./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2221400857 <...> Warning: Permanently added '10.128.0.224' (ED25519) to the list of known hosts. execve("./syz-executor2221400857", ["./syz-executor2221400857"], 0x7ffed2ce3140 /* 10 vars */) = 0 brk(NULL) = 0x555556597000 brk(0x555556597d00) = 0x555556597d00 arch_prctl(ARCH_SET_FS, 0x555556597380) = 0 set_tid_address(0x555556597650) = 298 set_robust_list(0x555556597660, 24) = 0 rseq(0x555556597ca0, 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-executor2221400857", 4096) = 28 getrandom("\x54\xdf\xa5\xe9\xa4\xec\xc0\x20", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556597d00 brk(0x5555565b8d00) = 0x5555565b8d00 brk(0x5555565b9000) = 0x5555565b9000 mprotect(0x7f5dd086e000, 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=0x555556597650) = 299 ./strace-static-x86_64: Process 299 attached [pid 299] set_robust_list(0x555556597660, 24) = 0 [pid 299] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 299] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 299] setsid() = 1 [pid 299] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 299] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 299] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 299] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 299] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 299] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 299] unshare(CLONE_NEWNS) = 0 [pid 299] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 299] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 299] unshare(CLONE_NEWCGROUP) = 0 [pid 299] unshare(CLONE_NEWUTS) = 0 [pid 299] unshare(CLONE_SYSVSEM) = 0 [pid 299] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 299] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 299] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 299] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 299] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 299] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 299] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 299] getpid() = 1 [pid 299] 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 b1 64 ac ff 4c 8d [ 24.667810][ T299] RSP: 0018:ffffc90000db7a58 EFLAGS: 00010293 [ 24.673802][ T299] RAX: ffffffff81c9210b RBX: ffff8881201367a0 RCX: ffff888109528000 [ 24.681608][ T299] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 24.689422][ T299] RBP: ffffc90000db7ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 24.697249][ T299] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888120136440 [ 24.705135][ T299] R13: 1ffff11024026c88 R14: ffff88810bc31290 R15: dffffc0000000000 [ 24.712947][ T299] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 24.721716][ T299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.728132][ T299] CR2: 000056190dac8f18 CR3: 000000010f2a1000 CR4: 00000000003506a0 [ 24.735945][ T299] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.743755][ T299] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.751566][ T299] Call Trace: [ 24.754691][ T299] [ 24.757470][ T299] ? __die_body+0x62/0xb0 [ 24.761633][ T299] ? die+0x88/0xb0 [ 24.765192][ T299] ? do_trap+0x103/0x330 [ 24.769283][ T299] ? may_delete+0x6eb/0x6f0 [ 24.773701][ T299] ? handle_invalid_op+0x95/0xc0 [ 24.778475][ T299] ? may_delete+0x6eb/0x6f0 [ 24.782816][ T299] ? exc_invalid_op+0x32/0x50 [ 24.787328][ T299] ? asm_exc_invalid_op+0x1b/0x20 [ 24.792273][ T299] ? may_delete+0x7f/0x6f0 [ 24.796525][ T299] ? may_delete+0x6eb/0x6f0 [ 24.800863][ T299] ? may_delete+0x6eb/0x6f0 [ 24.805203][ T299] ? may_delete+0x6eb/0x6f0 [ 24.809545][ T299] vfs_rmdir+0x32/0x500 [ 24.813536][ T299] ? generic_shutdown_super+0x2b8/0x370 [ 24.818919][ T299] incfs_kill_sb+0x113/0x230 [ 24.823345][ T299] deactivate_locked_super+0xad/0x110 [ 24.828552][ T299] deactivate_super+0xbe/0xf0 [ 24.833064][ T299] cleanup_mnt+0x485/0x510 [ 24.837322][ T299] __cleanup_mnt+0x19/0x20 [ 24.841577][ T299] task_work_run+0x24d/0x2e0 [ 24.846002][ T299] ? kmem_cache_free+0x291/0x510 [ 24.850774][ T299] ? task_work_cancel+0x2b0/0x2b0 [ 24.855630][ T299] ? free_nsproxy+0x20d/0x260 [ 24.860176][ T299] ? exit_task_namespaces+0xb4/0xd0 [ 24.865180][ T299] do_exit+0xbd5/0x2b80 [ 24.869172][ T299] ? put_task_struct+0x80/0x80 [ 24.873800][ T299] ? __kasan_check_write+0x14/0x20 [ 24.878719][ T299] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 24.883664][ T299] ? _raw_spin_lock_irqsave+0x210/0x210 [ 24.889048][ T299] ? zap_other_threads+0x29c/0x2d0 [ 24.894080][ T299] do_group_exit+0x21a/0x2d0 [ 24.898510][ T299] __x64_sys_exit_group+0x3f/0x40 [ 24.903455][ T299] do_syscall_64+0x3d/0xb0 [ 24.907710][ T299] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 24.913437][ T299] RIP: 0033:0x7f5dd07f7e09 [ 24.917690][ T299] Code: Unable to access opcode bytes at 0x7f5dd07f7ddf. [ 24.924546][ T299] RSP: 002b:00007ffdbbec5078 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 24.932795][ T299] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f5dd07f7e09 [ 24.940605][ T299] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 24.948415][ T299] RBP: 00007f5dd0874370 R08: ffffffffffffffb8 R09: 0000000000000006 [ 24.956225][ T299] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5dd0874370 [ 24.964154][ T299] R13: 0000000000000000 R14: 00007f5dd08750e0 R15: 00007f5dd07c60d0 [ 24.971981][ T299] [ 24.974830][ T299] Modules linked in: [ 24.978692][ T299] ---[ end trace 0000000000000000 ]--- [ 24.983978][ T299] RIP: 0010:may_delete+0x6eb/0x6f0 [ 24.989136][ T299] Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 7f fe ff ff 4c 89 e7 e8 66 71 f3 ff e9 72 fe ff ff e8 cc 64 ac ff 0f 0b e8 c5 64 ac ff <0f> 0b 0f 1f 00 55 48 89 e5 41 56 53 48 89 fb e8 b1 64 ac ff 4c 8d [ 25.008884][ T299] RSP: 0018:ffffc90000db7a58 EFLAGS: 00010293 [ 25.014763][ T299] RAX: ffffffff81c9210b RBX: ffff8881201367a0 RCX: ffff888109528000 [ 25.022620][ T299] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 25.030507][ T299] RBP: ffffc90000db7ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 25.038494][ T299] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888120136440 [ 25.046376][ T299] R13: 1ffff11024026c88 R14: ffff88810bc31290 R15: dffffc0000000000 [ 25.054212][ T299] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 25.062971][ T299] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.069392][ T299] CR2: 000056190dac8f18 CR3: 000000010f4d7000 CR4: 00000000003506a0 [ 25.077207][ T299] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.085005][ T299] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.092920][ T299] Kernel panic - not syncing: Fatal exception [ 25.098798][ T299] Kernel Offset: disabled [ 25.102882][ T299] Rebooting in 86400 seconds..