./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3349258002 <...> Warning: Permanently added '10.128.1.82' (ECDSA) to the list of known hosts. execve("./syz-executor3349258002", ["./syz-executor3349258002"], 0x7ffe23121af0 /* 10 vars */) = 0 brk(NULL) = 0x5555563ea000 brk(0x5555563eac40) = 0x5555563eac40 arch_prctl(ARCH_SET_FS, 0x5555563ea300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3349258002", 4096) = 28 brk(0x55555640bc40) = 0x55555640bc40 brk(0x55555640c000) = 0x55555640c000 mprotect(0x7f1291214000, 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 [ 20.792879][ T22] audit: type=1400 audit(1660975803.260:73): avc: denied { execmem } for pid=304 comm="syz-executor334" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 20.812415][ T22] audit: type=1400 audit(1660975803.260:74): avc: denied { prog_load } for pid=304 comm="syz-executor334" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 20.813170][ T304] kasan: CONFIG_KASAN_INLINE enabled [ 20.831817][ T22] audit: type=1400 audit(1660975803.280:75): avc: denied { prog_run } for pid=304 comm="syz-executor334" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 20.836967][ T304] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 20.836979][ T304] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 20.871085][ T304] CPU: 1 PID: 304 Comm: syz-executor334 Not tainted 5.4.197-syzkaller-00011-gf3c75e616e3f #0 [ 20.881199][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 20.891248][ T304] RIP: 0010:bpf_skb_ancestor_cgroup_id+0x111/0x280 [ 20.897718][ T304] Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 90 14 2a fe 48 8b 1b 48 8d bb 1c 01 00 00 48 89 f8 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 3e 01 00 00 8b ab 1c 01 00 00 89 ef 44 89 [ 20.917291][ T304] RSP: 0018:ffff8881dd58f908 EFLAGS: 00010203 [ 20.923376][ T304] RAX: 0000000000000023 RBX: 0000000000000000 RCX: 0000000000000000 [ 20.931315][ T304] RDX: ffff8881dda18fc0 RSI: 0000000000000080 RDI: 000000000000011c [ 20.939271][ T304] RBP: 0000000000000080 R08: ffffffff8362a777 R09: ffff8881dd58fb70 [ 20.947212][ T304] R10: ffffed103bab1f70 R11: 1ffff1103bab1f6e R12: dffffc0000000000 [ 20.955153][ T304] R13: 000000000000f000 R14: 0000000000000100 R15: ffff8881e14de812 [ 20.963094][ T304] FS: 00005555563ea300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 20.971989][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.978542][ T304] CR2: 00007fdd42eb5a70 CR3: 00000001dda79000 CR4: 00000000003406e0 [ 20.986485][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.994428][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.002365][ T304] Call Trace: [ 21.005637][ T304] ? common_interrupt+0xa/0xf [ 21.010303][ T304] ? ktime_get+0xfd/0x130 [ 21.014600][ T304] ? bpf_test_run+0x260/0x640 [ 21.019257][ T304] ? bpf_prog_test_run_skb+0x7a2/0xf00 [ 21.024686][ T304] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 21.030460][ T304] ? __se_sys_bpf+0x2b7b/0xb990 [ 21.035278][ T304] ? __schedule+0x8d3/0xfc0 [ 21.039747][ T304] ? cgroup_update_frozen+0x139/0x360 [ 21.045084][ T304] ? _raw_spin_lock_irq+0x6d/0x170 [ 21.050163][ T304] ? _raw_spin_lock_irq+0x6d/0x170 [ 21.055239][ T304] ? ptrace_stop+0x6eb/0xa30 [ 21.059797][ T304] ? syscall_trace_enter+0x5c2/0x860 [ 21.065051][ T304] ? __fpregs_load_activate+0x163/0x310 [ 21.070561][ T304] ? do_syscall_64+0xcb/0x1c0 [ 21.075204][ T304] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 21.081232][ T304] Modules linked in: [ 21.085167][ T304] ---[ end trace 12982a2c6d59d65a ]--- [ 21.090641][ T304] RIP: 0010:bpf_skb_ancestor_cgroup_id+0x111/0x280 [ 21.097149][ T304] Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 90 14 2a fe 48 8b 1b 48 8d bb 1c 01 00 00 48 89 f8 48 c1 e8 03 <42> 8a 04 20 84 c0 0f 85 3e 01 00 00 8b ab 1c 01 00 00 89 ef 44 89 [ 21.116749][ T304] RSP: 0018:ffff8881dd58f908 EFLAGS: 00010203 [ 21.122804][ T304] RAX: 0000000000000023 RBX: 0000000000000000 RCX: 0000000000000000 [ 21.130756][ T304] RDX: ffff8881dda18fc0 RSI: 0000000000000080 RDI: 000000000000011c [ 21.138725][ T304] RBP: 0000000000000080 R08: ffffffff8362a777 R09: ffff8881dd58fb70 [ 21.146687][ T304] R10: ffffed103bab1f70 R11: 1ffff1103bab1f6e R12: dffffc0000000000 [ 21.154651][ T304] R13: 000000000000f000 R14: 0000000000000100 R15: ffff8881e14de812 [ 21.162620][ T304] FS: 00005555563ea300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 21.171516][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.178089][ T304] CR2: 00007fdd42eb5a70 CR3: 00000001dda79000 CR4: 00000000003406e0 [ 21.186056][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.194032][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.201994][ T304] Kernel panic - not syncing: Fatal exception [ 21.208198][ T304] Kernel Offset: disabled [ 21.212514][ T304] Rebooting in 86400 seconds..