./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2880419119 <...> Warning: Permanently added '10.128.1.86' (ECDSA) to the list of known hosts. execve("./syz-executor2880419119", ["./syz-executor2880419119"], 0x7ffce288c120 /* 10 vars */) = 0 brk(NULL) = 0x5555574b2000 brk(0x5555574b2c40) = 0x5555574b2c40 arch_prctl(ARCH_SET_FS, 0x5555574b2300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2880419119", 4096) = 28 brk(0x5555574d3c40) = 0x5555574d3c40 brk(0x5555574d4000) = 0x5555574d4000 mprotect(0x7fc583969000, 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_CGROUP_SKB, insn_cnt=3, insns=0x20000dc0, license="GPL", 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 [ 18.682536][ T22] audit: type=1400 audit(1678554110.399:73): avc: denied { execmem } for pid=304 comm="syz-executor288" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 18.685517][ T22] audit: type=1400 audit(1678554110.399:74): avc: denied { prog_load } for pid=304 comm="syz-executor288" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 18.685979][ T304] kasan: CONFIG_KASAN_INLINE enabled [ 18.688484][ T22] audit: type=1400 audit(1678554110.399:75): avc: denied { prog_run } for pid=304 comm="syz-executor288" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 18.688880][ T304] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 18.692569][ T304] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 18.693489][ T304] CPU: 1 PID: 304 Comm: syz-executor288 Not tainted 5.4.225-syzkaller-00007-g250ac66f1853 #0 [ 18.695165][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 18.696527][ T304] RIP: 0010:bpf_skb_cgroup_id+0x10f/0x190 [ 18.697423][ T304] Code: c7 a0 02 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 20 66 1d fe bb 40 01 00 00 49 03 1f 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 02 66 1d fe 48 8b 1b 48 83 c3 68 [ 18.700185][ T304] RSP: 0018:ffff8881dd487640 EFLAGS: 00010206 [ 18.701039][ T304] RAX: 0000000000000028 RBX: 0000000000000140 RCX: ffff8881dd875e80 [ 18.702158][ T304] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 [ 18.704616][ T304] RBP: ffff8881dd487690 R08: ffffffff837351f6 R09: ffff8881dd487760 [ 18.712563][ T304] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 18.720503][ T304] R13: fffffffba767be53 R14: ffff8881dd47c812 R15: ffff8881dd47caa0 [ 18.728453][ T304] FS: 00005555574b2300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 18.737449][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 18.744002][ T304] CR2: 0000000020282000 CR3: 00000001dea50000 CR4: 00000000003406e0 [ 18.751949][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 18.759902][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 18.767849][ T304] Call Trace: [ 18.771116][ T304] ? bpf_test_run+0x2ae/0x680 [ 18.775785][ T304] ? bpf_ctx_init+0x1a0/0x1a0 [ 18.780432][ T304] ? build_skb+0x259/0x440 [ 18.784822][ T304] ? bpf_prog_test_run_skb+0x75e/0xf00 [ 18.790253][ T304] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 18.796045][ T304] ? __bpf_prog_get+0x287/0x310 [ 18.800863][ T304] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 18.806648][ T304] ? __se_sys_bpf+0x2b6f/0xb870 [ 18.811467][ T304] ? check_preemption_disabled+0x9f/0x320 [ 18.817155][ T304] ? debug_smp_processor_id+0x20/0x20 [ 18.822497][ T304] ? check_preemption_disabled+0x9f/0x320 [ 18.828183][ T304] ? check_preemption_disabled+0x9f/0x320 [ 18.833868][ T304] ? debug_smp_processor_id+0x20/0x20 [ 18.839203][ T304] ? debug_smp_processor_id+0x20/0x20 [ 18.844578][ T304] ? __x64_sys_bpf+0x80/0x80 [ 18.849149][ T304] ? switch_mm_irqs_off+0x632/0x9b0 [ 18.854317][ T304] ? _raw_spin_unlock_irq+0x4a/0x60 [ 18.859480][ T304] ? finish_task_switch+0x127/0x560 [ 18.864641][ T304] ? __schedule+0xb03/0x12a0 [ 18.869198][ T304] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 18.874284][ T304] ? _raw_spin_lock_irqsave+0x210/0x210 [ 18.879795][ T304] ? cgroup_update_frozen+0x157/0xab0 [ 18.885128][ T304] ? cgroup_update_frozen+0x157/0xab0 [ 18.890467][ T304] ? cgroup_leave_frozen+0x13c/0x290 [ 18.895716][ T304] ? ptrace_stop+0x6ee/0xa30 [ 18.900271][ T304] ? _raw_spin_unlock_irq+0x4a/0x60 [ 18.905432][ T304] ? ptrace_notify+0x24c/0x350 [ 18.910162][ T304] ? do_notify_parent+0xa10/0xa10 [ 18.915150][ T304] ? check_preemption_disabled+0x153/0x320 [ 18.920923][ T304] ? syscall_trace_enter+0x650/0x940 [ 18.926177][ T304] ? do_syscall_64+0xca/0x1c0 [ 18.930822][ T304] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 18.936850][ T304] Modules linked in: [ 18.940746][ T304] ---[ end trace 462d5f3cc3a10317 ]--- [ 18.946182][ T304] RIP: 0010:bpf_skb_cgroup_id+0x10f/0x190 [ 18.951897][ T304] Code: c7 a0 02 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 20 66 1d fe bb 40 01 00 00 49 03 1f 48 89 d8 48 c1 e8 03 <42> 80 3c 20 00 74 08 48 89 df e8 02 66 1d fe 48 8b 1b 48 83 c3 68 [ 18.971503][ T304] RSP: 0018:ffff8881dd487640 EFLAGS: 00010206 [ 18.977562][ T304] RAX: 0000000000000028 RBX: 0000000000000140 RCX: ffff8881dd875e80 [ 18.985508][ T304] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 [ 18.993472][ T304] RBP: ffff8881dd487690 R08: ffffffff837351f6 R09: ffff8881dd487760 [ 19.001433][ T304] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 19.009399][ T304] R13: fffffffba767be53 R14: ffff8881dd47c812 R15: ffff8881dd47caa0 [ 19.017366][ T304] FS: 00005555574b2300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 19.026269][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 19.032841][ T304] CR2: 0000000020282000 CR3: 00000001dea50000 CR4: 00000000003406e0 [ 19.040809][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 19.048775][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 19.056723][ T304] Kernel panic - not syncing: Fatal exception [ 19.062932][ T304] Kernel Offset: disabled [ 19.067232][ T304] Rebooting in 86400 seconds..