./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1679632704 <...> Warning: Permanently added '10.128.10.21' (ED25519) to the list of known hosts. execve("./syz-executor1679632704", ["./syz-executor1679632704"], 0x7ffe7ae0a160 /* 10 vars */) = 0 brk(NULL) = 0x555555ba8000 brk(0x555555ba8d00) = 0x555555ba8d00 arch_prctl(ARCH_SET_FS, 0x555555ba8380) = 0 set_tid_address(0x555555ba8650) = 296 set_robust_list(0x555555ba8660, 24) = 0 rseq(0x555555ba8ca0, 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-executor1679632704", 4096) = 28 getrandom("\x60\xa9\x92\xa0\xe1\xe0\xe8\x59", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555ba8d00 brk(0x555555bc9d00) = 0x555555bc9d00 brk(0x555555bca000) = 0x555555bca000 mprotect(0x7f0e60b94000, 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 mkdir("./syzkaller.7eoIrZ", 0700) = 0 chmod("./syzkaller.7eoIrZ", 0777) = 0 chdir("./syzkaller.7eoIrZ") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555ba8650) = 297 ./strace-static-x86_64: Process 297 attached [pid 297] set_robust_list(0x555555ba8660, 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 [ 24.878724][ T297] RSP: 0018:ffffc90000f37a58 EFLAGS: 00010293 [ 24.884614][ T297] RAX: ffffffff81c9210b RBX: ffff888120545470 RCX: ffff88810958a880 [ 24.892427][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 24.900263][ T297] RBP: ffffc90000f37ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 24.908051][ T297] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88812057d000 [ 24.915861][ T297] R13: 1ffff110240afa00 R14: ffff88810b983a98 R15: dffffc0000000000 [ 24.923767][ T297] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 24.932525][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.938943][ T297] CR2: 00007f0e60b98130 CR3: 000000010fcd1000 CR4: 00000000003506a0 [ 24.946762][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.954572][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.962414][ T297] Call Trace: [ 24.965509][ T297] [ 24.968293][ T297] ? __die_body+0x62/0xb0 [ 24.972449][ T297] ? die+0x88/0xb0 [ 24.976007][ T297] ? do_trap+0x103/0x330 [ 24.980094][ T297] ? may_delete+0x6eb/0x6f0 [ 24.984429][ T297] ? handle_invalid_op+0x95/0xc0 [ 24.989208][ T297] ? may_delete+0x6eb/0x6f0 [ 24.993540][ T297] ? exc_invalid_op+0x32/0x50 [ 24.998312][ T297] ? asm_exc_invalid_op+0x1b/0x20 [ 25.003175][ T297] ? may_delete+0x7f/0x6f0 [ 25.007428][ T297] ? may_delete+0x6eb/0x6f0 [ 25.011772][ T297] ? may_delete+0x6eb/0x6f0 [ 25.016110][ T297] ? may_delete+0x6eb/0x6f0 [ 25.020484][ T297] vfs_rmdir+0x32/0x500 [ 25.024442][ T297] ? generic_shutdown_super+0x2b8/0x370 [ 25.029819][ T297] incfs_kill_sb+0x113/0x230 [ 25.034246][ T297] deactivate_locked_super+0xad/0x110 [ 25.039455][ T297] deactivate_super+0xbe/0xf0 [ 25.043974][ T297] cleanup_mnt+0x485/0x510 [ 25.048329][ T297] __cleanup_mnt+0x19/0x20 [ 25.052564][ T297] task_work_run+0x24d/0x2e0 [ 25.056985][ T297] ? kmem_cache_free+0x291/0x510 [ 25.061761][ T297] ? task_work_cancel+0x2b0/0x2b0 [ 25.066623][ T297] ? free_nsproxy+0x20d/0x260 [ 25.071135][ T297] ? exit_task_namespaces+0xb4/0xd0 [ 25.076262][ T297] do_exit+0xbd5/0x2b80 [ 25.080255][ T297] ? put_task_struct+0x80/0x80 [ 25.084851][ T297] ? __kasan_check_write+0x14/0x20 [ 25.089794][ T297] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 25.111671][ T297] ? _raw_spin_lock_irqsave+0x210/0x210 [ 25.117049][ T297] ? zap_other_threads+0x29c/0x2d0 [ 25.121996][ T297] do_group_exit+0x21a/0x2d0 [ 25.126423][ T297] __x64_sys_exit_group+0x3f/0x40 [ 25.131299][ T297] do_syscall_64+0x3d/0xb0 [ 25.135534][ T297] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 25.141264][ T297] RIP: 0033:0x7f0e60b1de49 [ 25.145536][ T297] Code: Unable to access opcode bytes at 0x7f0e60b1de1f. [ 25.152381][ T297] RSP: 002b:00007ffcecd7e888 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 25.160817][ T297] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f0e60b1de49 [ 25.168862][ T297] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 25.176762][ T297] RBP: 00007f0e60b9a370 R08: ffffffffffffffb8 R09: 0000000000000140 [ 25.184573][ T297] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0e60b9a370 [ 25.192383][ T297] R13: 0000000000000000 R14: 00007f0e60b9b0e0 R15: 00007f0e60aec110 [ 25.200205][ T297] [ 25.203067][ T297] Modules linked in: [ 25.207075][ T297] ---[ end trace 0000000000000000 ]--- [ 25.212683][ T297] RIP: 0010:may_delete+0x6eb/0x6f0 [ 25.217773][ 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 [ 25.237513][ T297] RSP: 0018:ffffc90000f37a58 EFLAGS: 00010293 [ 25.243343][ T297] RAX: ffffffff81c9210b RBX: ffff888120545470 RCX: ffff88810958a880 [ 25.251185][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 25.259121][ T297] RBP: ffffc90000f37ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 25.266958][ T297] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88812057d000 [ 25.274732][ T297] R13: 1ffff110240afa00 R14: ffff88810b983a98 R15: dffffc0000000000 [ 25.282572][ T297] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 25.291405][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.297792][ T297] CR2: 00007f0e60b98130 CR3: 000000010e758000 CR4: 00000000003506a0 [ 25.305647][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.313475][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.321290][ T297] Kernel panic - not syncing: Fatal exception [ 25.327413][ T297] Kernel Offset: disabled [ 25.331547][ T297] Rebooting in 86400 seconds..