./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor811692810 <...> [ 13.696935][ T28] audit: type=1400 audit(1721002606.176:63): avc: denied { write } for pid=226 comm="sh" path="pipe:[13033]" dev="pipefs" ino=13033 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 13.700482][ T28] audit: type=1400 audit(1721002606.176:64): 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 [ 13.703507][ T28] audit: type=1400 audit(1721002606.176:65): 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 '10.128.1.120' (ED25519) to the list of known hosts. execve("./syz-executor811692810", ["./syz-executor811692810"], 0x7fff76043ac0 /* 10 vars */) = 0 brk(NULL) = 0x555555ea3000 brk(0x555555ea3d00) = 0x555555ea3d00 arch_prctl(ARCH_SET_FS, 0x555555ea3380) = 0 set_tid_address(0x555555ea3650) = 295 set_robust_list(0x555555ea3660, 24) = 0 rseq(0x555555ea3ca0, 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-executor811692810", 4096) = 27 getrandom("\x1f\x3e\x37\xda\xbb\x75\x07\x4d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555ea3d00 brk(0x555555ec4d00) = 0x555555ec4d00 brk(0x555555ec5000) = 0x555555ec5000 mprotect(0x7f82fd00e000, 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=0x555555ea3650) = 296 ./strace-static-x86_64: Process 296 attached [pid 296] set_robust_list(0x555555ea3660, 24) = 0 [pid 296] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 296] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 296] setsid() = 1 [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 b1 64 ac ff 4c 8d [ 22.839441][ T296] RSP: 0018:ffffc90000ee7a58 EFLAGS: 00010293 [ 22.845339][ T296] RAX: ffffffff81c9210b RBX: ffff88812103c140 RCX: ffff88810955bcc0 [ 22.853243][ T296] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 22.861052][ T296] RBP: ffffc90000ee7ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 22.868970][ T296] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88812108eaa0 [ 22.876761][ T296] R13: 1ffff11024211d54 R14: ffff888100574050 R15: dffffc0000000000 [ 22.884569][ T296] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 22.893335][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.899772][ T296] CR2: 00007ffc34e791b8 CR3: 000000010e75a000 CR4: 00000000003506b0 [ 22.907573][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.915413][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.923206][ T296] Call Trace: [ 22.926436][ T296] [ 22.929214][ T296] ? __die_body+0x62/0xb0 [ 22.933367][ T296] ? die+0x88/0xb0 [ 22.936925][ T296] ? do_trap+0x103/0x330 [ 22.941002][ T296] ? may_delete+0x6eb/0x6f0 [ 22.945348][ T296] ? handle_invalid_op+0x95/0xc0 [ 22.950115][ T296] ? may_delete+0x6eb/0x6f0 [ 22.954540][ T296] ? exc_invalid_op+0x32/0x50 [ 22.959056][ T296] ? asm_exc_invalid_op+0x1b/0x20 [ 22.963914][ T296] ? may_delete+0x7f/0x6f0 [ 22.968166][ T296] ? may_delete+0x6eb/0x6f0 [ 22.972510][ T296] ? may_delete+0x6eb/0x6f0 [ 22.976846][ T296] ? may_delete+0x6eb/0x6f0 [ 22.981188][ T296] vfs_rmdir+0x32/0x500 [ 22.985265][ T296] ? generic_shutdown_super+0x2b8/0x370 [ 22.990649][ T296] incfs_kill_sb+0x113/0x230 [ 22.995075][ T296] deactivate_locked_super+0xad/0x110 [ 23.000281][ T296] deactivate_super+0xbe/0xf0 [ 23.004798][ T296] cleanup_mnt+0x485/0x510 [ 23.009049][ T296] __cleanup_mnt+0x19/0x20 [ 23.013326][ T296] task_work_run+0x24d/0x2e0 [ 23.017745][ T296] ? kmem_cache_free+0x291/0x510 [ 23.022505][ T296] ? task_work_cancel+0x2b0/0x2b0 [ 23.027363][ T296] ? free_nsproxy+0x20d/0x260 [ 23.031872][ T296] ? exit_task_namespaces+0xb4/0xd0 [ 23.037201][ T296] do_exit+0xbd5/0x2b80 [ 23.041194][ T296] ? put_task_struct+0x80/0x80 [ 23.045792][ T296] ? __kasan_check_write+0x14/0x20 [ 23.050738][ T296] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 23.055682][ T296] ? _raw_spin_lock_irqsave+0x210/0x210 [ 23.061061][ T296] ? zap_other_threads+0x29c/0x2d0 [ 23.066098][ T296] do_group_exit+0x21a/0x2d0 [ 23.070611][ T296] __x64_sys_exit_group+0x3f/0x40 [ 23.075554][ T296] do_syscall_64+0x3d/0xb0 [ 23.079816][ T296] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 23.085634][ T296] RIP: 0033:0x7f82fcf97e09 [ 23.089877][ T296] Code: Unable to access opcode bytes at 0x7f82fcf97ddf. [ 23.096864][ T296] RSP: 002b:00007ffc09d37628 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 23.105062][ T296] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f82fcf97e09 [ 23.112877][ T296] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 23.120687][ T296] RBP: 00007f82fd014370 R08: ffffffffffffffb8 R09: 0000000000000006 [ 23.128499][ T296] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f82fd014370 [ 23.136310][ T296] R13: 0000000000000000 R14: 00007f82fd0150e0 R15: 00007f82fcf660d0 [ 23.144396][ T296] [ 23.147255][ T296] Modules linked in: [ 23.151423][ T296] ---[ end trace 0000000000000000 ]--- [ 23.156698][ T296] RIP: 0010:may_delete+0x6eb/0x6f0 [ 23.161739][ T296] 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 [ 23.181332][ T296] RSP: 0018:ffffc90000ee7a58 EFLAGS: 00010293 [ 23.187147][ T296] RAX: ffffffff81c9210b RBX: ffff88812103c140 RCX: ffff88810955bcc0 [ 23.194986][ T296] RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000 [ 23.202876][ T296] RBP: ffffc90000ee7ac0 R08: ffffffff81c91a9f R09: 0000000000000003 [ 23.210686][ T296] R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88812108eaa0 [ 23.218501][ T296] R13: 1ffff11024211d54 R14: ffff888100574050 R15: dffffc0000000000 [ 23.226297][ T296] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.235101][ T296] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.241498][ T296] CR2: 00007ffc34e791b8 CR3: 0000000006e0f000 CR4: 00000000003506b0 [ 23.249484][ T296] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.257393][ T296] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.265206][ T296] Kernel panic - not syncing: Fatal exception [ 23.271377][ T296] Kernel Offset: disabled [ 23.275510][ T296] Rebooting in 86400 seconds..