./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2135251788
<...>
[ 7.418705][ T22] audit: type=1400 audit(1678324952.410:68): avc: denied { open } for pid=234 comm="getty" path="/run/utmp" dev="tmpfs" ino=9414 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1
[ 7.426260][ T22] audit: type=1400 audit(1678324952.410:69): avc: denied { lock } for pid=234 comm="getty" path="/run/utmp" dev="tmpfs" ino=9414 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1
[ 7.433522][ T22] audit: type=1400 audit(1678324952.410:70): avc: denied { read } for pid=234 comm="getty" name="log" dev="sda1" ino=1125 scontext=system_u:system_r:getty_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1
syzkaller
syzkaller login: [ 12.850289][ T22] audit: type=1400 audit(1678324957.850:71): avc: denied { transition } for pid=264 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 12.864960][ T22] audit: type=1400 audit(1678324957.860:72): avc: denied { write } for pid=264 comm="sh" path="pipe:[9847]" dev="pipefs" ino=9847 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1
[ 14.163340][ T265] sshd (265) used greatest stack depth: 21656 bytes left
Warning: Permanently added '10.128.1.21' (ECDSA) to the list of known hosts.
execve("./syz-executor2135251788", ["./syz-executor2135251788"], 0x7ffc6f14e1f0 /* 10 vars */) = 0
brk(NULL) = 0x5555555ad000
brk(0x5555555adc40) = 0x5555555adc40
arch_prctl(ARCH_SET_FS, 0x5555555ad300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor2135251788", 4096) = 28
brk(0x5555555cec40) = 0x5555555cec40
brk(0x5555555cf000) = 0x5555555cf000
mprotect(0x7f90d9a9e000, 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
bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x200019c0, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS}, 72) = 3
[ 20.653676][ T22] audit: type=1400 audit(1678324965.650:73): avc: denied { execmem } for pid=304 comm="syz-executor213" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
[ 20.673422][ T22] audit: type=1400 audit(1678324965.670:74): avc: denied { prog_load } for pid=304 comm="syz-executor213" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1
[ 20.673900][ T304] kasan: CONFIG_KASAN_INLINE enabled
[ 20.693213][ T22] audit: type=1400 audit(1678324965.670:75): avc: denied { prog_run } for pid=304 comm="syz-executor213" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1
[ 20.697935][ T304] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 20.725585][ T304] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[ 20.732523][ T304] CPU: 1 PID: 304 Comm: syz-executor213 Not tainted 5.4.225-syzkaller-00007-g250ac66f1853 #0
[ 20.743084][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
[ 20.753153][ T304] RIP: 0010:bpf_skb_ancestor_cgroup_id+0x114/0x270
[ 20.759788][ T304] Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 8d 64 1d fe 48 8b 1b 48 8d bb 1c 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 2f 01 00 00 8b ab 1c 01 00 00 89 ef 44
[ 20.780072][ T304] RSP: 0018:ffff8881dcf874b8 EFLAGS: 00010203
[ 20.786134][ T304] RAX: 0000000000000023 RBX: 0000000000000000 RCX: 0000000000000000
[ 20.794623][ T304] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000000011c
[ 20.802576][ T304] RBP: 0000000000000080 R08: ffffffff8373538a R09: ffff8881dcf87760
[ 20.810646][ T304] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
[ 20.818600][ T304] R13: fffffffb3158442b R14: 0000000000000000 R15: ffff8881e119d812
[ 20.826834][ T304] FS: 00005555555ad300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[ 20.835785][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 20.842443][ T304] CR2: 00007f0567fa9a70 CR3: 00000001dcec0000 CR4: 00000000003406e0
