./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3519615333 <...> Warning: Permanently added '10.128.1.154' (ED25519) to the list of known hosts. execve("./syz-executor3519615333", ["./syz-executor3519615333"], 0x7ffc5197ee80 /* 10 vars */) = 0 brk(NULL) = 0x5555568f9000 brk(0x5555568f9d00) = 0x5555568f9d00 arch_prctl(ARCH_SET_FS, 0x5555568f9380) = 0 set_tid_address(0x5555568f9650) = 297 set_robust_list(0x5555568f9660, 24) = 0 rseq(0x5555568f9ca0, 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-executor3519615333", 4096) = 28 getrandom("\x04\x22\x50\x0b\xfc\xfb\x19\xa6", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555568f9d00 brk(0x55555691ad00) = 0x55555691ad00 brk(0x55555691b000) = 0x55555691b000 mprotect(0x7ff039f77000, 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=0x5555568f9650) = 298 ./strace-static-x86_64: Process 298 attached [pid 298] set_robust_list(0x5555568f9660, 24) = 0 [pid 298] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] setsid() = 1 [pid 298] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 298] unshare(CLONE_NEWNS) = 0 [pid 298] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 298] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 298] unshare(CLONE_NEWCGROUP) = 0 [pid 298] unshare(CLONE_NEWUTS) = 0 [pid 298] unshare(CLONE_SYSVSEM) = 0 [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] getpid() = 1 [pid 298] 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 [ 24.203079][ T298] RSP: 0018:ffffc90000f37a58 EFLAGS: 00010293 [ 24.208975][ T298] RAX: ffffffff81c9210b RBX: ffff88811f5639c0 RCX: ffff888109608000 [ 24.216786][ T298] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 24.224599][ T298] RBP: ffffc90000f37ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 24.232425][ T298] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88811f566110 [ 24.240225][ T298] R13: 1ffff11023eacc22 R14: ffff88810056af28 R15: dffffc0000000000 [ 24.248037][ T298] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 24.256803][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.263230][ T298] CR2: 00007ff039f7b130 CR3: 0000000006e0f000 CR4: 00000000003506b0 [ 24.271100][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.279128][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.286936][ T298] Call Trace: [ 24.290066][ T298] [ 24.292933][ T298] ? __die_body+0x62/0xb0 [ 24.297182][ T298] ? die+0x88/0xb0 [ 24.300741][ T298] ? do_trap+0x103/0x330 [ 24.304916][ T298] ? may_delete+0x6eb/0x6f0 [ 24.309333][ T298] ? handle_invalid_op+0x95/0xc0 [ 24.314105][ T298] ? may_delete+0x6eb/0x6f0 [ 24.318450][ T298] ? exc_invalid_op+0x32/0x50 [ 24.323504][ T298] ? asm_exc_invalid_op+0x1b/0x20 [ 24.328433][ T298] ? may_delete+0x7f/0x6f0 [ 24.332767][ T298] ? may_delete+0x6eb/0x6f0 [ 24.337111][ T298] ? may_delete+0x6eb/0x6f0 [ 24.341541][ T298] ? may_delete+0x6eb/0x6f0 [ 24.345881][ T298] vfs_rmdir+0x32/0x500 [ 24.349951][ T298] ? generic_shutdown_super+0x2b8/0x370 [ 24.355345][ T298] incfs_kill_sb+0x113/0x230 [ 24.359950][ T298] deactivate_locked_super+0xad/0x110 [ 24.365263][ T298] deactivate_super+0xbe/0xf0 [ 24.369765][ T298] cleanup_mnt+0x485/0x510 [ 24.374013][ T298] __cleanup_mnt+0x19/0x20 [ 24.378408][ T298] task_work_run+0x24d/0x2e0 [ 24.382928][ T298] ? kmem_cache_free+0x291/0x510 [ 24.387676][ T298] ? task_work_cancel+0x2b0/0x2b0 [ 24.392545][ T298] ? free_nsproxy+0x20d/0x260 [ 24.397047][ T298] ? exit_task_namespaces+0xb4/0xd0 [ 24.402091][ T298] do_exit+0xbd5/0x2b80 [ 24.406163][ T298] ? put_task_struct+0x80/0x80 [ 24.410762][ T298] ? __kasan_check_write+0x14/0x20 [ 24.415706][ T298] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 24.420656][ T298] ? _raw_spin_lock_irqsave+0x210/0x210 [ 24.426038][ T298] ? zap_other_threads+0x29c/0x2d0 [ 24.430987][ T298] do_group_exit+0x21a/0x2d0 [ 24.435526][ T298] __x64_sys_exit_group+0x3f/0x40 [ 24.440390][ T298] do_syscall_64+0x3d/0xb0 [ 24.444636][ T298] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 24.450469][ T298] RIP: 0033:0x7ff039f00e09 [ 24.454717][ T298] Code: Unable to access opcode bytes at 0x7ff039f00ddf. [ 24.461562][ T298] RSP: 002b:00007ffe26a15fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 24.469808][ T298] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007ff039f00e09 [ 24.477705][ T298] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 24.485518][ T298] RBP: 00007ff039f7d370 R08: ffffffffffffffb8 R09: 0000000000000006 [ 24.493414][ T298] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff039f7d370 [ 24.501236][ T298] R13: 0000000000000000 R14: 00007ff039f7e0e0 R15: 00007ff039ecf0d0 [ 24.509165][ T298] [ 24.512106][ T298] Modules linked in: [ 24.515989][ T298] ---[ end trace 0000000000000000 ]--- [ 24.521369][ T298] RIP: 0010:may_delete+0x6eb/0x6f0 [ 24.526309][ T298] 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 [ 24.545874][ T298] RSP: 0018:ffffc90000f37a58 EFLAGS: 00010293 [ 24.551794][ T298] RAX: ffffffff81c9210b RBX: ffff88811f5639c0 RCX: ffff888109608000 [ 24.559588][ T298] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 24.567405][ T298] RBP: ffffc90000f37ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 24.575283][ T298] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88811f566110 [ 24.583126][ T298] R13: 1ffff11023eacc22 R14: ffff88810056af28 R15: dffffc0000000000 [ 24.590912][ T298] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 24.599824][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.606305][ T298] CR2: 00007ff031b03000 CR3: 000000010f40b000 CR4: 00000000003506a0 [ 24.614240][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.622158][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.629991][ T298] Kernel panic - not syncing: Fatal exception [ 24.636091][ T298] Kernel Offset: disabled [ 24.640226][ T298] Rebooting in 86400 seconds..