./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2071604298 <...> Warning: Permanently added '10.128.0.72' (ED25519) to the list of known hosts. execve("./syz-executor2071604298", ["./syz-executor2071604298"], 0x7ffe7c3440d0 /* 10 vars */) = 0 brk(NULL) = 0x555556f11000 brk(0x555556f11d00) = 0x555556f11d00 arch_prctl(ARCH_SET_FS, 0x555556f11380) = 0 set_tid_address(0x555556f11650) = 295 set_robust_list(0x555556f11660, 24) = 0 rseq(0x555556f11ca0, 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-executor2071604298", 4096) = 28 getrandom("\xa1\x74\x3f\x87\xca\xa9\x5f\xf4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556f11d00 brk(0x555556f32d00) = 0x555556f32d00 brk(0x555556f33000) = 0x555556f33000 mprotect(0x7f756a8e7000, 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=0x555556f11650) = 296 ./strace-static-x86_64: Process 296 attached [pid 296] set_robust_list(0x555556f11660, 24) = 0 [pid 296] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 296] setsid() = 1 [pid 296] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 296] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 296] unshare(CLONE_NEWNS) = 0 [pid 296] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 296] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 296] unshare(CLONE_NEWCGROUP) = 0 [pid 296] unshare(CLONE_NEWUTS) = 0 [pid 296] unshare(CLONE_SYSVSEM) = 0 [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 296] getpid() = 1 [pid 296] 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 [ 23.709594][ T296] RSP: 0018:ffffc90000dd7a58 EFLAGS: 00010293 [ 23.715491][ T296] RAX: ffffffff81c9210b RBX: ffff88811f94c9c0 RCX: ffff88811cf73cc0 [ 23.723304][ T296] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 23.731114][ T296] RBP: ffffc90000dd7ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 23.739014][ T296] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88811f94c770 [ 23.746912][ T296] R13: 1ffff11023f298ee R14: ffff88810b85d730 R15: dffffc0000000000 [ 23.754721][ T296] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.763494][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.769914][ T296] CR2: 00007f756a8eb130 CR3: 000000010f34d000 CR4: 00000000003506b0 [ 23.777724][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.785536][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.793346][ T296] Call Trace: [ 23.796475][ T296] [ 23.799263][ T296] ? __die_body+0x62/0xb0 [ 23.803507][ T296] ? die+0x88/0xb0 [ 23.807059][ T296] ? do_trap+0x103/0x330 [ 23.811140][ T296] ? may_delete+0x6eb/0x6f0 [ 23.815564][ T296] ? handle_invalid_op+0x95/0xc0 [ 23.820337][ T296] ? may_delete+0x6eb/0x6f0 [ 23.824677][ T296] ? exc_invalid_op+0x32/0x50 [ 23.829191][ T296] ? asm_exc_invalid_op+0x1b/0x20 [ 23.834056][ T296] ? may_delete+0x7f/0x6f0 [ 23.838324][ T296] ? may_delete+0x6eb/0x6f0 [ 23.842644][ T296] ? may_delete+0x6eb/0x6f0 [ 23.846984][ T296] ? may_delete+0x6eb/0x6f0 [ 23.851325][ T296] vfs_rmdir+0x32/0x500 [ 23.855403][ T296] ? generic_shutdown_super+0x2b8/0x370 [ 23.860785][ T296] incfs_kill_sb+0x113/0x230 [ 23.865212][ T296] deactivate_locked_super+0xad/0x110 [ 23.870418][ T296] deactivate_super+0xbe/0xf0 [ 23.874947][ T296] cleanup_mnt+0x485/0x510 [ 23.879272][ T296] __cleanup_mnt+0x19/0x20 [ 23.883524][ T296] task_work_run+0x24d/0x2e0 [ 23.887950][ T296] ? kmem_cache_free+0x291/0x510 [ 23.892726][ T296] ? task_work_cancel+0x2b0/0x2b0 [ 23.897582][ T296] ? free_nsproxy+0x20d/0x260 [ 23.902184][ T296] ? exit_task_namespaces+0xb4/0xd0 [ 23.907327][ T296] do_exit+0xbd5/0x2b80 [ 23.911318][ T296] ? put_task_struct+0x80/0x80 [ 23.916003][ T296] ? __kasan_check_write+0x14/0x20 [ 23.920955][ T296] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 23.925896][ T296] ? _raw_spin_lock_irqsave+0x210/0x210 [ 23.931279][ T296] ? zap_other_threads+0x29c/0x2d0 [ 23.936270][ T296] do_group_exit+0x21a/0x2d0 [ 23.940677][ T296] __x64_sys_exit_group+0x3f/0x40 [ 23.945515][ T296] do_syscall_64+0x3d/0xb0 [ 23.949759][ T296] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 23.955490][ T296] RIP: 0033:0x7f756a870e09 [ 23.959741][ T296] Code: Unable to access opcode bytes at 0x7f756a870ddf. [ 23.966598][ T296] RSP: 002b:00007ffd5f090578 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.974844][ T296] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f756a870e09 [ 23.982656][ T296] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 23.990466][ T296] RBP: 00007f756a8ed370 R08: ffffffffffffffb8 R09: 0000000000000006 [ 23.998277][ T296] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f756a8ed370 [ 24.006088][ T296] R13: 0000000000000000 R14: 00007f756a8ee0e0 R15: 00007f756a83f0d0 [ 24.013906][ T296] [ 24.016774][ T296] Modules linked in: [ 24.020639][ T296] ---[ end trace 0000000000000000 ]--- [ 24.025961][ T296] RIP: 0010:may_delete+0x6eb/0x6f0 [ 24.030867][ T296] 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 [ 24.050361][ T296] RSP: 0018:ffffc90000dd7a58 EFLAGS: 00010293 [ 24.056238][ T296] RAX: ffffffff81c9210b RBX: ffff88811f94c9c0 RCX: ffff88811cf73cc0 [ 24.064251][ T296] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 24.072043][ T296] RBP: ffffc90000dd7ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 24.079974][ T296] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88811f94c770 [ 24.087775][ T296] R13: 1ffff11023f298ee R14: ffff88810b85d730 R15: dffffc0000000000 [ 24.095584][ T296] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 24.104645][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.111146][ T296] CR2: 00007f756a8eb130 CR3: 000000010f34d000 CR4: 00000000003506b0 [ 24.118996][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.126798][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.135171][ T296] Kernel panic - not syncing: Fatal exception [ 24.141780][ T296] Kernel Offset: disabled [ 24.145912][ T296] Rebooting in 86400 seconds..