./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3978009132 <...> Warning: Permanently added '10.128.0.143' (ED25519) to the list of known hosts. execve("./syz-executor3978009132", ["./syz-executor3978009132"], 0x7ffd88f36970 /* 10 vars */) = 0 brk(NULL) = 0x555556f30000 brk(0x555556f30d00) = 0x555556f30d00 arch_prctl(ARCH_SET_FS, 0x555556f30380) = 0 set_tid_address(0x555556f30650) = 355 set_robust_list(0x555556f30660, 24) = 0 rseq(0x555556f30ca0, 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-executor3978009132", 4096) = 28 getrandom("\xb9\x26\x26\xb3\x48\x77\x07\xc3", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556f30d00 brk(0x555556f51d00) = 0x555556f51d00 brk(0x555556f52000) = 0x555556f52000 mprotect(0x7f2a6fca0000, 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 [ 21.893854][ T23] audit: type=1400 audit(1695942085.619:66): avc: denied { execmem } for pid=355 comm="syz-executor397" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 21.914729][ T23] audit: type=1400 audit(1695942085.639:67): avc: denied { prog_load } for pid=355 comm="syz-executor397" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 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 [ 21.934053][ T23] audit: type=1400 audit(1695942085.659:68): avc: denied { prog_run } for pid=355 comm="syz-executor397" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 21.934298][ T355] kasan: CONFIG_KASAN_INLINE enabled [ 21.958072][ T355] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 21.966006][ T355] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 21.972727][ T355] CPU: 0 PID: 355 Comm: syz-executor397 Not tainted 5.4.249-syzkaller-00008-ga1b9dbe5628a #0 [ 21.982700][ T355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 [ 21.992605][ T355] RIP: 0010:bpf_skb_ancestor_cgroup_id+0x114/0x270 [ 21.998932][ T355] Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 ad a4 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 [ 22.018379][ T355] RSP: 0018:ffff8881dc1c7638 EFLAGS: 00010203 [ 22.024281][ T355] RAX: 0000000000000023 RBX: 0000000000000000 RCX: 0000000000000000 [ 22.033705][ T355] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000000011c [ 22.041516][ T355] RBP: 0000000000000080 R08: ffffffff8387517a R09: ffff8881dc1c7760 [ 22.049328][ T355] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 22.057139][ T355] R13: fffffffae5f52699 R14: 0000000087000000 R15: ffff8881de1b5012 [ 22.064954][ T355] FS: 0000555556f30380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 22.073718][ T355] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.080138][ T355] CR2: 0000000020000040 CR3: 00000001dc1c9000 CR4: 00000000003406b0 [ 22.087951][ T355] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.096107][ T355] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.103919][ T355] Call Trace: [ 22.107058][ T355] ? __die+0xb4/0x100 [ 22.110864][ T355] ? die+0x26/0x50 [ 22.114424][ T355] ? do_general_protection+0x266/0x3c0 [ 22.119718][ T355] ? do_trap+0x340/0x340 [ 22.123800][ T355] ? __kasan_kmalloc+0x1d9/0x210 [ 22.128574][ T355] ? kmem_cache_alloc+0xd9/0x250 [ 22.133345][ T355] ? build_skb+0x26/0x440 [ 22.137516][ T355] ? bpf_prog_test_run_skb+0x302/0xf00 [ 22.142807][ T355] ? __se_sys_bpf+0x2e37/0xbcb0 [ 22.147494][ T355] ? do_syscall_64+0xca/0x1c0 [ 22.152009][ T355] ? general_protection+0x28/0x30 [ 22.156870][ T355] ? bpf_skb_ancestor_cgroup_id+0xda/0x270 [ 22.162515][ T355] ? bpf_skb_ancestor_cgroup_id+0x114/0x270 [ 22.168239][ T355] ? bpf_skb_ancestor_cgroup_id+0xda/0x270 [ 22.173880][ T355] ? bpf_test_run+0x2ae/0x6c0 [ 22.178396][ T355] ? bpf_ctx_init+0x1a0/0x1a0 [ 22.182904][ T355] ? build_skb+0x259/0x440 [ 22.187157][ T355] ? bpf_prog_test_run_skb+0x73c/0xf00 [ 22.192457][ T355] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 22.198094][ T355] ? __bpf_prog_get+0x287/0x310 [ 22.202781][ T355] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 22.208422][ T355] ? __se_sys_bpf+0x2e37/0xbcb0 [ 22.213111][ T355] ? check_preemption_disabled+0x9f/0x320 [ 22.218660][ T355] ? debug_smp_processor_id+0x20/0x20 [ 22.223881][ T355] ? check_preemption_disabled+0x9f/0x320 [ 22.229426][ T355] ? check_preemption_disabled+0x9f/0x320 [ 22.234979][ T355] ? debug_smp_processor_id+0x20/0x20 [ 22.240186][ T355] ? debug_smp_processor_id+0x20/0x20 [ 22.245397][ T355] ? __x64_sys_bpf+0x80/0x80 [ 22.249824][ T355] ? switch_mm_irqs_off+0x6b5/0xab0 [ 22.254867][ T355] ? _raw_spin_unlock_irq+0x4a/0x60 [ 22.259890][ T355] ? finish_task_switch+0x130/0x590 [ 22.264926][ T355] ? __schedule+0xb0d/0x1320 [ 22.269355][ T355] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 22.274300][ T355] ? _raw_spin_lock_irqsave+0x210/0x210 [ 22.279678][ T355] ? cgroup_update_frozen+0x157/0xab0 [ 22.284976][ T355] ? cgroup_update_frozen+0x157/0xab0 [ 22.290184][ T355] ? cgroup_leave_frozen+0x13c/0x290 [ 22.295306][ T355] ? ptrace_stop+0x6ee/0xa30 [ 22.299729][ T355] ? _raw_spin_unlock_irq+0x4a/0x60 [ 22.304763][ T355] ? ptrace_notify+0x24c/0x350 [ 22.309362][ T355] ? do_notify_parent+0xa10/0xa10 [ 22.314225][ T355] ? check_preemption_disabled+0x153/0x320 [ 22.319865][ T355] ? syscall_trace_enter+0x650/0x940 [ 22.324989][ T355] ? do_syscall_64+0xca/0x1c0 [ 22.329501][ T355] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 22.335396][ T355] Modules linked in: [ 22.339191][ T355] ---[ end trace ecde0edae1d74121 ]--- [ 22.344468][ T355] RIP: 0010:bpf_skb_ancestor_cgroup_id+0x114/0x270 [ 22.350773][ T355] Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 ad a4 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 [ 22.370236][ T355] RSP: 0018:ffff8881dc1c7638 EFLAGS: 00010203 [ 22.376132][ T355] RAX: 0000000000000023 RBX: 0000000000000000 RCX: 0000000000000000 [ 22.383948][ T355] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000000011c [ 22.391728][ T355] RBP: 0000000000000080 R08: ffffffff8387517a R09: ffff8881dc1c7760 [ 22.399603][ T355] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 22.407381][ T355] R13: fffffffae5f52699 R14: 0000000087000000 R15: ffff8881de1b5012 [ 22.415195][ T355] FS: 0000555556f30380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 22.423963][ T355] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.430349][ T355] CR2: 0000000020000040 CR3: 00000001dc1c9000 CR4: 00000000003406b0 [ 22.438199][ T355] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.445997][ T355] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.453809][ T355] Kernel panic - not syncing: Fatal exception [ 22.459846][ T355] Kernel Offset: disabled [ 22.464229][ T355] Rebooting in 86400 seconds..