./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3812821620 <...> Warning: Permanently added '10.128.1.10' (ECDSA) to the list of known hosts. execve("./syz-executor3812821620", ["./syz-executor3812821620"], 0x7ffdb5037f70 /* 10 vars */) = 0 brk(NULL) = 0x555555a51000 brk(0x555555a51c40) = 0x555555a51c40 arch_prctl(ARCH_SET_FS, 0x555555a51300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3812821620", 4096) = 28 brk(0x555555a72c40) = 0x555555a72c40 brk(0x555555a73000) = 0x555555a73000 mprotect(0x7f57e441e000, 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_CLS, insn_cnt=4, insns=0x20000700, license="GPL"}, 21) = 3 [ 21.261169][ T22] audit: type=1400 audit(1661044858.800:73): avc: denied { execmem } for pid=304 comm="syz-executor381" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.280632][ T22] audit: type=1400 audit(1661044858.800:74): avc: denied { prog_load } for pid=304 comm="syz-executor381" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 21.281285][ T304] kasan: CONFIG_KASAN_INLINE enabled [ 21.300219][ T22] audit: type=1400 audit(1661044858.820:75): avc: denied { prog_run } for pid=304 comm="syz-executor381" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 21.305085][ T304] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 21.332240][ T304] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 21.339145][ T304] CPU: 1 PID: 304 Comm: syz-executor381 Not tainted 5.4.197-syzkaller-00011-gf3c75e616e3f #0 [ 21.349257][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 21.359296][ T304] RIP: 0010:bpf_skb_cgroup_id+0x10c/0x190 [ 21.364980][ 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 23 16 2a 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 05 16 2a fe 48 8b 1b 48 83 c3 68 [ 21.384551][ T304] RSP: 0018:ffff8881ddef7a90 EFLAGS: 00010206 [ 21.390582][ T304] RAX: 0000000000000028 RBX: 0000000000000140 RCX: ffff8881ddeb6e40 [ 21.398572][ T304] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 [ 21.406510][ T304] RBP: ffff8881ddef7ae0 R08: ffffffff8362a5e3 R09: ffff8881ddef7b70 [ 21.414454][ T304] R10: ffffed103bbdef70 R11: 1ffff1103bbdef6e R12: dffffc0000000000 [ 21.422404][ T304] R13: 0000000000008000 R14: ffff8881ddfa2012 R15: ffff8881ddfa22a0 [ 21.430350][ T304] FS: 0000555555a51300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 21.439246][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.445800][ T304] CR2: 0000000000a04258 CR3: 00000001e2a88000 CR4: 00000000003406e0 [ 21.453748][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.461689][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.469628][ T304] Call Trace: [ 21.472905][ T304] ? bpf_test_run+0x260/0x640 [ 21.477566][ T304] ? bpf_prog_test_run_skb+0x7a2/0xf00 [ 21.483005][ T304] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 21.488775][ T304] ? __se_sys_bpf+0x2b7b/0xb990 [ 21.493590][ T304] ? __schedule+0x8d3/0xfc0 [ 21.498062][ T304] ? cgroup_update_frozen+0x139/0x360 [ 21.503402][ T304] ? _raw_spin_lock_irq+0x6d/0x170 [ 21.508493][ T304] ? _raw_spin_lock_irq+0x6d/0x170 [ 21.513583][ T304] ? ptrace_stop+0x6eb/0xa30 [ 21.518142][ T304] ? syscall_trace_enter+0x5c2/0x860 [ 21.523395][ T304] ? __fpregs_load_activate+0x163/0x310 [ 21.528910][ T304] ? do_syscall_64+0xcb/0x1c0 [ 21.533555][ T304] ? entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 21.539598][ T304] Modules linked in: [ 21.543507][ T304] ---[ end trace 82a55a1b91a9bc9e ]--- [ 21.548973][ T304] RIP: 0010:bpf_skb_cgroup_id+0x10c/0x190 [ 21.554661][ 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 23 16 2a 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 05 16 2a fe 48 8b 1b 48 83 c3 68 [ 21.574296][ T304] RSP: 0018:ffff8881ddef7a90 EFLAGS: 00010206 [ 21.580360][ T304] RAX: 0000000000000028 RBX: 0000000000000140 RCX: ffff8881ddeb6e40 [ 21.588342][ T304] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 [ 21.596288][ T304] RBP: ffff8881ddef7ae0 R08: ffffffff8362a5e3 R09: ffff8881ddef7b70 [ 21.604254][ T304] R10: ffffed103bbdef70 R11: 1ffff1103bbdef6e R12: dffffc0000000000 [ 21.612222][ T304] R13: 0000000000008000 R14: ffff8881ddfa2012 R15: ffff8881ddfa22a0 [ 21.620193][ T304] FS: 0000555555a51300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 21.629130][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.635689][ T304] CR2: 0000000000a04258 CR3: 00000001e2a88000 CR4: 00000000003406e0 [ 21.643670][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.651638][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.659605][ T304] Kernel panic - not syncing: Fatal exception [ 21.665707][ T304] Kernel Offset: disabled [ 21.670006][ T304] Rebooting in 86400 seconds..