[ 20.850505][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 20.858467][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 20.866427][ T304] Call Trace:
[ 20.869711][ T304] ? __kasan_kmalloc+0x130/0x1d0
[ 20.874627][ T304] ? kmem_cache_alloc+0xd0/0x220
[ 20.879554][ T304] ? build_skb+0x26/0x440
[ 20.883873][ T304] ? bpf_prog_test_run_skb+0x302/0xf00
[ 20.889399][ T304] ? __se_sys_bpf+0x2b6f/0xb870
[ 20.894228][ T304] ? do_syscall_64+0xca/0x1c0
[ 20.898887][ T304] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1
[ 20.904941][ T304] ? ktime_get+0xf9/0x130
[ 20.909259][ T304] ? bpf_test_run+0x2ae/0x680
[ 20.913927][ T304] ? bpf_ctx_init+0x1a0/0x1a0
[ 20.918587][ T304] ? bpf_prog_test_run_skb+0x75e/0xf00
[ 20.924045][ T304] ? __bpf_trace_bpf_test_finish+0x20/0x20
[ 20.929944][ T304] ? __bpf_prog_get+0x287/0x310
[ 20.934886][ T304] ? __bpf_trace_bpf_test_finish+0x20/0x20
[ 20.940694][ T304] ? __se_sys_bpf+0x2b6f/0xb870
[ 20.945548][ T304] ? check_preemption_disabled+0x9f/0x320
[ 20.951250][ T304] ? debug_smp_processor_id+0x20/0x20
[ 20.956609][ T304] ? check_preemption_disabled+0x9f/0x320
[ 20.962312][ T304] ? check_preemption_disabled+0x9f/0x320
[ 20.968106][ T304] ? debug_smp_processor_id+0x20/0x20
[ 20.973465][ T304] ? debug_smp_processor_id+0x20/0x20
[ 20.978820][ T304] ? __x64_sys_bpf+0x80/0x80
[ 20.983392][ T304] ? switch_mm_irqs_off+0x632/0x9b0
[ 20.988604][ T304] ? _raw_spin_unlock_irq+0x4a/0x60
[ 20.993935][ T304] ? finish_task_switch+0x127/0x560
[ 20.999149][ T304] ? __schedule+0xb03/0x12a0
[ 21.003733][ T304] ? _raw_spin_lock_irq+0xa5/0x1b0
[ 21.008831][ T304] ? _raw_spin_lock_irqsave+0x210/0x210
[ 21.014362][ T304] ? cgroup_update_frozen+0x157/0xab0
[ 21.019803][ T304] ? cgroup_update_frozen+0x157/0xab0
[ 21.025159][ T304] ? cgroup_leave_frozen+0x13c/0x290
[ 21.030426][ T304] ? ptrace_stop+0x6ee/0xa30
[ 21.035099][ T304] ? _raw_spin_unlock_irq+0x4a/0x60
[ 21.040282][ T304] ? ptrace_notify+0x24c/0x350
[ 21.045037][ T304] ? do_notify_parent+0xa10/0xa10
[ 21.050047][ T304] ? check_preemption_disabled+0x153/0x320
[ 21.055841][ T304] ? syscall_trace_enter+0x650/0x940
[ 21.061123][ T304] ? do_syscall_64+0xca/0x1c0
[ 21.065814][ T304] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1
[ 21.071855][ T304] Modules linked in:
[ 21.075772][ T304] ---[ end trace 7b4cf69eef14abbd ]---
[ 21.081259][ T304] RIP: 0010:bpf_skb_ancestor_cgroup_id+0x114/0x270
[ 21.087743][ T304] Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 8d 64 1d fe 48 8b 1b 48 8d bb 1c 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 2f 01 00 00 8b ab 1c 01 00 00 89 ef 44
[ 21.107507][ T304] RSP: 0018:ffff8881dcf874b8 EFLAGS: 00010203
[ 21.113642][ T304] RAX: 0000000000000023 RBX: 0000000000000000 RCX: 0000000000000000
[ 21.121648][ T304] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000000011c
[ 21.129644][ T304] RBP: 0000000000000080 R08: ffffffff8373538a R09: ffff8881dcf87760
[ 21.137606][ T304] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
[ 21.145680][ T304] R13: fffffffb3158442b R14: 0000000000000000 R15: ffff8881e119d812
[ 21.153676][ T304] FS: 00005555555ad300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
[ 21.162702][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 21.169333][ T304] CR2: 00007f0567fa9a70 CR3: 00000001dcec0000 CR4: 00000000003406e0
[ 21.177330][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 21.185409][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 21.193489][ T304] Kernel panic - not syncing: Fatal exception
[ 21.199788][ T304] Kernel Offset: disabled
[ 21.204134][ T304] Rebooting in 86400 seconds..