./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4179475226 <...> [ 3.481078][ T28] audit: type=1400 audit(1720927837.895:9): avc: denied { append open } for pid=83 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 3.485451][ T28] audit: type=1400 audit(1720927837.895:10): avc: denied { getattr } for pid=83 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 3.748039][ T100] udevd[100]: starting version 3.2.11 [ 3.802106][ T101] udevd[101]: starting eudev-3.2.11 [ 13.666086][ T28] kauditd_printk_skb: 50 callbacks suppressed [ 13.666099][ T28] audit: type=1400 audit(1720927848.095:61): 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 [ 13.671350][ T28] audit: type=1400 audit(1720927848.095:62): 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 [ 13.673938][ T28] audit: type=1400 audit(1720927848.095:63): avc: denied { write } for pid=226 comm="sh" path="pipe:[12629]" dev="pipefs" ino=12629 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 13.677395][ T28] audit: type=1400 audit(1720927848.095:64): 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 [ 13.680059][ T28] audit: type=1400 audit(1720927848.095:65): 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 Warning: Permanently added '10.128.0.203' (ED25519) to the list of known hosts. execve("./syz-executor4179475226", ["./syz-executor4179475226"], 0x7ffcfd9432d0 /* 10 vars */) = 0 brk(NULL) = 0x555555ccd000 brk(0x555555ccdd00) = 0x555555ccdd00 arch_prctl(ARCH_SET_FS, 0x555555ccd380) = 0 set_tid_address(0x555555ccd650) = 297 set_robust_list(0x555555ccd660, 24) = 0 rseq(0x555555ccdca0, 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-executor4179475226", 4096) = 28 getrandom("\x78\x5a\x9f\x74\x01\xf7\xeb\x00", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555ccdd00 brk(0x555555ceed00) = 0x555555ceed00 brk(0x555555cef000) = 0x555555cef000 mprotect(0x7f75317f0000, 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=0x555555ccd650) = 298 ./strace-static-x86_64: Process 298 attached [pid 298] set_robust_list(0x555555ccd660, 24) = 0 [pid 298] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 298] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 298] setsid() = 1 [pid 298] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 298] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 298] unshare(CLONE_NEWNS) = 0 [pid 298] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 298] unshare(CLONE_NEWIPC) = -1 EINVAL (Invalid argument) [pid 298] unshare(CLONE_NEWCGROUP) = 0 [pid 298] unshare(CLONE_NEWUTS) = 0 [pid 298] unshare(CLONE_SYSVSEM) = 0 [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 298] getpid() = 1 [pid 298] 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 [ 25.021060][ T298] RSP: 0018:ffffc90000e27a58 EFLAGS: 00010293 [ 25.026959][ T298] RAX: ffffffff81c9210b RBX: ffff88812096f470 RCX: ffff8881094b2880 [ 25.034776][ T298] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 25.042696][ T298] RBP: ffffc90000e27ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 25.050526][ T298] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88812096f550 [ 25.058435][ T298] R13: 1ffff1102412deaa R14: ffff888100586e10 R15: dffffc0000000000 [ 25.066332][ T298] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 25.075179][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.081600][ T298] CR2: 00007f75317f4130 CR3: 000000010f0b9000 CR4: 00000000003506b0 [ 25.089413][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.097225][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.105036][ T298] Call Trace: [ 25.108157][ T298] [ 25.110937][ T298] ? __die_body+0x62/0xb0 [ 25.115113][ T298] ? die+0x88/0xb0 [ 25.118673][ T298] ? do_trap+0x103/0x330 [ 25.122740][ T298] ? may_delete+0x6eb/0x6f0 [ 25.127092][ T298] ? handle_invalid_op+0x95/0xc0 [ 25.131852][ T298] ? may_delete+0x6eb/0x6f0 [ 25.136192][ T298] ? exc_invalid_op+0x32/0x50 [ 25.140709][ T298] ? asm_exc_invalid_op+0x1b/0x20 [ 25.145565][ T298] ? may_delete+0x7f/0x6f0 [ 25.149817][ T298] ? may_delete+0x6eb/0x6f0 [ 25.154159][ T298] ? may_delete+0x6eb/0x6f0 [ 25.158513][ T298] ? may_delete+0x6eb/0x6f0 [ 25.162932][ T298] vfs_rmdir+0x32/0x500 [ 25.166915][ T298] ? generic_shutdown_super+0x2b8/0x370 [ 25.172317][ T298] incfs_kill_sb+0x113/0x230 [ 25.176735][ T298] deactivate_locked_super+0xad/0x110 [ 25.181932][ T298] deactivate_super+0xbe/0xf0 [ 25.186619][ T298] cleanup_mnt+0x485/0x510 [ 25.190869][ T298] __cleanup_mnt+0x19/0x20 [ 25.195126][ T298] task_work_run+0x24d/0x2e0 [ 25.199546][ T298] ? kmem_cache_free+0x291/0x510 [ 25.204411][ T298] ? task_work_cancel+0x2b0/0x2b0 [ 25.209271][ T298] ? free_nsproxy+0x20d/0x260 [ 25.213784][ T298] ? exit_task_namespaces+0xb4/0xd0 [ 25.218820][ T298] do_exit+0xbd5/0x2b80 [ 25.222813][ T298] ? put_task_struct+0x80/0x80 [ 25.227572][ T298] ? __kasan_check_write+0x14/0x20 [ 25.232515][ T298] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 25.237550][ T298] ? _raw_spin_lock_irqsave+0x210/0x210 [ 25.242934][ T298] ? zap_other_threads+0x29c/0x2d0 [ 25.247881][ T298] do_group_exit+0x21a/0x2d0 [ 25.252309][ T298] __x64_sys_exit_group+0x3f/0x40 [ 25.257165][ T298] do_syscall_64+0x3d/0xb0 [ 25.261513][ T298] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 25.267249][ T298] RIP: 0033:0x7f7531779e09 [ 25.271495][ T298] Code: Unable to access opcode bytes at 0x7f7531779ddf. [ 25.278348][ T298] RSP: 002b:00007ffe051def98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 25.286597][ T298] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f7531779e09 [ 25.294405][ T298] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 25.302218][ T298] RBP: 00007f75317f6370 R08: ffffffffffffffb8 R09: 0000000000000006 [ 25.310028][ T298] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f75317f6370 [ 25.317852][ T298] R13: 0000000000000000 R14: 00007f75317f70e0 R15: 00007f75317480d0 [ 25.325656][ T298] [ 25.328520][ T298] Modules linked in: [ 25.332595][ T298] ---[ end trace 0000000000000000 ]--- [ 25.337856][ T298] RIP: 0010:may_delete+0x6eb/0x6f0 [ 25.342873][ T298] 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 [ 25.362395][ T298] RSP: 0018:ffffc90000e27a58 EFLAGS: 00010293 [ 25.368227][ T298] RAX: ffffffff81c9210b RBX: ffff88812096f470 RCX: ffff8881094b2880 [ 25.376075][ T298] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 25.383872][ T298] RBP: ffffc90000e27ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 25.391688][ T298] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88812096f550 [ 25.399475][ T298] R13: 1ffff1102412deaa R14: ffff888100586e10 R15: dffffc0000000000 [ 25.407323][ T298] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 25.416072][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.422506][ T298] CR2: 00007f75317f4130 CR3: 000000010f0b9000 CR4: 00000000003506b0 [ 25.430290][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.438124][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.445925][ T298] Kernel panic - not syncing: Fatal exception [ 25.452039][ T298] Kernel Offset: disabled [ 25.456160][ T298] Rebooting in 86400 seconds..