./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3753590398 <...> context=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 13.506378][ T28] audit: type=1400 audit(1742765018.670:63): avc: denied { write } for pid=225 comm="sh" path="pipe:[14240]" dev="pipefs" ino=14240 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 13.518116][ T28] audit: type=1400 audit(1742765018.670:64): avc: denied { rlimitinh } for pid=225 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 13.536619][ T28] audit: type=1400 audit(1742765018.670:65): avc: denied { siginh } for pid=225 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 17.255916][ T234] sshd (234) used greatest stack depth: 22000 bytes left Warning: Permanently added '10.128.1.114' (ED25519) to the list of known hosts. execve("./syz-executor3753590398", ["./syz-executor3753590398"], 0x7ffd02298670 /* 10 vars */) = 0 brk(NULL) = 0x555570e70000 brk(0x555570e70d00) = 0x555570e70d00 arch_prctl(ARCH_SET_FS, 0x555570e70380) = 0 set_tid_address(0x555570e70650) = 295 set_robust_list(0x555570e70660, 24) = 0 rseq(0x555570e70ca0, 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-executor3753590398", 4096) = 28 getrandom("\x82\xb0\x98\x73\x82\xb8\x12\x0f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555570e70d00 brk(0x555570e91d00) = 0x555570e91d00 brk(0x555570e92000) = 0x555570e92000 mprotect(0x7eff14d61000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555570e70650) = 296 ./strace-static-x86_64: Process 296 attached [pid 296] set_robust_list(0x555570e70660, 24) = 0 [pid 296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 296] getppid() = 0 [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 91 af ab ff 4c 8d [ 23.913259][ T296] RSP: 0018:ffffc90000ee7a38 EFLAGS: 00010293 [ 23.919159][ T296] RAX: ffffffff81c9e6eb RBX: ffff888123ca87a0 RCX: ffff888111406540 [ 23.926972][ T296] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 23.934783][ T296] RBP: ffffc90000ee7aa0 R08: ffffffff81c9e07f R09: 0000000000000003 [ 23.942627][ T296] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888123caadd0 [ 23.950407][ T296] R13: 1ffff110247955ba R14: ffff88810bad8168 R15: dffffc0000000000 [ 23.958216][ T296] FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 23.966985][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.973407][ T296] CR2: 00007eff14d65130 CR3: 000000000700f000 CR4: 00000000003506a0 [ 23.981374][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.989166][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.996984][ T296] Call Trace: [ 24.000104][ T296] [ 24.003151][ T296] ? __die_body+0x62/0xb0 [ 24.007302][ T296] ? die+0x88/0xb0 [ 24.010862][ T296] ? do_trap+0x103/0x330 [ 24.014943][ T296] ? may_delete+0x6eb/0x6f0 [ 24.019281][ T296] ? handle_invalid_op+0x95/0xc0 [ 24.024055][ T296] ? may_delete+0x6eb/0x6f0 [ 24.028405][ T296] ? exc_invalid_op+0x32/0x50 [ 24.032907][ T296] ? asm_exc_invalid_op+0x1b/0x20 [ 24.037765][ T296] ? may_delete+0x7f/0x6f0 [ 24.042017][ T296] ? may_delete+0x6eb/0x6f0 [ 24.046360][ T296] ? may_delete+0x6eb/0x6f0 [ 24.050697][ T296] ? may_delete+0x6eb/0x6f0 [ 24.055038][ T296] vfs_rmdir+0x32/0x500 [ 24.059071][ T296] ? generic_shutdown_super+0x2b8/0x370 [ 24.064424][ T296] incfs_kill_sb+0x113/0x230 [ 24.068844][ T296] deactivate_locked_super+0xad/0x110 [ 24.074049][ T296] deactivate_super+0xbe/0xf0 [ 24.078560][ T296] cleanup_mnt+0x485/0x510 [ 24.082812][ T296] __cleanup_mnt+0x19/0x20 [ 24.087160][ T296] task_work_run+0x24d/0x2e0 [ 24.091574][ T296] ? kmem_cache_free+0x291/0x560 [ 24.096353][ T296] ? task_work_cancel+0x2e0/0x2e0 [ 24.101210][ T296] ? free_nsproxy+0x20d/0x260 [ 24.105723][ T296] ? exit_task_namespaces+0xb4/0xd0 [ 24.110758][ T296] do_exit+0xbd0/0x2b80 [ 24.114751][ T296] ? put_task_struct+0x80/0x80 [ 24.119348][ T296] ? __kasan_check_write+0x14/0x20 [ 24.124303][ T296] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 24.129249][ T296] ? _raw_spin_lock_irqsave+0x210/0x210 [ 24.134626][ T296] ? do_notify_parent+0xa20/0xa20 [ 24.139492][ T296] ? zap_other_threads+0x29c/0x2d0 [ 24.144434][ T296] do_group_exit+0x21a/0x2d0 [ 24.148969][ T296] __x64_sys_exit_group+0x3f/0x40 [ 24.153831][ T296] x64_sys_call+0x610/0x9a0 [ 24.158279][ T296] do_syscall_64+0x3b/0xb0 [ 24.162521][ T296] ? clear_bhb_loop+0x55/0xb0 [ 24.167130][ T296] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 24.172857][ T296] RIP: 0033:0x7eff14ceac09 [ 24.177110][ T296] Code: Unable to access opcode bytes at 0x7eff14ceabdf. [ 24.183966][ T296] RSP: 002b:00007ffd90ac1798 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 24.192215][ T296] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007eff14ceac09 [ 24.200026][ T296] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 24.207845][ T296] RBP: 00007eff14d672b0 R08: ffffffffffffffb8 R09: 0000000000000006 [ 24.215644][ T296] R10: 0000000000000000 R11: 0000000000000246 R12: 00007eff14d672b0 [ 24.223456][ T296] R13: 0000000000000000 R14: 00007eff14d68020 R15: 00007eff14cb9150 [ 24.231271][ T296] [ 24.234139][ T296] Modules linked in: [ 24.238478][ T296] ---[ end trace 0000000000000000 ]--- [ 24.243931][ T296] RIP: 0010:may_delete+0x6eb/0x6f0 [ 24.248897][ T296] Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 7f fe ff ff 4c 89 e7 e8 06 59 f3 ff e9 72 fe ff ff e8 ac af ab ff 0f 0b e8 a5 af ab ff <0f> 0b 0f 1f 00 55 48 89 e5 41 56 53 48 89 fb e8 91 af ab ff 4c 8d [ 24.268388][ T296] RSP: 0018:ffffc90000ee7a38 EFLAGS: 00010293 [ 24.274305][ T296] RAX: ffffffff81c9e6eb RBX: ffff888123ca87a0 RCX: ffff888111406540 [ 24.282125][ T296] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 24.290023][ T296] RBP: ffffc90000ee7aa0 R08: ffffffff81c9e07f R09: 0000000000000003 [ 24.297769][ T296] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888123caadd0 [ 24.305617][ T296] R13: 1ffff110247955ba R14: ffff88810bad8168 R15: dffffc0000000000 [ 24.313400][ T296] FS: 0000000000000000(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 24.322205][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.328778][ T296] CR2: 000055babe1130c8 CR3: 000000000700f000 CR4: 00000000003506b0 [ 24.336640][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.344455][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.352231][ T296] Kernel panic - not syncing: Fatal exception [ 24.358357][ T296] Kernel Offset: disabled [ 24.362488][ T296] Rebooting in 86400 seconds..