./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2074952845 <...> Warning: Permanently added '10.128.0.144' (ED25519) to the list of known hosts. execve("./syz-executor2074952845", ["./syz-executor2074952845"], 0x7fff767d4160 /* 10 vars */) = 0 brk(NULL) = 0x5555583d1000 brk(0x5555583d1d00) = 0x5555583d1d00 arch_prctl(ARCH_SET_FS, 0x5555583d1380) = 0 set_tid_address(0x5555583d1650) = 289 set_robust_list(0x5555583d1660, 24) = 0 rseq(0x5555583d1ca0, 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-executor2074952845", 4096) = 28 getrandom("\x27\x50\xbf\xfb\x23\x28\xc4\x1f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555583d1d00 brk(0x5555583f2d00) = 0x5555583f2d00 brk(0x5555583f3000) = 0x5555583f3000 mprotect(0x7f7486e2a000, 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=0x5555583d1650) = 290 ./strace-static-x86_64: Process 290 attached [pid 290] set_robust_list(0x5555583d1660, 24) = 0 [pid 290] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 290] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 290] setsid() = 1 [pid 290] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 290] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 290] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 290] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 290] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 290] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 290] unshare(CLONE_NEWNS) = 0 [pid 290] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 290] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 290] unshare(CLONE_NEWCGROUP) = 0 [pid 290] unshare(CLONE_NEWUTS) = 0 [pid 290] unshare(CLONE_SYSVSEM) = 0 [pid 290] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 290] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 290] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 290] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 290] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 290] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 290] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 290] getpid() = 1 [pid 290] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 [ 23.569324][ T290] RSP: 0018:ffffc90000ae7ad8 EFLAGS: 00010293 [ 23.575220][ T290] RAX: ffffffff81b414b5 RBX: ffff88811cae9690 RCX: ffff88811fe74f00 [ 23.583033][ T290] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 23.590845][ T290] RBP: ffffc90000ae7b58 R08: ffffffff81b40dd3 R09: 0000000000000003 [ 23.598654][ T290] R10: fffff5200015cf40 R11: dffffc0000000001 R12: 0000000000000001 [ 23.606478][ T290] R13: ffff88811cac9dd0 R14: ffff88811cb5ce60 R15: dffffc0000000000 [ 23.614279][ T290] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 23.623042][ T290] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.629578][ T290] CR2: 00007f7486e2e130 CR3: 000000010ce87000 CR4: 00000000003506a0 [ 23.637388][ T290] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.645198][ T290] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.653009][ T290] Call Trace: [ 23.656156][ T290] ? __die_body+0x62/0xb0 [ 23.660302][ T290] ? die+0x88/0xb0 [ 23.663858][ T290] ? do_trap+0x1a4/0x310 [ 23.667943][ T290] ? may_delete+0x755/0x760 [ 23.672279][ T290] ? handle_invalid_op+0x95/0xc0 [ 23.677052][ T290] ? may_delete+0x755/0x760 [ 23.681392][ T290] ? exc_invalid_op+0x32/0x50 [ 23.685906][ T290] ? asm_exc_invalid_op+0x12/0x20 [ 23.690767][ T290] ? may_delete+0x73/0x760 [ 23.695017][ T290] ? may_delete+0x755/0x760 [ 23.699359][ T290] ? may_delete+0x755/0x760 [ 23.703697][ T290] ? may_delete+0x755/0x760 [ 23.708039][ T290] vfs_rmdir+0x2c/0x3f0 [ 23.712031][ T290] incfs_kill_sb+0x108/0x220 [ 23.716467][ T290] deactivate_locked_super+0xad/0x110 [ 23.721668][ T290] deactivate_super+0xbe/0xf0 [ 23.726182][ T290] cleanup_mnt+0x45c/0x510 [ 23.730430][ T290] __cleanup_mnt+0x19/0x20 [ 23.734684][ T290] task_work_run+0x129/0x190 [ 23.739119][ T290] do_exit+0xc83/0x2a50 [ 23.743102][ T290] ? put_task_struct+0x80/0x80 [ 23.747703][ T290] ? _raw_spin_unlock_irq+0x4e/0x70 [ 23.752738][ T290] ? ptrace_notify+0x24c/0x350 [ 23.757336][ T290] ? do_notify_parent+0xa10/0xa10 [ 23.762218][ T290] ? debug_smp_processor_id+0x17/0x20 [ 23.767497][ T290] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 23.773484][ T290] do_group_exit+0x141/0x310 [ 23.777911][ T290] __x64_sys_exit_group+0x3f/0x40 [ 23.782768][ T290] do_syscall_64+0x34/0x70 [ 23.787026][ T290] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 23.792752][ T290] RIP: 0033:0x7f7486db3e09 [ 23.796999][ T290] Code: Unable to access opcode bytes at RIP 0x7f7486db3ddf. [ 23.804201][ T290] RSP: 002b:00007ffd4787f0b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.812449][ T290] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f7486db3e09 [ 23.820260][ T290] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 23.828070][ T290] RBP: 00007f7486e30370 R08: ffffffffffffffb8 R09: 0000000000000006 [ 23.835882][ T290] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7486e30370 [ 23.843692][ T290] R13: 0000000000000000 R14: 00007f7486e310e0 R15: 00007f7486d820d0 [ 23.851505][ T290] Modules linked in: [ 23.855517][ T290] ---[ end trace 5178b9708836b8fb ]--- [ 23.860831][ T290] RIP: 0010:may_delete+0x755/0x760 [ 23.865754][ T290] Code: 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c db fd ff ff 4c 89 ef e8 1c 32 f4 ff e9 ce fd ff ff e8 32 98 b6 ff 0f 0b e8 2b 98 b6 ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 [ 23.885325][ T290] RSP: 0018:ffffc90000ae7ad8 EFLAGS: 00010293 [ 23.891219][ T290] RAX: ffffffff81b414b5 RBX: ffff88811cae9690 RCX: ffff88811fe74f00 [ 23.899026][ T290] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 23.906963][ T290] RBP: ffffc90000ae7b58 R08: ffffffff81b40dd3 R09: 0000000000000003 [ 23.914712][ T290] R10: fffff5200015cf40 R11: dffffc0000000001 R12: 0000000000000001 [ 23.922558][ T290] R13: ffff88811cac9dd0 R14: ffff88811cb5ce60 R15: dffffc0000000000 [ 23.930349][ T290] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 23.939122][ T290] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.945523][ T290] CR2: 00007f7486e2e130 CR3: 000000010bb0f000 CR4: 00000000003506a0 [ 23.953355][ T290] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.961154][ T290] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.968976][ T290] Kernel panic - not syncing: Fatal exception [ 23.975034][ T290] Kernel Offset: disabled [ 23.979151][ T290] Rebooting in 86400 seconds..