./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor575158714 <...> Warning: Permanently added '10.128.0.247' (ED25519) to the list of known hosts. execve("./syz-executor575158714", ["./syz-executor575158714"], 0x7ffc017e20c0 /* 10 vars */) = 0 brk(NULL) = 0x55557e6f3000 brk(0x55557e6f3d00) = 0x55557e6f3d00 arch_prctl(ARCH_SET_FS, 0x55557e6f3380) = 0 set_tid_address(0x55557e6f3650) = 341 set_robust_list(0x55557e6f3660, 24) = 0 rseq(0x55557e6f3ca0, 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-executor575158714", 4096) = 27 getrandom("\xbb\x07\x2e\xd1\x86\xe6\x15\xf3", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557e6f3d00 brk(0x55557e714d00) = 0x55557e714d00 brk(0x55557e715000) = 0x55557e715000 mprotect(0x7f0678a3b000, 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 write(1, "executing program\n", 18executing program ) = 18 bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_SCHED_ACT, insn_cnt=14, insns=0x2000000014c0, 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 [ 24.987619][ T23] audit: type=1400 audit(1746588369.850:81): avc: denied { execmem } for pid=341 comm="syz-executor575" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 25.010579][ T23] audit: type=1400 audit(1746588369.880:82): avc: denied { prog_load } for pid=341 comm="syz-executor575" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 25.030342][ T23] audit: type=1400 audit(1746588369.900:83): avc: denied { prog_run } for pid=341 comm="syz-executor575" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 25.050012][ T341] kasan: CONFIG_KASAN_INLINE enabled [ 25.055344][ T341] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 25.063520][ T341] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 25.070463][ T341] CPU: 1 PID: 341 Comm: syz-executor575 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0 [ 25.080599][ T341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 25.090673][ T341] RIP: 0010:bpf_skb_ancestor_cgroup_id+0x11d/0x280 [ 25.097244][ T341] Code: 02 00 00 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 94 42 26 fe 4d 8b 36 49 8d be 1c 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 3b 01 00 00 45 8b be 1c 01 00 00 44 89 [ 25.116840][ T341] RSP: 0018:ffff8881ee5cf978 EFLAGS: 00010203 [ 25.122881][ T341] RAX: 0000000000000023 RBX: fffffffffffffe00 RCX: 0000000000000000 [ 25.130832][ T341] RDX: ffff8881f5e1cec0 RSI: 0000000000000080 RDI: 000000000000011c [ 25.138803][ T341] RBP: ffff8881ee5cf998 R08: 0000000000000040 R09: ffffed103dd93199 [ 25.146753][ T341] R10: ffffed103dd93199 R11: 1ffff1103dd93196 R12: dffffc0000000000 [ 25.154702][ T341] R13: ffffc9000002e020 R14: 0000000000000000 R15: 0000000000000080 [ 25.162654][ T341] FS: 000055557e6f3380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 25.171653][ T341] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.178219][ T341] CR2: 00005583ce8a10c8 CR3: 00000001de669000 CR4: 00000000003406a0 [ 25.186258][ T341] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.194208][ T341] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.202268][ T341] Call Trace: [ 25.205564][ T341] ? trace_event_raw_event_xdp_bulk_tx+0x1f0/0x350 [ 25.212139][ T341] ? __x64_sys_bpf+0x7b/0x90 [ 25.216705][ T341] ? do_syscall_64+0xcf/0x170 [ 25.221361][ T341] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 25.227406][ T341] ? ktime_get+0x10d/0x140 [ 25.231800][ T341] ? bpf_test_run+0x1ea/0x5d0 [ 25.236452][ T341] ? eth_type_trans+0x2c2/0x5e0 [ 25.241277][ T341] ? bpf_ctx_init+0x1b0/0x1b0 [ 25.246017][ T341] ? eth_get_headlen+0x1f0/0x1f0 [ 25.250961][ T341] ? __kasan_check_write+0x14/0x20 [ 25.256077][ T341] ? bpf_prog_test_run_skb+0x721/0xdc0 [ 25.261522][ T341] ? __bpf_trace_bpf_test_finish+0x30/0x30 [ 25.267310][ T341] ? bpf_prog_test_run+0x21a/0x2a0 [ 25.272427][ T341] ? __se_sys_bpf+0x49a/0x570 [ 25.277098][ T341] ? __x64_sys_bpf+0x90/0x90 [ 25.281671][ T341] ? do_syscall_64+0x170/0x170 [ 25.286424][ T341] ? __kasan_check_read+0x11/0x20 [ 25.291433][ T341] ? __x64_sys_bpf+0x7b/0x90 [ 25.296437][ T341] ? do_syscall_64+0xcf/0x170 [ 25.301114][ T341] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 25.307153][ T341] Modules linked in: [ 25.311111][ T341] ---[ end trace aeb4002d6d289177 ]--- [ 25.316583][ T341] RIP: 0010:bpf_skb_ancestor_cgroup_id+0x11d/0x280 [ 25.323106][ T341] Code: 02 00 00 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 94 42 26 fe 4d 8b 36 49 8d be 1c 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 3b 01 00 00 45 8b be 1c 01 00 00 44 89 [ 25.342734][ T341] RSP: 0018:ffff8881ee5cf978 EFLAGS: 00010203 [ 25.348898][ T341] RAX: 0000000000000023 RBX: fffffffffffffe00 RCX: 0000000000000000 [ 25.356884][ T341] RDX: ffff8881f5e1cec0 RSI: 0000000000000080 RDI: 000000000000011c [ 25.364882][ T341] RBP: ffff8881ee5cf998 R08: 0000000000000040 R09: ffffed103dd93199 [ 25.372875][ T341] R10: ffffed103dd93199 R11: 1ffff1103dd93196 R12: dffffc0000000000 [ 25.380859][ T341] R13: ffffc9000002e020 R14: 0000000000000000 R15: 0000000000000080 [ 25.388830][ T341] FS: 000055557e6f3380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 25.397784][ T341] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.404384][ T341] CR2: 00005583ce8a10c8 CR3: 00000001de669000 CR4: 00000000003406a0 [ 25.412371][ T341] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.420349][ T341] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.428332][ T341] Kernel panic - not syncing: Fatal exception [ 25.434689][ T341] Kernel Offset: disabled [ 25.439009][ T341] Rebooting in 86400 seconds..