./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3516594484 <...> Warning: Permanently added '10.128.1.145' (ED25519) to the list of known hosts. execve("./syz-executor3516594484", ["./syz-executor3516594484"], 0x7ffff80145a0 /* 10 vars */) = 0 brk(NULL) = 0x5555564e2000 brk(0x5555564e2d00) = 0x5555564e2d00 arch_prctl(ARCH_SET_FS, 0x5555564e2380) = 0 set_tid_address(0x5555564e2650) = 5067 set_robust_list(0x5555564e2660, 24) = 0 rseq(0x5555564e2ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3516594484", 4096) = 28 getrandom("\x39\x21\x5f\xe8\x89\xdd\x8e\x12", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555564e2d00 brk(0x555556503d00) = 0x555556503d00 brk(0x555556504000) = 0x555556504000 mprotect(0x7fa354016000, 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=0x5555564e2650) = 5068 ./strace-static-x86_64: Process 5068 attached [pid 5068] set_robust_list(0x5555564e2660, 24) = 0 [ 77.023895][ T27] audit: type=1400 audit(1703440542.642:83): avc: denied { execmem } for pid=5067 comm="syz-executor351" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [pid 5068] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5068] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5068] setsid() = 1 [pid 5068] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5068] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5068] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5068] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5068] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5068] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5068] unshare(CLONE_NEWNS) = 0 [pid 5068] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5068] unshare(CLONE_NEWIPC) = 0 [pid 5068] unshare(CLONE_NEWCGROUP) = 0 [pid 5068] unshare(CLONE_NEWUTS) = 0 [pid 5068] unshare(CLONE_SYSVSEM) = 0 [pid 5068] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5068] write(3, "16777216", 8) = 8 [pid 5068] close(3) = 0 [pid 5068] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5068] write(3, "536870912", 9) = 9 [pid 5068] close(3) = 0 [ 77.081151][ T27] audit: type=1400 audit(1703440542.702:84): avc: denied { mounton } for pid=5068 comm="syz-executor351" path="/sys/fs/fuse/connections" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1 [ 77.105817][ T27] audit: type=1400 audit(1703440542.702:85): avc: denied { mount } for pid=5068 comm="syz-executor351" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [pid 5068] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5068] write(3, "1024", 4) = 4 [pid 5068] close(3) = 0 [pid 5068] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5068] write(3, "8192", 4) = 4 [pid 5068] close(3) = 0 [pid 5068] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5068] write(3, "1024", 4) = 4 [pid 5068] close(3) = 0 [pid 5068] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5068] write(3, "1024", 4) = 4 [ 77.128395][ T27] audit: type=1400 audit(1703440542.732:86): avc: denied { mounton } for pid=5068 comm="syz-executor351" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [pid 5068] close(3) = 0 [pid 5068] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5068] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5068] close(3) = 0 [pid 5068] getpid() = 1 [pid 5068] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 49 c7 c6 60 a3 e2 8a 4d 89 f4 eb c4 e8 ec 31 60 ff 4d 85 e4 [ 77.810638][ T5068] RSP: 0018:ffffc9000349f918 EFLAGS: 00010293 [ 77.816968][ T5068] RAX: 0000000000000000 RBX: ffff8880788ac000 RCX: ffffffff81695749 [ 77.825046][ T5068] RDX: ffff8880205aa180 RSI: ffffffff82263280 RDI: 0000000000000005 [ 77.833019][ T5068] RBP: ffffc9000349f9e8 R08: 0000000000000005 R09: 0000000000000000 [ 77.840997][ T5068] R10: 0000000080000000 R11: 0000000000000001 R12: ffffffff8ae309e0 [ 77.848959][ T5068] R13: ffffffff8ae31200 R14: ffffffff8ae2a320 R15: 0000000000000213 [ 77.857092][ T5068] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 77.866519][ T5068] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.873248][ T5068] CR2: 00007fa35401a130 CR3: 000000000cd77000 CR4: 00000000003506f0 [ 77.881606][ T5068] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.889681][ T5068] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.897746][ T5068] Call Trace: [ 77.901190][ T5068] [ 77.904120][ T5068] ? show_regs+0x8f/0xa0 [ 77.909231][ T5068] ? die+0x36/0xa0 [ 77.912972][ T5068] ? do_trap+0x22b/0x420 [ 77.917225][ T5068] ? __reiserfs_panic+0x101/0x150 [ 77.922244][ T5068] ? __reiserfs_panic+0x101/0x150 [ 77.927274][ T5068] ? do_error_trap+0xf4/0x230 [ 77.931946][ T5068] ? __reiserfs_panic+0x101/0x150 [ 77.936974][ T5068] ? handle_invalid_op+0x34/0x40 [ 77.941902][ T5068] ? __reiserfs_panic+0x101/0x150 [ 77.947005][ T5068] ? exc_invalid_op+0x2e/0x40 [ 77.951682][ T5068] ? asm_exc_invalid_op+0x1a/0x20 [ 77.956700][ T5068] ? __wake_up_klogd.part.0+0x99/0xf0 [ 77.962062][ T5068] ? __reiserfs_panic+0x100/0x150 [ 77.967085][ T5068] ? __reiserfs_panic+0x101/0x150 [ 77.972281][ T5068] ? __reiserfs_panic+0x100/0x150 [ 77.977401][ T5068] ? reiserfs_debug+0x10/0x10 [ 77.982254][ T5068] do_journal_end+0x4271/0x4f10 [ 77.987216][ T5068] ? reiserfs_prepare_for_journal+0x2b0/0x2b0 [ 77.993294][ T5068] ? dquot_scan_active+0x2f0/0x2f0 [ 77.998486][ T5068] reiserfs_sync_fs+0x10e/0x140 [ 78.003338][ T5068] ? handle_quota_files+0x3b0/0x3b0 [ 78.008681][ T5068] ? get_nr_dirty_inodes+0x176/0x1e0 [ 78.013966][ T5068] ? handle_quota_files+0x3b0/0x3b0 [ 78.019268][ T5068] sync_filesystem+0x109/0x280 [ 78.024032][ T5068] generic_shutdown_super+0x7e/0x3d0 [ 78.029324][ T5068] kill_block_super+0x3b/0x90 [ 78.034093][ T5068] deactivate_locked_super+0xbc/0x1a0 [ 78.039472][ T5068] deactivate_super+0xde/0x100 [ 78.044244][ T5068] cleanup_mnt+0x222/0x450 [ 78.048747][ T5068] task_work_run+0x14d/0x240 [ 78.053331][ T5068] ? task_work_cancel+0x30/0x30 [ 78.058173][ T5068] ? __put_net+0x61/0x70 [ 78.062400][ T5068] do_exit+0xa8a/0x2ad0 [ 78.066557][ T5068] ? do_group_exit+0x1c5/0x2a0 [ 78.071325][ T5068] ? reacquire_held_locks+0x4c0/0x4c0 [ 78.076724][ T5068] ? do_raw_spin_lock+0x12e/0x2b0 [ 78.081764][ T5068] ? mm_update_next_owner+0x840/0x840 [ 78.087255][ T5068] ? spin_bug+0x1d0/0x1d0 [ 78.091599][ T5068] do_group_exit+0xd4/0x2a0 [ 78.096130][ T5068] __x64_sys_exit_group+0x3e/0x50 [ 78.101239][ T5068] do_syscall_64+0x40/0x110 [ 78.105751][ T5068] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 78.111667][ T5068] RIP: 0033:0x7fa353f9f749 [ 78.116090][ T5068] Code: Unable to access opcode bytes at 0x7fa353f9f71f. [ 78.123105][ T5068] RSP: 002b:00007ffffe191138 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 78.131503][ T5068] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fa353f9f749 [ 78.139460][ T5068] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 78.147415][ T5068] RBP: 00007fa35401c2b0 R08: ffffffffffffffb8 R09: 00000000000010ef [ 78.155375][ T5068] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa35401c2b0 [ 78.163369][ T5068] R13: 0000000000000000 R14: 00007fa35401d020 R15: 00007fa353f6dc80 [ 78.171451][ T5068] [ 78.174736][ T5068] Modules linked in: [ 78.181446][ T5068] ---[ end trace 0000000000000000 ]--- [ 78.187830][ T5068] RIP: 0010:__reiserfs_panic+0x101/0x150 [ 78.193538][ T5068] Code: ff 4d 89 e8 4c 89 f1 4c 89 e2 48 8d b3 60 06 00 00 49 c7 c1 20 2e 8c 92 48 c7 c7 c0 a4 e2 8a e8 35 0e 43 ff e8 00 32 60 ff 90 <0f> 0b 49 c7 c6 60 a3 e2 8a 4d 89 f4 eb c4 e8 ec 31 60 ff 4d 85 e4 [ 78.213392][ T5068] RSP: 0018:ffffc9000349f918 EFLAGS: 00010293 [ 78.219623][ T5068] RAX: 0000000000000000 RBX: ffff8880788ac000 RCX: ffffffff81695749 [ 78.227629][ T5068] RDX: ffff8880205aa180 RSI: ffffffff82263280 RDI: 0000000000000005 [ 78.235629][ T5068] RBP: ffffc9000349f9e8 R08: 0000000000000005 R09: 0000000000000000 [ 78.243811][ T5068] R10: 0000000080000000 R11: 0000000000000001 R12: ffffffff8ae309e0 [ 78.252664][ T5068] R13: ffffffff8ae31200 R14: ffffffff8ae2a320 R15: 0000000000000213 [ 78.260766][ T5068] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 78.269876][ T5068] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 78.276505][ T5068] CR2: 00007fa35401a130 CR3: 000000000cd77000 CR4: 00000000003506f0 [ 78.284968][ T5068] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.293347][ T5068] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.302124][ T5068] Kernel panic - not syncing: Fatal exception [ 78.308285][ T5068] Kernel Offset: disabled [ 78.312621][ T5068] Rebooting in 86400 seconds..