./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2565207817 <...> Warning: Permanently added '10.128.0.10' (ED25519) to the list of known hosts. execve("./syz-executor2565207817", ["./syz-executor2565207817"], 0x7ffdc9d6dd00 /* 10 vars */) = 0 brk(NULL) = 0x555587a3b000 brk(0x555587a3bd00) = 0x555587a3bd00 arch_prctl(ARCH_SET_FS, 0x555587a3b380) = 0 set_tid_address(0x555587a3b650) = 295 set_robust_list(0x555587a3b660, 24) = 0 rseq(0x555587a3bca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2565207817", 4096) = 28 getrandom("\xb8\x60\x4a\xc7\x5b\x03\x2a\xc4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555587a3bd00 brk(0x555587a5cd00) = 0x555587a5cd00 brk(0x555587a5d000) = 0x555587a5d000 mprotect(0x7f0e7f5a5000, 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=0x555587a3b650) = 296 ./strace-static-x86_64: Process 296 attached [pid 296] set_robust_list(0x555587a3b660, 24) = 0 [pid 296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 296] getppid() = 0 [pid 296] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 296] unshare(CLONE_NEWNS) = 0 [pid 296] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 296] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 296] unshare(CLONE_NEWCGROUP) = 0 [pid 296] unshare(CLONE_NEWUTS) = 0 [pid 296] unshare(CLONE_SYSVSEM) = 0 [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] getpid() = 1 [pid 296] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 0f 1f 00 55 48 89 e5 41 56 53 48 89 fb e8 91 17 b2 ff 4c 8d [ 25.003341][ T296] RSP: 0018:ffffc90000957af0 EFLAGS: 00010293 [ 25.009239][ T296] RAX: ffffffff81be4f0b RBX: ffff888120e56690 RCX: ffff88810c7da780 [ 25.017048][ T296] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 25.024863][ T296] RBP: ffffc90000957b58 R08: ffffffff81be489f R09: 0000000000000003 [ 25.032711][ T296] R10: fffff5200012af40 R11: dffffc0000000001 R12: ffff888120ece660 [ 25.040578][ T296] R13: 1ffff110241d9ccc R14: ffff888111177060 R15: dffffc0000000000 [ 25.048384][ T296] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 25.057148][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.063575][ T296] CR2: 00007f0e7f5a9130 CR3: 0000000006a0f000 CR4: 00000000003506a0 [ 25.071383][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.079225][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.087003][ T296] Call Trace: [ 25.090131][ T296] [ 25.093109][ T296] ? __die_body+0x62/0xb0 [ 25.097268][ T296] ? die+0x88/0xb0 [ 25.100835][ T296] ? do_trap+0x103/0x330 [ 25.104910][ T296] ? may_delete+0x6eb/0x6f0 [ 25.109244][ T296] ? handle_invalid_op+0x95/0xc0 [ 25.114017][ T296] ? may_delete+0x6eb/0x6f0 [ 25.118356][ T296] ? exc_invalid_op+0x32/0x50 [ 25.122960][ T296] ? asm_exc_invalid_op+0x1b/0x20 [ 25.127819][ T296] ? may_delete+0x7f/0x6f0 [ 25.132078][ T296] ? may_delete+0x6eb/0x6f0 [ 25.136410][ T296] ? may_delete+0x6eb/0x6f0 [ 25.140755][ T296] vfs_rmdir+0x32/0x470 [ 25.144743][ T296] incfs_kill_sb+0x113/0x230 [ 25.149169][ T296] deactivate_locked_super+0xad/0x110 [ 25.154376][ T296] deactivate_super+0xbe/0xf0 [ 25.158900][ T296] cleanup_mnt+0x45c/0x510 [ 25.163233][ T296] __cleanup_mnt+0x19/0x20 [ 25.167494][ T296] task_work_run+0x129/0x190 [ 25.171909][ T296] do_exit+0xc48/0x2ca0 [ 25.175904][ T296] ? put_task_struct+0x80/0x80 [ 25.180501][ T296] ? _raw_spin_unlock_irq+0x4e/0x70 [ 25.185535][ T296] ? ptrace_notify+0x24c/0x350 [ 25.190134][ T296] ? do_notify_parent+0xa30/0xa30 [ 25.194995][ T296] do_group_exit+0x141/0x310 [ 25.199423][ T296] __x64_sys_exit_group+0x3f/0x40 [ 25.204281][ T296] x64_sys_call+0x610/0x9a0 [ 25.208630][ T296] do_syscall_64+0x3b/0xb0 [ 25.212878][ T296] ? clear_bhb_loop+0x35/0x90 [ 25.217390][ T296] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 25.223119][ T296] RIP: 0033:0x7f0e7f52eec9 [ 25.227370][ T296] Code: Unable to access opcode bytes at RIP 0x7f0e7f52ee9f. [ 25.234571][ T296] RSP: 002b:00007fffa3b755a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 25.242817][ T296] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f0e7f52eec9 [ 25.250653][ T296] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 25.258440][ T296] RBP: 00007f0e7f5ab370 R08: ffffffffffffffb8 R09: 0000000000000006 [ 25.266252][ T296] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0e7f5ab370 [ 25.274157][ T296] R13: 0000000000000000 R14: 00007f0e7f5ac0e0 R15: 00007f0e7f4fd190 [ 25.281968][ T296] [ 25.284825][ T296] Modules linked in: [ 25.288686][ T296] ---[ end trace 5da913e3c369b399 ]--- [ 25.293998][ T296] RIP: 0010:may_delete+0x6eb/0x6f0 [ 25.299097][ T296] Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 7f fe ff ff 4c 89 e7 e8 c6 6f f4 ff e9 72 fe ff ff e8 ac 17 b2 ff 0f 0b e8 a5 17 b2 ff <0f> 0b 0f 1f 00 55 48 89 e5 41 56 53 48 89 fb e8 91 17 b2 ff 4c 8d [ 25.318552][ T296] RSP: 0018:ffffc90000957af0 EFLAGS: 00010293 [ 25.324431][ T296] RAX: ffffffff81be4f0b RBX: ffff888120e56690 RCX: ffff88810c7da780 [ 25.332262][ T296] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 25.340062][ T296] RBP: ffffc90000957b58 R08: ffffffff81be489f R09: 0000000000000003 [ 25.347865][ T296] R10: fffff5200012af40 R11: dffffc0000000001 R12: ffff888120ece660 [ 25.355853][ T296] R13: 1ffff110241d9ccc R14: ffff888111177060 R15: dffffc0000000000 [ 25.363631][ T296] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 25.372414][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.378804][ T296] CR2: 00007f0e7f5a9130 CR3: 0000000006a0f000 CR4: 00000000003506a0 [ 25.386645][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.394443][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.402277][ T296] Kernel panic - not syncing: Fatal exception [ 25.408411][ T296] Kernel Offset: disabled [ 25.412539][ T296] Rebooting in 86400 seconds..