./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2934572989 <...> Warning: Permanently added '10.128.1.113' (ED25519) to the list of known hosts. execve("./syz-executor2934572989", ["./syz-executor2934572989"], 0x7ffc166e4930 /* 10 vars */) = 0 brk(NULL) = 0x5555560b7000 brk(0x5555560b7d00) = 0x5555560b7d00 arch_prctl(ARCH_SET_FS, 0x5555560b7380) = 0 set_tid_address(0x5555560b7650) = 296 set_robust_list(0x5555560b7660, 24) = 0 rseq(0x5555560b7ca0, 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-executor2934572989", 4096) = 28 getrandom("\xe3\x57\x52\x22\x3f\x86\x96\xa4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555560b7d00 brk(0x5555560d8d00) = 0x5555560d8d00 brk(0x5555560d9000) = 0x5555560d9000 mprotect(0x7f2d0dffd000, 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=0x5555560b7650) = 297 ./strace-static-x86_64: Process 297 attached [pid 297] set_robust_list(0x5555560b7660, 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 [ 24.887067][ T297] RSP: 0018:ffffc90000cb7a58 EFLAGS: 00010293 [ 24.892968][ T297] RAX: ffffffff81c9210b RBX: ffff88812015b250 RCX: ffff8881095be540 [ 24.900864][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 24.908675][ T297] RBP: ffffc90000cb7ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 24.916490][ T297] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888120184990 [ 24.924299][ T297] R13: 1ffff11024030932 R14: ffff88810b998720 R15: dffffc0000000000 [ 24.932109][ T297] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 24.940874][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.947297][ T297] CR2: 00007fff340b9ea8 CR3: 0000000121a5d000 CR4: 00000000003506b0 [ 24.955199][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.963008][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.970817][ T297] Call Trace: [ 24.973943][ T297] [ 24.976723][ T297] ? __die_body+0x62/0xb0 [ 24.980887][ T297] ? die+0x88/0xb0 [ 24.984446][ T297] ? do_trap+0x103/0x330 [ 24.988523][ T297] ? may_delete+0x6eb/0x6f0 [ 24.992864][ T297] ? handle_invalid_op+0x95/0xc0 [ 24.997639][ T297] ? may_delete+0x6eb/0x6f0 [ 25.001979][ T297] ? exc_invalid_op+0x32/0x50 [ 25.006490][ T297] ? asm_exc_invalid_op+0x1b/0x20 [ 25.011351][ T297] ? may_delete+0x7f/0x6f0 [ 25.015603][ T297] ? may_delete+0x6eb/0x6f0 [ 25.019943][ T297] ? may_delete+0x6eb/0x6f0 [ 25.024281][ T297] ? may_delete+0x6eb/0x6f0 [ 25.028623][ T297] vfs_rmdir+0x32/0x500 [ 25.032613][ T297] ? generic_shutdown_super+0x2b8/0x370 [ 25.038019][ T297] incfs_kill_sb+0x113/0x230 [ 25.042425][ T297] deactivate_locked_super+0xad/0x110 [ 25.047629][ T297] deactivate_super+0xbe/0xf0 [ 25.052142][ T297] cleanup_mnt+0x485/0x510 [ 25.056397][ T297] __cleanup_mnt+0x19/0x20 [ 25.060647][ T297] task_work_run+0x24d/0x2e0 [ 25.065074][ T297] ? kmem_cache_free+0x291/0x510 [ 25.069847][ T297] ? task_work_cancel+0x2b0/0x2b0 [ 25.074708][ T297] ? free_nsproxy+0x20d/0x260 [ 25.079223][ T297] ? exit_task_namespaces+0xb4/0xd0 [ 25.084385][ T297] do_exit+0xbd5/0x2b80 [ 25.088361][ T297] ? put_task_struct+0x80/0x80 [ 25.092956][ T297] ? __kasan_check_write+0x14/0x20 [ 25.097905][ T297] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 25.102854][ T297] ? _raw_spin_lock_irqsave+0x210/0x210 [ 25.108271][ T297] ? zap_other_threads+0x29c/0x2d0 [ 25.113180][ T297] do_group_exit+0x21a/0x2d0 [ 25.117606][ T297] __x64_sys_exit_group+0x3f/0x40 [ 25.122465][ T297] do_syscall_64+0x3d/0xb0 [ 25.126731][ T297] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 25.132448][ T297] RIP: 0033:0x7f2d0df86e09 [ 25.136698][ T297] Code: Unable to access opcode bytes at 0x7f2d0df86ddf. [ 25.143556][ T297] RSP: 002b:00007ffceaff8e98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 25.151804][ T297] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f2d0df86e09 [ 25.159611][ T297] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 25.167424][ T297] RBP: 00007f2d0e003370 R08: ffffffffffffffb8 R09: 0000000000000006 [ 25.175234][ T297] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f2d0e003370 [ 25.183046][ T297] R13: 0000000000000000 R14: 00007f2d0e0040e0 R15: 00007f2d0df550d0 [ 25.190863][ T297] [ 25.193733][ T297] Modules linked in: [ 25.197689][ T297] ---[ end trace 0000000000000000 ]--- [ 25.203000][ T297] RIP: 0010:may_delete+0x6eb/0x6f0 [ 25.207912][ 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 [ 25.227418][ T297] RSP: 0018:ffffc90000cb7a58 EFLAGS: 00010293 [ 25.233341][ T297] RAX: ffffffff81c9210b RBX: ffff88812015b250 RCX: ffff8881095be540 [ 25.241126][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 25.248891][ T297] RBP: ffffc90000cb7ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 25.256694][ T297] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888120184990 [ 25.264518][ T297] R13: 1ffff11024030932 R14: ffff88810b998720 R15: dffffc0000000000 [ 25.272448][ T297] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 25.281313][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.287706][ T297] CR2: 00007fff340b9ea8 CR3: 0000000121a5d000 CR4: 00000000003506b0 [ 25.295647][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.303429][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.311261][ T297] Kernel panic - not syncing: Fatal exception [ 25.317548][ T297] Kernel Offset: disabled [ 25.321695][ T297] Rebooting in 86400 seconds..