./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1891761416 <...> Warning: Permanently added '10.128.1.194' (ED25519) to the list of known hosts. execve("./syz-executor1891761416", ["./syz-executor1891761416"], 0x7ffc0a92a9d0 /* 10 vars */) = 0 brk(NULL) = 0x5555557c1000 brk(0x5555557c1d00) = 0x5555557c1d00 arch_prctl(ARCH_SET_FS, 0x5555557c1380) = 0 set_tid_address(0x5555557c1650) = 294 set_robust_list(0x5555557c1660, 24) = 0 rseq(0x5555557c1ca0, 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-executor1891761416", 4096) = 28 getrandom("\x00\x34\x94\x22\x18\xc5\x43\xe9", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555557c1d00 brk(0x5555557e2d00) = 0x5555557e2d00 brk(0x5555557e3000) = 0x5555557e3000 mprotect(0x7f83f8e7e000, 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 295 attached , child_tidptr=0x5555557c1650) = 295 [pid 295] set_robust_list(0x5555557c1660, 24) = 0 [pid 295] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 295] setsid() = 1 [pid 295] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 295] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 295] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 295] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 295] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 295] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 295] unshare(CLONE_NEWNS) = 0 [pid 295] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 295] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 295] unshare(CLONE_NEWCGROUP) = 0 [pid 295] unshare(CLONE_NEWUTS) = 0 [pid 295] unshare(CLONE_SYSVSEM) = 0 [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] getpid() = 1 [pid 295] 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 [ 22.750351][ T295] RSP: 0018:ffffc90000ed7a58 EFLAGS: 00010293 [ 22.756855][ T295] RAX: ffffffff81c9210b RBX: ffff888120132cf0 RCX: ffff8881095c1440 [ 22.764873][ T295] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 22.773201][ T295] RBP: ffffc90000ed7ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 22.781302][ T295] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888120132110 [ 22.789606][ T295] R13: 1ffff11024026422 R14: ffff888100571290 R15: dffffc0000000000 [ 22.798094][ T295] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 22.807282][ T295] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.813870][ T295] CR2: 00007f83f8e82130 CR3: 0000000006e0f000 CR4: 00000000003506b0 [ 22.821678][ T295] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.829553][ T295] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.837849][ T295] Call Trace: [ 22.841155][ T295] [ 22.844137][ T295] ? __die_body+0x62/0xb0 [ 22.848756][ T295] ? die+0x88/0xb0 [ 22.852998][ T295] ? do_trap+0x103/0x330 [ 22.857074][ T295] ? may_delete+0x6eb/0x6f0 [ 22.861405][ T295] ? handle_invalid_op+0x95/0xc0 [ 22.866175][ T295] ? may_delete+0x6eb/0x6f0 [ 22.870517][ T295] ? exc_invalid_op+0x32/0x50 [ 22.875366][ T295] ? asm_exc_invalid_op+0x1b/0x20 [ 22.880218][ T295] ? may_delete+0x7f/0x6f0 [ 22.884580][ T295] ? may_delete+0x6eb/0x6f0 [ 22.889125][ T295] ? may_delete+0x6eb/0x6f0 [ 22.893644][ T295] ? may_delete+0x6eb/0x6f0 [ 22.898086][ T295] vfs_rmdir+0x32/0x500 [ 22.902056][ T295] ? generic_shutdown_super+0x2b8/0x370 [ 22.907438][ T295] incfs_kill_sb+0x113/0x230 [ 22.911885][ T295] deactivate_locked_super+0xad/0x110 [ 22.917333][ T295] deactivate_super+0xbe/0xf0 [ 22.921952][ T295] cleanup_mnt+0x485/0x510 [ 22.926182][ T295] __cleanup_mnt+0x19/0x20 [ 22.930437][ T295] task_work_run+0x24d/0x2e0 [ 22.934862][ T295] ? kmem_cache_free+0x291/0x510 [ 22.939639][ T295] ? task_work_cancel+0x2b0/0x2b0 [ 22.944496][ T295] ? free_nsproxy+0x20d/0x260 [ 22.949008][ T295] ? exit_task_namespaces+0xb4/0xd0 [ 22.954055][ T295] do_exit+0xbd5/0x2b80 [ 22.958042][ T295] ? put_task_struct+0x80/0x80 [ 22.962764][ T295] ? __kasan_check_write+0x14/0x20 [ 22.967671][ T295] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 22.972972][ T295] ? _raw_spin_lock_irqsave+0x210/0x210 [ 22.978568][ T295] ? zap_other_threads+0x29c/0x2d0 [ 22.983694][ T295] do_group_exit+0x21a/0x2d0 [ 22.988397][ T295] __x64_sys_exit_group+0x3f/0x40 [ 22.993261][ T295] do_syscall_64+0x3d/0xb0 [ 22.997466][ T295] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 23.003190][ T295] RIP: 0033:0x7f83f8e07e09 [ 23.007442][ T295] Code: Unable to access opcode bytes at 0x7f83f8e07ddf. [ 23.014304][ T295] RSP: 002b:00007ffffb85bfd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.022592][ T295] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f83f8e07e09 [ 23.030357][ T295] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 23.038441][ T295] RBP: 00007f83f8e84370 R08: ffffffffffffffb8 R09: 0000000000000006 [ 23.046486][ T295] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f83f8e84370 [ 23.054295][ T295] R13: 0000000000000000 R14: 00007f83f8e850e0 R15: 00007f83f8dd60d0 [ 23.062413][ T295] [ 23.065272][ T295] Modules linked in: [ 23.069178][ T295] ---[ end trace 0000000000000000 ]--- [ 23.074525][ T295] RIP: 0010:may_delete+0x6eb/0x6f0 [ 23.079824][ T295] 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 [ 23.099998][ T295] RSP: 0018:ffffc90000ed7a58 EFLAGS: 00010293 [ 23.106260][ T295] RAX: ffffffff81c9210b RBX: ffff888120132cf0 RCX: ffff8881095c1440 [ 23.114530][ T295] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 23.122443][ T295] RBP: ffffc90000ed7ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 23.130431][ T295] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888120132110 [ 23.138228][ T295] R13: 1ffff11024026422 R14: ffff888100571290 R15: dffffc0000000000 [ 23.146876][ T295] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 23.156112][ T295] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.162759][ T295] CR2: 0000559600199008 CR3: 0000000006e0f000 CR4: 00000000003506a0 [ 23.170601][ T295] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.179218][ T295] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.187289][ T295] Kernel panic - not syncing: Fatal exception [ 23.193531][ T295] Kernel Offset: disabled [ 23.197675][ T295] Rebooting in 86400 seconds..