./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1297060900 <...> Warning: Permanently added '10.128.0.100' (ED25519) to the list of known hosts. execve("./syz-executor1297060900", ["./syz-executor1297060900"], 0x7ffeaf266be0 /* 10 vars */) = 0 brk(NULL) = 0x555556e24000 brk(0x555556e24d00) = 0x555556e24d00 arch_prctl(ARCH_SET_FS, 0x555556e24380) = 0 set_tid_address(0x555556e24650) = 296 set_robust_list(0x555556e24660, 24) = 0 rseq(0x555556e24ca0, 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-executor1297060900", 4096) = 28 getrandom("\xef\x8b\x32\xed\xca\x66\xaf\x5a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556e24d00 brk(0x555556e45d00) = 0x555556e45d00 brk(0x555556e46000) = 0x555556e46000 mprotect(0x7f30fa0da000, 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=0x555556e24650) = 297 ./strace-static-x86_64: Process 297 attached [pid 297] set_robust_list(0x555556e24660, 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 [ 23.006558][ T297] RSP: 0018:ffffc90000e17a58 EFLAGS: 00010293 [ 23.012458][ T297] RAX: ffffffff81c9210b RBX: ffff88811f50fe00 RCX: ffff888108cc6540 [ 23.020393][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 23.028199][ T297] RBP: ffffc90000e17ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 23.036011][ T297] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88811f50f440 [ 23.043834][ T297] R13: 1ffff11023ea1e88 R14: ffff88810bc134e0 R15: dffffc0000000000 [ 23.051631][ T297] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 23.060398][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.066819][ T297] CR2: 00007f30fa0de130 CR3: 000000010f9fc000 CR4: 00000000003506a0 [ 23.074632][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.082441][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.090709][ T297] Call Trace: [ 23.093840][ T297] [ 23.096613][ T297] ? __die_body+0x62/0xb0 [ 23.100779][ T297] ? die+0x88/0xb0 [ 23.104336][ T297] ? do_trap+0x103/0x330 [ 23.108416][ T297] ? notify_die+0x1b0/0x280 [ 23.112758][ T297] ? may_delete+0x6eb/0x6f0 [ 23.117094][ T297] ? handle_invalid_op+0x95/0xc0 [ 23.121867][ T297] ? may_delete+0x6eb/0x6f0 [ 23.126204][ T297] ? exc_invalid_op+0x32/0x50 [ 23.130720][ T297] ? asm_exc_invalid_op+0x1b/0x20 [ 23.135581][ T297] ? may_delete+0x7f/0x6f0 [ 23.139831][ T297] ? may_delete+0x6eb/0x6f0 [ 23.144291][ T297] ? may_delete+0x6eb/0x6f0 [ 23.148627][ T297] ? may_delete+0x6eb/0x6f0 [ 23.152968][ T297] vfs_rmdir+0x32/0x500 [ 23.156957][ T297] ? generic_shutdown_super+0x2b8/0x370 [ 23.162351][ T297] incfs_kill_sb+0x113/0x230 [ 23.166764][ T297] deactivate_locked_super+0xad/0x110 [ 23.171972][ T297] deactivate_super+0xbe/0xf0 [ 23.176485][ T297] cleanup_mnt+0x485/0x510 [ 23.180736][ T297] __cleanup_mnt+0x19/0x20 [ 23.184988][ T297] task_work_run+0x24d/0x2e0 [ 23.189415][ T297] ? kmem_cache_free+0x291/0x510 [ 23.194190][ T297] ? task_work_cancel+0x2b0/0x2b0 [ 23.199058][ T297] ? free_nsproxy+0x20d/0x260 [ 23.203562][ T297] ? exit_task_namespaces+0xb4/0xd0 [ 23.208597][ T297] do_exit+0xbd5/0x2b80 [ 23.212597][ T297] ? put_task_struct+0x80/0x80 [ 23.217192][ T297] ? __kasan_check_write+0x14/0x20 [ 23.222145][ T297] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 23.227085][ T297] ? _raw_spin_lock_irqsave+0x210/0x210 [ 23.232464][ T297] ? zap_other_threads+0x29c/0x2d0 [ 23.237410][ T297] do_group_exit+0x21a/0x2d0 [ 23.241836][ T297] __x64_sys_exit_group+0x3f/0x40 [ 23.246697][ T297] do_syscall_64+0x3d/0xb0 [ 23.250948][ T297] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 23.256677][ T297] RIP: 0033:0x7f30fa063e09 [ 23.260931][ T297] Code: Unable to access opcode bytes at 0x7f30fa063ddf. [ 23.267792][ T297] RSP: 002b:00007fff3d1e76d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.276032][ T297] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f30fa063e09 [ 23.283845][ T297] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 23.291657][ T297] RBP: 00007f30fa0e0370 R08: ffffffffffffffb8 R09: 0000000000000006 [ 23.299472][ T297] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f30fa0e0370 [ 23.307278][ T297] R13: 0000000000000000 R14: 00007f30fa0e10e0 R15: 00007f30fa0320d0 [ 23.315095][ T297] [ 23.317963][ T297] Modules linked in: [ 23.322191][ T297] ---[ end trace 0000000000000000 ]--- [ 23.327634][ T297] RIP: 0010:may_delete+0x6eb/0x6f0 [ 23.332558][ 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 [ 23.352070][ T297] RSP: 0018:ffffc90000e17a58 EFLAGS: 00010293 [ 23.357922][ T297] RAX: ffffffff81c9210b RBX: ffff88811f50fe00 RCX: ffff888108cc6540 [ 23.365713][ T297] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 23.373564][ T297] RBP: ffffc90000e17ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 23.381375][ T297] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88811f50f440 [ 23.389509][ T297] R13: 1ffff11023ea1e88 R14: ffff88810bc134e0 R15: dffffc0000000000 [ 23.397287][ T297] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 23.406040][ T297] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.412508][ T297] CR2: 00007f30fa0de130 CR3: 000000010e7ee000 CR4: 00000000003506a0 [ 23.420296][ T297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.428107][ T297] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.435895][ T297] Kernel panic - not syncing: Fatal exception [ 23.442010][ T297] Kernel Offset: disabled [ 23.446127][ T297] Rebooting in 86400 seconds..