./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3851118366 <...> Warning: Permanently added '10.128.0.142' (ECDSA) to the list of known hosts. execve("./syz-executor3851118366", ["./syz-executor3851118366"], 0x7ffc52b1edc0 /* 10 vars */) = 0 brk(NULL) = 0x555555f55000 brk(0x555555f55c40) = 0x555555f55c40 arch_prctl(ARCH_SET_FS, 0x555555f55300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3851118366", 4096) = 28 brk(0x555555f76c40) = 0x555555f76c40 brk(0x555555f77000) = 0x555555f77000 mprotect(0x7f4bfd977000, 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=0x200004c0, license="GPL"}, 21) = 3 [ 27.103089][ T23] audit: type=1400 audit(1687571731.540:66): avc: denied { execmem } for pid=359 comm="syz-executor385" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 27.123892][ T23] audit: type=1400 audit(1687571731.560:67): avc: denied { prog_load } for pid=359 comm="syz-executor385" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 27.143479][ T23] audit: type=1400 audit(1687571731.580:68): avc: denied { prog_run } for pid=359 comm="syz-executor385" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 27.144144][ T359] kasan: CONFIG_KASAN_INLINE enabled [ 27.167782][ T359] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 27.175717][ T359] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 27.182456][ T359] CPU: 0 PID: 359 Comm: syz-executor385 Not tainted 5.4.242-syzkaller-00014-ged558a4e054c #0 [ 27.192428][ T359] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 27.202335][ T359] RIP: 0010:bpf_skb_cgroup_id+0x10f/0x190 [ 27.207880][ T359] Code: c7 a0 02 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 e0 e6 0c 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 c2 e6 0c fe 48 8b 1b 48 83 c3 68 [ 27.227321][ T359] RSP: 0018:ffff8881dc37f640 EFLAGS: 00010206 [ 27.233224][ T359] RAX: 0000000000000028 RBX: 0000000000000140 RCX: ffff8881dc216e40 [ 27.241305][ T359] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 [ 27.249125][ T359] RBP: ffff8881dc37f690 R08: ffffffff8386fd06 R09: ffff8881dc37f760 [ 27.256928][ T359] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 27.264737][ T359] R13: fffffff9af33bb19 R14: ffff8881dc3b2012 R15: ffff8881dc3b22a0 [ 27.272549][ T359] FS: 0000555555f55300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 27.281313][ T359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.287736][ T359] CR2: 00000000202a1000 CR3: 00000001dc288000 CR4: 00000000003406b0 [ 27.295551][ T359] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.303359][ T359] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.311170][ T359] Call Trace: [ 27.314306][ T359] ? bpf_test_run+0x2ae/0x6c0 [ 27.318813][ T359] ? bpf_ctx_init+0x1a0/0x1a0 [ 27.323325][ T359] ? build_skb+0x259/0x440 [ 27.327581][ T359] ? bpf_prog_test_run_skb+0x73c/0xf00 [ 27.332878][ T359] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 27.338517][ T359] ? __bpf_prog_get+0x287/0x310 [ 27.343202][ T359] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 27.348845][ T359] ? __se_sys_bpf+0x2e37/0xbcb0 [ 27.353532][ T359] ? check_preemption_disabled+0x9f/0x320 [ 27.359098][ T359] ? debug_smp_processor_id+0x20/0x20 [ 27.364297][ T359] ? check_preemption_disabled+0x9f/0x320 [ 27.369847][ T359] ? check_preemption_disabled+0x9f/0x320 [ 27.375402][ T359] ? debug_smp_processor_id+0x20/0x20 [ 27.380614][ T359] ? debug_smp_processor_id+0x20/0x20 [ 27.385821][ T359] ? __x64_sys_bpf+0x80/0x80 [ 27.390245][ T359] ? switch_mm_irqs_off+0x6b5/0xab0 [ 27.395283][ T359] ? _raw_spin_unlock_irq+0x4a/0x60 [ 27.400314][ T359] ? finish_task_switch+0x130/0x590 [ 27.405346][ T359] ? __schedule+0xb0d/0x1320 [ 27.409777][ T359] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 27.414721][ T359] ? _raw_spin_lock_irqsave+0x210/0x210 [ 27.420102][ T359] ? cgroup_update_frozen+0x157/0xab0 [ 27.425586][ T359] ? cgroup_update_frozen+0x157/0xab0 [ 27.430782][ T359] ? cgroup_leave_frozen+0x13c/0x290 [ 27.435902][ T359] ? ptrace_stop+0x6ee/0xa30 [ 27.440431][ T359] ? _raw_spin_unlock_irq+0x4a/0x60 [ 27.445453][ T359] ? ptrace_notify+0x24c/0x350 [ 27.450046][ T359] ? do_notify_parent+0xa10/0xa10 [ 27.454908][ T359] ? check_preemption_disabled+0x153/0x320 [ 27.460566][ T359] ? syscall_trace_enter+0x650/0x940 [ 27.466016][ T359] ? do_syscall_64+0xca/0x1c0 [ 27.470528][ T359] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 27.476423][ T359] Modules linked in: [ 27.480219][ T359] ---[ end trace c793c98a84e33714 ]--- [ 27.485503][ T359] RIP: 0010:bpf_skb_cgroup_id+0x10f/0x190 [ 27.491009][ T359] Code: c7 a0 02 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 e0 e6 0c 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 c2 e6 0c fe 48 8b 1b 48 83 c3 68 [ 27.510484][ T359] RSP: 0018:ffff8881dc37f640 EFLAGS: 00010206 [ 27.516367][ T359] RAX: 0000000000000028 RBX: 0000000000000140 RCX: ffff8881dc216e40 [ 27.524192][ T359] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 [ 27.532602][ T359] RBP: ffff8881dc37f690 R08: ffffffff8386fd06 R09: ffff8881dc37f760 [ 27.540566][ T359] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 27.548503][ T359] R13: fffffff9af33bb19 R14: ffff8881dc3b2012 R15: ffff8881dc3b22a0 [ 27.556321][ T359] FS: 0000555555f55300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 27.565068][ T359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.571466][ T359] CR2: 00000000202a1000 CR3: 00000001dc288000 CR4: 00000000003406b0 [ 27.579331][ T359] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.587100][ T359] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.594919][ T359] Kernel panic - not syncing: Fatal exception [ 27.601092][ T359] Kernel Offset: disabled [ 27.605214][ T359] Rebooting in 86400 seconds..