./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1730211757 <...> Warning: Permanently added '10.128.1.80' (ED25519) to the list of known hosts. execve("./syz-executor1730211757", ["./syz-executor1730211757"], 0x7ffd66992db0 /* 10 vars */) = 0 brk(NULL) = 0x555556b5c000 brk(0x555556b5cd00) = 0x555556b5cd00 arch_prctl(ARCH_SET_FS, 0x555556b5c380) = 0 set_tid_address(0x555556b5c650) = 362 set_robust_list(0x555556b5c660, 24) = 0 rseq(0x555556b5cca0, 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-executor1730211757", 4096) = 28 getrandom("\xc3\xba\x99\x88\x68\x95\xaf\x8b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556b5cd00 brk(0x555556b7dd00) = 0x555556b7dd00 brk(0x555556b7e000) = 0x555556b7e000 mprotect(0x7fbe2744b000, 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=0x20000180, 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_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL}, 128) = 3 [ 34.178483][ T23] audit: type=1400 audit(1704927589.310:66): avc: denied { execmem } for pid=362 comm="syz-executor173" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 34.198652][ T362] kasan: CONFIG_KASAN_INLINE enabled [ 34.198900][ T23] audit: type=1400 audit(1704927589.310:67): avc: denied { prog_load } for pid=362 comm="syz-executor173" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 34.203807][ T362] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 34.203833][ T362] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 34.203881][ T362] CPU: 0 PID: 362 Comm: syz-executor173 Not tainted 5.4.259-syzkaller-00012-g57a39998c138 #0 [ 34.247619][ T362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 34.257538][ T362] RIP: 0010:bpf_skb_ancestor_cgroup_id+0x114/0x270 [ 34.263865][ T362] Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 2d 57 0c fe 48 8b 1b 48 8d bb 1c 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 2f 01 00 00 8b ab 1c 01 00 00 89 ef 44 [ 34.283478][ T362] RSP: 0018:ffff8881dcaa7638 EFLAGS: 00010203 [ 34.289367][ T362] RAX: 0000000000000023 RBX: 0000000000000000 RCX: 0000000000000000 [ 34.297241][ T362] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000000011c [ 34.305000][ T362] RBP: 0000000000000080 R08: ffffffff8387be1a R09: ffff8881dcaa7760 [ 34.312900][ T362] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 34.320717][ T362] R13: fffffff80afb3ffa R14: 0000000003430000 R15: ffff8881de8a9012 [ 34.328704][ T362] FS: 0000555556b5c380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 34.337476][ T362] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.343888][ T362] CR2: 000000000064a110 CR3: 00000001e0182000 CR4: 00000000003406b0 [ 34.351703][ T362] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.359513][ T362] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.367443][ T362] Call Trace: [ 34.370566][ T362] ? __die+0xb4/0x100 [ 34.374379][ T362] ? die+0x26/0x50 [ 34.377935][ T362] ? do_general_protection+0x266/0x3c0 [ 34.383230][ T362] ? do_trap+0x340/0x340 [ 34.387436][ T362] ? __kasan_kmalloc+0x1d9/0x210 [ 34.392295][ T362] ? kmem_cache_alloc+0xd9/0x250 [ 34.397066][ T362] ? build_skb+0x26/0x440 [ 34.401235][ T362] ? bpf_prog_test_run_skb+0x302/0xf00 [ 34.406531][ T362] ? __se_sys_bpf+0x2e37/0xbcb0 [ 34.411212][ T362] ? do_syscall_64+0xca/0x1c0 [ 34.415726][ T362] ? general_protection+0x28/0x30 [ 34.420594][ T362] ? bpf_skb_ancestor_cgroup_id+0xda/0x270 [ 34.426350][ T362] ? bpf_skb_ancestor_cgroup_id+0x114/0x270 [ 34.432064][ T362] ? bpf_skb_ancestor_cgroup_id+0xda/0x270 [ 34.437793][ T362] ? bpf_test_run+0x2ae/0x6c0 [ 34.442314][ T362] ? bpf_ctx_init+0x1a0/0x1a0 [ 34.446908][ T362] ? build_skb+0x259/0x440 [ 34.451155][ T362] ? bpf_prog_test_run_skb+0x73c/0xf00 [ 34.456460][ T362] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 34.462110][ T362] ? __bpf_prog_get+0x287/0x310 [ 34.466787][ T362] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 34.472441][ T362] ? __se_sys_bpf+0x2e37/0xbcb0 [ 34.477119][ T362] ? check_preemption_disabled+0x9f/0x320 [ 34.482664][ T362] ? debug_smp_processor_id+0x20/0x20 [ 34.488020][ T362] ? check_preemption_disabled+0x9f/0x320 [ 34.493518][ T362] ? check_preemption_disabled+0x9f/0x320 [ 34.499070][ T362] ? debug_smp_processor_id+0x20/0x20 [ 34.504287][ T362] ? debug_smp_processor_id+0x20/0x20 [ 34.509512][ T362] ? __x64_sys_bpf+0x80/0x80 [ 34.513914][ T362] ? switch_mm_irqs_off+0x6b5/0xab0 [ 34.518951][ T362] ? _raw_spin_unlock_irq+0x4a/0x60 [ 34.523977][ T362] ? finish_task_switch+0x130/0x590 [ 34.529027][ T362] ? __schedule+0xb0d/0x1320 [ 34.533448][ T362] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 34.538389][ T362] ? _raw_spin_lock_irqsave+0x210/0x210 [ 34.543773][ T362] ? cgroup_update_frozen+0x157/0xab0 [ 34.548982][ T362] ? cgroup_update_frozen+0x157/0xab0 [ 34.554192][ T362] ? cgroup_leave_frozen+0x13c/0x290 [ 34.559397][ T362] ? ptrace_stop+0x6ee/0xa30 [ 34.563830][ T362] ? _raw_spin_unlock_irq+0x4a/0x60 [ 34.568948][ T362] ? ptrace_notify+0x24c/0x350 [ 34.573548][ T362] ? do_notify_parent+0xa10/0xa10 [ 34.578417][ T362] ? check_preemption_disabled+0x153/0x320 [ 34.584052][ T362] ? syscall_trace_enter+0x650/0x940 [ 34.589190][ T362] ? do_syscall_64+0xca/0x1c0 [ 34.593684][ T362] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 34.599570][ T362] Modules linked in: [ 34.603450][ T362] ---[ end trace 76171594479c8e83 ]--- [ 34.608778][ T362] RIP: 0010:bpf_skb_ancestor_cgroup_id+0x114/0x270 [ 34.615174][ T362] Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 2d 57 0c fe 48 8b 1b 48 8d bb 1c 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 0f 85 2f 01 00 00 8b ab 1c 01 00 00 89 ef 44 [ 34.634749][ T362] RSP: 0018:ffff8881dcaa7638 EFLAGS: 00010203 [ 34.640664][ T362] RAX: 0000000000000023 RBX: 0000000000000000 RCX: 0000000000000000 [ 34.641023][ T23] audit: type=1400 audit(1704927589.330:68): avc: denied { prog_run } for pid=362 comm="syz-executor173" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 34.648515][ T362] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000000011c [ 34.648556][ T362] RBP: 0000000000000080 R08: ffffffff8387be1a R09: ffff8881dcaa7760 [ 34.683386][ T362] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 34.691873][ T362] R13: fffffff80afb3ffa R14: 0000000003430000 R15: ffff8881de8a9012 [ 34.699755][ T362] FS: 0000555556b5c380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 34.708501][ T362] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.715048][ T362] CR2: 000000000064a110 CR3: 00000001e0182000 CR4: 00000000003406b0 [ 34.722879][ T362] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.730746][ T362] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.738574][ T362] Kernel panic - not syncing: Fatal exception [ 34.744600][ T362] Kernel Offset: disabled [ 34.748752][ T362] Rebooting in 86400 seconds..