./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor347602545 <...> Warning: Permanently added '10.128.0.41' (ED25519) to the list of known hosts. execve("./syz-executor347602545", ["./syz-executor347602545"], 0x7ffe81ff1ce0 /* 10 vars */) = 0 brk(NULL) = 0x555556377000 brk(0x555556377d00) = 0x555556377d00 arch_prctl(ARCH_SET_FS, 0x555556377380) = 0 set_tid_address(0x555556377650) = 296 set_robust_list(0x555556377660, 24) = 0 rseq(0x555556377ca0, 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-executor347602545", 4096) = 27 getrandom("\x4a\x60\xcb\xb9\xd4\xc2\xaa\x22", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556377d00 brk(0x555556398d00) = 0x555556398d00 brk(0x555556399000) = 0x555556399000 mprotect(0x7f10532f8000, 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=0x555556377650) = 297 ./strace-static-x86_64: Process 297 attached [pid 297] set_robust_list(0x555556377660, 24) = 0 [pid 297] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 297] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 297] setsid() = 1 [pid 297] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 297] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 297] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 297] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 297] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 297] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 297] unshare(CLONE_NEWNS) = 0 [pid 297] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 297] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 297] unshare(CLONE_NEWCGROUP) = 0 [pid 297] unshare(CLONE_NEWUTS) = 0 [pid 297] unshare(CLONE_SYSVSEM) = 0 [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 297] getpid() = 1 [pid 297] 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 [ 22.855999][ T297] RSP: 0018:ffffc90000eb7a58 EFLAGS: 00010293 [ 22.861898][ T297] RAX: ffffffff81c9210b RBX: ffff88811f982250 RCX: ffff888109583cc0 [ 22.869707][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 22.877522][ T297] RBP: ffffc90000eb7ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 22.885331][ T297] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88811f982770 [ 22.893144][ T297] R13: 1ffff11023f304ee R14: ffff88810bc62970 R15: dffffc0000000000 [ 22.900953][ T297] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 22.909813][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.916231][ T297] CR2: 00007f10532fc130 CR3: 0000000006e0f000 CR4: 00000000003506a0 [ 22.924048][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.931853][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.939668][ T297] Call Trace: [ 22.942788][ T297] [ 22.945567][ T297] ? __die_body+0x62/0xb0 [ 22.949734][ T297] ? die+0x88/0xb0 [ 22.953301][ T297] ? do_trap+0x103/0x330 [ 22.957370][ T297] ? may_delete+0x6eb/0x6f0 [ 22.961713][ T297] ? handle_invalid_op+0x95/0xc0 [ 22.966484][ T297] ? may_delete+0x6eb/0x6f0 [ 22.970823][ T297] ? exc_invalid_op+0x32/0x50 [ 22.975344][ T297] ? asm_exc_invalid_op+0x1b/0x20 [ 22.980224][ T297] ? may_delete+0x7f/0x6f0 [ 22.984452][ T297] ? may_delete+0x6eb/0x6f0 [ 22.988790][ T297] ? may_delete+0x6eb/0x6f0 [ 22.993131][ T297] ? may_delete+0x6eb/0x6f0 [ 22.997469][ T297] vfs_rmdir+0x32/0x500 [ 23.001459][ T297] ? generic_shutdown_super+0x2b8/0x370 [ 23.006843][ T297] incfs_kill_sb+0x113/0x230 [ 23.011268][ T297] deactivate_locked_super+0xad/0x110 [ 23.016482][ T297] deactivate_super+0xbe/0xf0 [ 23.020993][ T297] cleanup_mnt+0x485/0x510 [ 23.025241][ T297] __cleanup_mnt+0x19/0x20 [ 23.029507][ T297] task_work_run+0x24d/0x2e0 [ 23.033919][ T297] ? kmem_cache_free+0x291/0x510 [ 23.038696][ T297] ? task_work_cancel+0x2b0/0x2b0 [ 23.043556][ T297] ? free_nsproxy+0x20d/0x260 [ 23.048068][ T297] ? exit_task_namespaces+0xb4/0xd0 [ 23.053104][ T297] do_exit+0xbd5/0x2b80 [ 23.057096][ T297] ? put_task_struct+0x80/0x80 [ 23.061696][ T297] ? __kasan_check_write+0x14/0x20 [ 23.066644][ T297] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 23.071590][ T297] ? _raw_spin_lock_irqsave+0x210/0x210 [ 23.076970][ T297] ? zap_other_threads+0x29c/0x2d0 [ 23.081921][ T297] do_group_exit+0x21a/0x2d0 [ 23.086344][ T297] __x64_sys_exit_group+0x3f/0x40 [ 23.091204][ T297] do_syscall_64+0x3d/0xb0 [ 23.095457][ T297] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 23.101188][ T297] RIP: 0033:0x7f1053281e09 [ 23.105439][ T297] Code: Unable to access opcode bytes at 0x7f1053281ddf. [ 23.112293][ T297] RSP: 002b:00007ffef0ace438 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.120540][ T297] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f1053281e09 [ 23.128352][ T297] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 23.136165][ T297] RBP: 00007f10532fe370 R08: ffffffffffffffb8 R09: 0000000000000006 [ 23.143976][ T297] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f10532fe370 [ 23.151786][ T297] R13: 0000000000000000 R14: 00007f10532ff0e0 R15: 00007f10532500d0 [ 23.159599][ T297] [ 23.162468][ T297] Modules linked in: [ 23.166354][ T297] ---[ end trace 0000000000000000 ]--- [ 23.171824][ T297] RIP: 0010:may_delete+0x6eb/0x6f0 [ 23.176742][ T297] 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 [ 23.196232][ T297] RSP: 0018:ffffc90000eb7a58 EFLAGS: 00010293 [ 23.202196][ T297] RAX: ffffffff81c9210b RBX: ffff88811f982250 RCX: ffff888109583cc0 [ 23.209994][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 23.217844][ T297] RBP: ffffc90000eb7ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 23.225626][ T297] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88811f982770 [ 23.233460][ T297] R13: 1ffff11023f304ee R14: ffff88810bc62970 R15: dffffc0000000000 [ 23.241249][ T297] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 23.250000][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.256453][ T297] CR2: 00007f10532fc130 CR3: 0000000006e0f000 CR4: 00000000003506a0 [ 23.264264][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.272105][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.279855][ T297] Kernel panic - not syncing: Fatal exception [ 23.286062][ T297] Kernel Offset: disabled [ 23.290180][ T297] Rebooting in 86400 seconds..