./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3999396402 <...> Warning: Permanently added '10.128.0.202' (ED25519) to the list of known hosts. execve("./syz-executor3999396402", ["./syz-executor3999396402"], 0x7fff5c8eb6e0 /* 10 vars */) = 0 brk(NULL) = 0x555569549000 brk(0x555569549d00) = 0x555569549d00 arch_prctl(ARCH_SET_FS, 0x555569549380) = 0 set_tid_address(0x555569549650) = 287 set_robust_list(0x555569549660, 24) = 0 rseq(0x555569549ca0, 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-executor3999396402", 4096) = 28 getrandom("\xea\xe8\xac\x93\x76\x45\xd7\x69", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555569549d00 brk(0x55556956ad00) = 0x55556956ad00 brk(0x55556956b000) = 0x55556956b000 mprotect(0x7f80bce14000, 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=0x555569549650) = 288 ./strace-static-x86_64: Process 288 attached [pid 288] set_robust_list(0x555569549660, 24) = 0 [pid 288] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 288] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 288] setsid() = 1 [pid 288] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 288] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 288] unshare(CLONE_NEWNS) = 0 [pid 288] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 288] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 288] unshare(CLONE_NEWCGROUP) = 0 [pid 288] unshare(CLONE_NEWUTS) = 0 [pid 288] unshare(CLONE_SYSVSEM) = 0 [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 288] getpid() = 1 [pid 288] 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 [ 21.621397][ T288] RSP: 0018:ffffc90000b07ad8 EFLAGS: 00010293 [ 21.627292][ T288] RAX: ffffffff81b414b5 RBX: ffff88811caac030 RCX: ffff8881210213c0 [ 21.635094][ T288] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 21.643123][ T288] RBP: ffffc90000b07b58 R08: ffffffff81b40dd3 R09: 0000000000000003 [ 21.650899][ T288] R10: fffff52000160f40 R11: dffffc0000000001 R12: 0000000000000001 [ 21.658790][ T288] R13: ffff88811caf5220 R14: ffff8881105af1d0 R15: dffffc0000000000 [ 21.666629][ T288] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 21.675364][ T288] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.681877][ T288] CR2: 00007f80bce18130 CR3: 000000000660f000 CR4: 00000000003506a0 [ 21.689863][ T288] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.697667][ T288] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.705476][ T288] Call Trace: [ 21.708788][ T288] ? __die_body+0x62/0xb0 [ 21.712943][ T288] ? die+0x88/0xb0 [ 21.716501][ T288] ? do_trap+0x1a4/0x310 [ 21.720582][ T288] ? may_delete+0x755/0x760 [ 21.724921][ T288] ? handle_invalid_op+0x95/0xc0 [ 21.729698][ T288] ? may_delete+0x755/0x760 [ 21.734042][ T288] ? exc_invalid_op+0x32/0x50 [ 21.738559][ T288] ? asm_exc_invalid_op+0x12/0x20 [ 21.743410][ T288] ? may_delete+0x73/0x760 [ 21.747661][ T288] ? may_delete+0x755/0x760 [ 21.752027][ T288] ? may_delete+0x755/0x760 [ 21.756426][ T288] ? may_delete+0x755/0x760 [ 21.760860][ T288] vfs_rmdir+0x2c/0x3f0 [ 21.764853][ T288] incfs_kill_sb+0x108/0x220 [ 21.769281][ T288] deactivate_locked_super+0xad/0x110 [ 21.774504][ T288] deactivate_super+0xbe/0xf0 [ 21.779005][ T288] cleanup_mnt+0x45c/0x510 [ 21.783266][ T288] __cleanup_mnt+0x19/0x20 [ 21.787507][ T288] task_work_run+0x129/0x190 [ 21.791940][ T288] do_exit+0xc83/0x2a50 [ 21.796023][ T288] ? put_task_struct+0x80/0x80 [ 21.800612][ T288] ? _raw_spin_unlock_irq+0x4e/0x70 [ 21.805646][ T288] ? ptrace_notify+0x24c/0x350 [ 21.810373][ T288] ? do_notify_parent+0xa10/0xa10 [ 21.815220][ T288] ? debug_smp_processor_id+0x17/0x20 [ 21.820425][ T288] ? fpregs_assert_state_consistent+0xb6/0xe0 [ 21.826325][ T288] do_group_exit+0x141/0x310 [ 21.830756][ T288] __x64_sys_exit_group+0x3f/0x40 [ 21.835611][ T288] do_syscall_64+0x34/0x70 [ 21.839865][ T288] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 21.845691][ T288] RIP: 0033:0x7f80bcd9de09 [ 21.849937][ T288] Code: Unable to access opcode bytes at RIP 0x7f80bcd9dddf. [ 21.857132][ T288] RSP: 002b:00007ffe6ff9d7e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 21.865379][ T288] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f80bcd9de09 [ 21.873193][ T288] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 21.880999][ T288] RBP: 00007f80bce1a370 R08: ffffffffffffffb8 R09: 0000000000000006 [ 21.888811][ T288] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f80bce1a370 [ 21.896622][ T288] R13: 0000000000000000 R14: 00007f80bce1b0e0 R15: 00007f80bcd6c0d0 [ 21.904550][ T288] Modules linked in: [ 21.908696][ T288] ---[ end trace 5dc8e16b88491918 ]--- [ 21.913929][ T288] RIP: 0010:may_delete+0x755/0x760 [ 21.919056][ T288] 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 [ 21.938486][ T288] RSP: 0018:ffffc90000b07ad8 EFLAGS: 00010293 [ 21.944363][ T288] RAX: ffffffff81b414b5 RBX: ffff88811caac030 RCX: ffff8881210213c0 [ 21.952202][ T288] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 21.960003][ T288] RBP: ffffc90000b07b58 R08: ffffffff81b40dd3 R09: 0000000000000003 [ 21.967956][ T288] R10: fffff52000160f40 R11: dffffc0000000001 R12: 0000000000000001 [ 21.975728][ T288] R13: ffff88811caf5220 R14: ffff8881105af1d0 R15: dffffc0000000000 [ 21.983669][ T288] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 21.992479][ T288] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.999435][ T288] CR2: 00007f80bce18130 CR3: 000000000660f000 CR4: 00000000003506a0 [ 22.007211][ T288] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.015308][ T288] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.023120][ T288] Kernel panic - not syncing: Fatal exception [ 22.029179][ T288] Kernel Offset: disabled [ 22.033307][ T288] Rebooting in 86400 seconds..