./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3457324513 <...> Warning: Permanently added '10.128.0.173' (ED25519) to the list of known hosts. execve("./syz-executor3457324513", ["./syz-executor3457324513"], 0x7ffc9f0e4ac0 /* 10 vars */) = 0 brk(NULL) = 0x555555cad000 brk(0x555555cadd00) = 0x555555cadd00 arch_prctl(ARCH_SET_FS, 0x555555cad380) = 0 set_tid_address(0x555555cad650) = 355 set_robust_list(0x555555cad660, 24) = 0 rseq(0x555555cadca0, 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-executor3457324513", 4096) = 28 getrandom("\xe8\x0f\x3c\x4e\x55\x9f\xe6\xe0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555cadd00 brk(0x555555cced00) = 0x555555cced00 brk(0x555555ccf000) = 0x555555ccf000 mprotect(0x7f18be3f4000, 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=0x20000ac0, license="GPL"}, 21) = 3 [ 22.605621][ T23] audit: type=1400 audit(1713676214.150:66): avc: denied { execmem } for pid=355 comm="syz-executor345" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 22.625289][ T23] audit: type=1400 audit(1713676214.170:67): avc: denied { prog_load } for pid=355 comm="syz-executor345" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 22.625823][ T355] kasan: CONFIG_KASAN_INLINE enabled [ 22.644861][ T23] audit: type=1400 audit(1713676214.170:68): avc: denied { prog_run } for pid=355 comm="syz-executor345" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 22.649406][ T355] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 22.676266][ T355] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 22.682981][ T355] CPU: 1 PID: 355 Comm: syz-executor345 Not tainted 5.4.268-syzkaller-00003-g2d5d8240a7cb #0 [ 22.692953][ T355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 22.702871][ T355] RIP: 0010:bpf_skb_cgroup_id+0x10f/0x190 [ 22.708405][ T355] Code: c7 a0 02 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 a0 5a 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 82 5a 0c fe 48 8b 1b 48 83 c3 68 [ 22.728091][ T355] RSP: 0018:ffff8881dc01f640 EFLAGS: 00010206 [ 22.733972][ T355] RAX: 0000000000000028 RBX: 0000000000000140 RCX: ffff8881dcfa5e80 [ 22.741787][ T355] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 [ 22.749599][ T355] RBP: ffff8881dc01f690 R08: ffffffff8387c046 R09: ffff8881dc01f760 [ 22.757410][ T355] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 22.765242][ T355] R13: fffffffabc8d2a54 R14: ffff8881dc05c012 R15: ffff8881dc05c2a0 [ 22.773031][ T355] FS: 0000555555cad380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 22.781798][ T355] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.788216][ T355] CR2: 000000000191c258 CR3: 00000001dc421000 CR4: 00000000003406a0 [ 22.796029][ T355] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.803838][ T355] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.811647][ T355] Call Trace: [ 22.814788][ T355] ? __die+0xb4/0x100 [ 22.818598][ T355] ? die+0x26/0x50 [ 22.822166][ T355] ? do_general_protection+0x266/0x3c0 [ 22.827448][ T355] ? __kasan_kmalloc+0x1d9/0x210 [ 22.832221][ T355] ? do_trap+0x340/0x340 [ 22.836304][ T355] ? __kasan_kmalloc+0x171/0x210 [ 22.841075][ T355] ? kmem_cache_alloc+0xd9/0x250 [ 22.845888][ T355] ? build_skb+0x26/0x440 [ 22.850015][ T355] ? bpf_prog_test_run_skb+0x302/0xf00 [ 22.855311][ T355] ? do_syscall_64+0xca/0x1c0 [ 22.859827][ T355] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 22.865726][ T355] ? general_protection+0x28/0x30 [ 22.870587][ T355] ? bpf_skb_cgroup_id+0xd6/0x190 [ 22.875447][ T355] ? bpf_skb_cgroup_id+0x10f/0x190 [ 22.880391][ T355] ? bpf_test_run+0x2ae/0x6c0 [ 22.884907][ T355] ? bpf_ctx_init+0x1a0/0x1a0 [ 22.889418][ T355] ? build_skb+0x259/0x440 [ 22.893673][ T355] ? bpf_prog_test_run_skb+0x73c/0xf00 [ 22.898981][ T355] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 22.904615][ T355] ? __bpf_prog_get+0x287/0x310 [ 22.909304][ T355] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 22.914941][ T355] ? __se_sys_bpf+0x2e37/0xbcb0 [ 22.919629][ T355] ? check_preemption_disabled+0x9f/0x320 [ 22.925181][ T355] ? debug_smp_processor_id+0x20/0x20 [ 22.930383][ T355] ? check_preemption_disabled+0x9f/0x320 [ 22.935940][ T355] ? check_preemption_disabled+0x9f/0x320 [ 22.941494][ T355] ? debug_smp_processor_id+0x20/0x20 [ 22.946710][ T355] ? debug_smp_processor_id+0x20/0x20 [ 22.951927][ T355] ? __x64_sys_bpf+0x80/0x80 [ 22.956333][ T355] ? switch_mm_irqs_off+0x6b5/0xab0 [ 22.961369][ T355] ? _raw_spin_unlock_irq+0x4a/0x60 [ 22.966412][ T355] ? finish_task_switch+0x130/0x590 [ 22.971466][ T355] ? __schedule+0xb0d/0x1320 [ 22.975867][ T355] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 22.980814][ T355] ? _raw_spin_lock_irqsave+0x210/0x210 [ 22.986196][ T355] ? cgroup_update_frozen+0x157/0xab0 [ 22.991400][ T355] ? cgroup_update_frozen+0x157/0xab0 [ 22.996608][ T355] ? cgroup_leave_frozen+0x13c/0x290 [ 23.001728][ T355] ? ptrace_stop+0x6ee/0xa30 [ 23.006163][ T355] ? _raw_spin_unlock_irq+0x4a/0x60 [ 23.011187][ T355] ? ptrace_notify+0x24c/0x350 [ 23.015785][ T355] ? do_notify_parent+0xa10/0xa10 [ 23.020652][ T355] ? check_preemption_disabled+0x153/0x320 [ 23.026292][ T355] ? syscall_trace_enter+0x650/0x940 [ 23.031414][ T355] ? do_syscall_64+0xca/0x1c0 [ 23.035922][ T355] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 23.041820][ T355] Modules linked in: [ 23.045614][ T355] ---[ end trace 71a09ce57c52b155 ]--- [ 23.050892][ T355] RIP: 0010:bpf_skb_cgroup_id+0x10f/0x190 [ 23.056406][ T355] Code: c7 a0 02 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 a0 5a 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 82 5a 0c fe 48 8b 1b 48 83 c3 68 [ 23.076022][ T355] RSP: 0018:ffff8881dc01f640 EFLAGS: 00010206 [ 23.081888][ T355] RAX: 0000000000000028 RBX: 0000000000000140 RCX: ffff8881dcfa5e80 [ 23.089691][ T355] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 [ 23.097487][ T355] RBP: ffff8881dc01f690 R08: ffffffff8387c046 R09: ffff8881dc01f760 [ 23.105320][ T355] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 23.113129][ T355] R13: fffffffabc8d2a54 R14: ffff8881dc05c012 R15: ffff8881dc05c2a0 [ 23.120948][ T355] FS: 0000555555cad380(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 23.129715][ T355] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.136102][ T355] CR2: 000000000191c258 CR3: 00000001dc421000 CR4: 00000000003406a0 [ 23.143940][ T355] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.151750][ T355] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.159559][ T355] Kernel panic - not syncing: Fatal exception [ 23.165766][ T355] Kernel Offset: disabled [ 23.169890][ T355] Rebooting in 86400 seconds..