./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2496007863 <...> Warning: Permanently added '10.128.0.20' (ED25519) to the list of known hosts. execve("./syz-executor2496007863", ["./syz-executor2496007863"], 0x7ffc60beccb0 /* 10 vars */) = 0 brk(NULL) = 0x555588f58000 brk(0x555588f58d00) = 0x555588f58d00 arch_prctl(ARCH_SET_FS, 0x555588f58380) = 0 set_tid_address(0x555588f58650) = 341 set_robust_list(0x555588f58660, 24) = 0 rseq(0x555588f58ca0, 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-executor2496007863", 4096) = 28 getrandom("\xe0\x30\x22\x58\xd9\xa7\xfe\x4a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555588f58d00 brk(0x555588f79d00) = 0x555588f79d00 brk(0x555588f7a000) = 0x555588f7a000 mprotect(0x7f794f3e5000, 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_CLS, insn_cnt=4, insns=0x200000000700, 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, prog_btf_fd=0, func_info_rec_size=0, func_info=NULL, func_info_cnt=0, line_info_rec_size=0, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 148) = 3 [ 27.516581][ T23] audit: type=1400 audit(1746507141.560:81): avc: denied { execmem } for pid=341 comm="syz-executor249" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 27.536531][ T23] audit: type=1400 audit(1746507141.580:82): avc: denied { prog_load } for pid=341 comm="syz-executor249" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 27.556093][ T23] audit: type=1400 audit(1746507141.600:83): avc: denied { prog_run } for pid=341 comm="syz-executor249" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 27.556749][ T341] kasan: CONFIG_KASAN_INLINE enabled [ 27.580629][ T341] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 27.588798][ T341] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 27.595725][ T341] CPU: 0 PID: 341 Comm: syz-executor249 Not tainted 5.4.292-syzkaller-00021-gcd8e74fa0fa3 #0 [ 27.605847][ T341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 27.615901][ T341] RIP: 0010:bpf_skb_cgroup_id+0x118/0x1a0 [ 27.621614][ T341] Code: a0 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 38 44 26 fe 41 be 40 01 00 00 4c 03 33 4c 89 f0 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 f7 e8 19 44 26 fe 49 8b 1e 48 83 c3 68 [ 27.641231][ T341] RSP: 0018:ffff8881ee607b00 EFLAGS: 00010206 [ 27.647279][ T341] RAX: 0000000000000028 RBX: ffff8881eecd42a0 RCX: ffff8881f37c0000 [ 27.655229][ T341] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 [ 27.663179][ T341] RBP: ffff8881ee607b18 R08: ffff8881ee607d20 R09: ffffed103dcc4415 [ 27.671129][ T341] R10: ffffed103dcc4415 R11: 1ffff1103dcc4414 R12: dffffc0000000000 [ 27.679213][ T341] R13: ffffc90000044020 R14: 0000000000000140 R15: dffffc0000000000 [ 27.687179][ T341] FS: 0000555588f58380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 27.696087][ T341] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.702656][ T341] CR2: 0000555da63f6838 CR3: 00000001eedee000 CR4: 00000000003406b0 [ 27.710694][ T341] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.718651][ T341] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.726600][ T341] Call Trace: [ 27.729891][ T341] ? bpf_test_run+0x1ea/0x5d0 [ 27.734565][ T341] ? eth_type_trans+0x2c2/0x5e0 [ 27.739391][ T341] ? bpf_ctx_init+0x1b0/0x1b0 [ 27.744051][ T341] ? eth_get_headlen+0x1f0/0x1f0 [ 27.748992][ T341] ? __kasan_check_write+0x14/0x20 [ 27.754429][ T341] ? bpf_prog_test_run_skb+0x721/0xdc0 [ 27.759953][ T341] ? __bpf_trace_bpf_test_finish+0x30/0x30 [ 27.765754][ T341] ? bpf_prog_test_run+0x21a/0x2a0 [ 27.770842][ T341] ? __se_sys_bpf+0x49a/0x570 [ 27.775685][ T341] ? __x64_sys_bpf+0x90/0x90 [ 27.780262][ T341] ? do_syscall_64+0x170/0x170 [ 27.785014][ T341] ? __kasan_check_read+0x11/0x20 [ 27.790022][ T341] ? __x64_sys_bpf+0x7b/0x90 [ 27.794594][ T341] ? do_syscall_64+0xcf/0x170 [ 27.799260][ T341] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 27.805314][ T341] Modules linked in: [ 27.809299][ T341] ---[ end trace 6fb84506dcc66b61 ]--- [ 27.814790][ T341] RIP: 0010:bpf_skb_cgroup_id+0x118/0x1a0 [ 27.820530][ T341] Code: a0 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 38 44 26 fe 41 be 40 01 00 00 4c 03 33 4c 89 f0 48 c1 e8 03 <42> 80 3c 38 00 74 08 4c 89 f7 e8 19 44 26 fe 49 8b 1e 48 83 c3 68 [ 27.840143][ T341] RSP: 0018:ffff8881ee607b00 EFLAGS: 00010206 [ 27.846320][ T341] RAX: 0000000000000028 RBX: ffff8881eecd42a0 RCX: ffff8881f37c0000 [ 27.854338][ T341] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 [ 27.862297][ T341] RBP: ffff8881ee607b18 R08: ffff8881ee607d20 R09: ffffed103dcc4415 [ 27.870270][ T341] R10: ffffed103dcc4415 R11: 1ffff1103dcc4414 R12: dffffc0000000000 [ 27.878258][ T341] R13: ffffc90000044020 R14: 0000000000000140 R15: dffffc0000000000 [ 27.886250][ T341] FS: 0000555588f58380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 27.895194][ T341] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.901768][ T341] CR2: 0000555da63f6838 CR3: 00000001eedee000 CR4: 00000000003406b0 [ 27.909747][ T341] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.917735][ T341] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.925732][ T341] Kernel panic - not syncing: Fatal exception [ 27.932021][ T341] Kernel Offset: disabled [ 27.936336][ T341] Rebooting in 86400 seconds..