access opcode bytes at 0x7f19776776df. [ 55.537082][ T5069] RSP: 002b:00007fff67a487a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 55.545480][ T5069] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f1977677709 [ 55.553442][ T5069] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 55.561406][ T5069] RBP: 00007f19777052b0 R08: ffffffffffffffb8 R09: 000000000001268c [ 55.569367][ T5069] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f19777052b0 [ 55.577405][ T5069] R13: 0000000000000000 R14: 00007f1977706020 R15: 00007f1977645c60 [ 55.585373][ T5069] [ 55.588378][ T5069] Modules linked in: [ 55.592566][ T5069] ---[ end trace 0000000000000000 ]--- [ 55.598052][ T5069] RIP: 0010:gfs2_glock_nq+0xc01/0x13f0 [ 55.603724][ T5069] Code: 03 0f 8e e0 05 00 00 8b 55 18 48 89 de 48 c7 c7 e0 e1 19 8b e8 70 8e c5 fd 48 8b 34 24 ba 01 00 00 00 31 ff e8 e0 52 ff ff 90 <0f> 0b e8 68 b1 e2 fd 48 89 ef e8 c0 91 ff ff 41 89 c4 e9 ae f9 ff [ 55.623412][ T5069] RSP: 0018:ffffc90003a3f968 EFLAGS: 00010286 [ 55.629495][ T5069] RAX: 0000000000000000 RBX: ffff88801a2c9270 RCX: fffff52000747ede [ 55.637446][ T5069] RDX: ffff8880251c0000 RSI: ffffffff83a42ab8 RDI: ffffffff8b1a18d0 [ 55.645433][ T5069] RBP: ffff888075cd68a0 R08: 0000000000000001 R09: 0000000000000000 [ 55.653414][ T5069] R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880794ac000 [ 55.661415][ T5069] R13: 00000000000013cd R14: ffff888027973c18 R15: ffff888027973c00 [ 55.669497][ T5069] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 55.678422][ T5069] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.685038][ T5069] CR2: 00007f1977703130 CR3: 000000000cd77000 CR4: 0000000000350ef0 [ 55.693032][ T5069] Kernel panic - not syncing: Fatal exception [ 55.699454][ T5069] Kernel Offset: disabled [ 55.703762][ T5069] Rebooting in 86400 seconds..