./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor345373681 <...> [ 3.633487][ T99] udevd[99]: starting version 3.2.11 [ 3.670595][ T100] udevd[100]: starting eudev-3.2.11 [ 7.342733][ T113] udevd (113) used greatest stack depth: 22576 bytes left [ 14.304356][ T30] kauditd_printk_skb: 50 callbacks suppressed [ 14.304370][ T30] audit: type=1400 audit(1712185419.711:61): avc: denied { transition } for pid=226 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.310627][ T30] audit: type=1400 audit(1712185419.711:62): avc: denied { noatsecure } for pid=226 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.313899][ T30] audit: type=1400 audit(1712185419.711:63): avc: denied { write } for pid=226 comm="sh" path="pipe:[12428]" dev="pipefs" ino=12428 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 14.318239][ T30] audit: type=1400 audit(1712185419.711:64): avc: denied { rlimitinh } for pid=226 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.321538][ T30] audit: type=1400 audit(1712185419.711:65): avc: denied { siginh } for pid=226 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 15.574456][ T227] sshd (227) used greatest stack depth: 22288 bytes left Warning: Permanently added '10.128.0.128' (ED25519) to the list of known hosts. execve("./syz-executor345373681", ["./syz-executor345373681"], 0x7ffcfa8bbb90 /* 10 vars */) = 0 brk(NULL) = 0x555556130000 brk(0x555556130d00) = 0x555556130d00 arch_prctl(ARCH_SET_FS, 0x555556130380) = 0 set_tid_address(0x555556130650) = 294 set_robust_list(0x555556130660, 24) = 0 rseq(0x555556130ca0, 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-executor345373681", 4096) = 27 getrandom("\x5d\xe9\x09\xf1\xb9\xe5\xf7\xf3", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556130d00 brk(0x555556151d00) = 0x555556151d00 brk(0x555556152000) = 0x555556152000 mprotect(0x7f66e84b5000, 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=0x555556130650) = 295 ./strace-static-x86_64: Process 295 attached [pid 295] set_robust_list(0x555556130660, 24) = 0 [pid 295] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 295] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 295] setsid() = 1 [pid 295] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 295] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 295] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 295] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 295] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 295] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 295] unshare(CLONE_NEWNS) = 0 [pid 295] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 295] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 295] unshare(CLONE_NEWCGROUP) = 0 [pid 295] unshare(CLONE_NEWUTS) = 0 [pid 295] unshare(CLONE_SYSVSEM) = 0 [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 295] getpid() = 1 [pid 295] 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 41 67 b2 ff 4c 8d [ 23.172971][ T295] RSP: 0018:ffffc90000987b10 EFLAGS: 00010293 [ 23.178879][ T295] RAX: ffffffff81bdba2b RBX: ffff88811b97c7a0 RCX: ffff88811e23a780 [ 23.186691][ T295] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 23.194514][ T295] RBP: ffffc90000987b78 R08: ffffffff81bdb3bf R09: 0000000000000003 [ 23.202303][ T295] R10: fffff52000130f44 R11: dffffc0000000001 R12: ffff88811b97cdd0 [ 23.210117][ T295] R13: 1ffff1102372f9ba R14: ffff88810fe2c1a0 R15: dffffc0000000000 [ 23.217928][ T295] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 23.226698][ T295] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.233118][ T295] CR2: 00007f66e84b9130 CR3: 000000010c44e000 CR4: 00000000003506a0 [ 23.240939][ T295] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.248747][ T295] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.256819][ T295] Call Trace: [ 23.259947][ T295] [ 23.262716][ T295] ? __die_body+0x62/0xb0 [ 23.266879][ T295] ? die+0x88/0xb0 [ 23.270438][ T295] ? do_trap+0x103/0x330 [ 23.274517][ T295] ? may_delete+0x6eb/0x6f0 [ 23.278950][ T295] ? handle_invalid_op+0x95/0xc0 [ 23.283742][ T295] ? may_delete+0x6eb/0x6f0 [ 23.288066][ T295] ? exc_invalid_op+0x32/0x50 [ 23.292577][ T295] ? asm_exc_invalid_op+0x1b/0x20 [ 23.297438][ T295] ? may_delete+0x7f/0x6f0 [ 23.301688][ T295] ? may_delete+0x6eb/0x6f0 [ 23.306028][ T295] ? may_delete+0x6eb/0x6f0 [ 23.310370][ T295] vfs_rmdir+0x32/0x470 [ 23.314362][ T295] incfs_kill_sb+0x113/0x230 [ 23.318791][ T295] deactivate_locked_super+0xad/0x110 [ 23.323996][ T295] deactivate_super+0xbe/0xf0 [ 23.328510][ T295] cleanup_mnt+0x45c/0x510 [ 23.332761][ T295] __cleanup_mnt+0x19/0x20 [ 23.337016][ T295] task_work_run+0x129/0x190 [ 23.341470][ T295] do_exit+0xc48/0x2ca0 [ 23.345435][ T295] ? put_task_struct+0x80/0x80 [ 23.350046][ T295] ? ptrace_notify+0x24c/0x350 [ 23.354632][ T295] ? do_notify_parent+0xa30/0xa30 [ 23.359494][ T295] do_group_exit+0x141/0x310 [ 23.363919][ T295] __x64_sys_exit_group+0x3f/0x40 [ 23.368780][ T295] do_syscall_64+0x3d/0xb0 [ 23.373031][ T295] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 23.378760][ T295] RIP: 0033:0x7f66e843eac9 [ 23.383014][ T295] Code: Unable to access opcode bytes at RIP 0x7f66e843ea9f. [ 23.390216][ T295] RSP: 002b:00007ffc92f439b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.398462][ T295] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f66e843eac9 [ 23.406274][ T295] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 23.414084][ T295] RBP: 00007f66e84bb370 R08: ffffffffffffffb8 R09: 00007ffc92f43a90 [ 23.421895][ T295] R10: 0000000000000e01 R11: 0000000000000246 R12: 00007f66e84bb370 [ 23.429707][ T295] R13: 0000000000000000 R14: 00007f66e84bc0e0 R15: 00007f66e840cd80 [ 23.437523][ T295] [ 23.440381][ T295] Modules linked in: [ 23.445705][ T295] ---[ end trace 7182e86c755b0f0b ]--- [ 23.452464][ T295] RIP: 0010:may_delete+0x6eb/0x6f0 [ 23.458252][ T295] Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 7f fe ff ff 4c 89 e7 e8 e6 77 f4 ff e9 72 fe ff ff e8 5c 67 b2 ff 0f 0b e8 55 67 b2 ff <0f> 0b 0f 1f 00 55 48 89 e5 41 56 53 48 89 fb e8 41 67 b2 ff 4c 8d [ 23.478891][ T295] RSP: 0018:ffffc90000987b10 EFLAGS: 00010293 [ 23.484784][ T295] RAX: ffffffff81bdba2b RBX: ffff88811b97c7a0 RCX: ffff88811e23a780 [ 23.492638][ T295] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 23.500651][ T295] RBP: ffffc90000987b78 R08: ffffffff81bdb3bf R09: 0000000000000003 [ 23.508444][ T295] R10: fffff52000130f44 R11: dffffc0000000001 R12: ffff88811b97cdd0 [ 23.516205][ T295] R13: 1ffff1102372f9ba R14: ffff88810fe2c1a0 R15: dffffc0000000000 [ 23.524089][ T295] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.533581][ T295] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.540024][ T295] CR2: 00005576b3af6228 CR3: 000000011dfce000 CR4: 00000000003506b0 [ 23.547791][ T295] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.555680][ T295] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.563494][ T295] Kernel panic - not syncing: Fatal exception [ 23.569665][ T295] Kernel Offset: disabled [ 23.573915][ T295] Rebooting in 86400 seconds..