./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2972080835 <...> tclass=fifo_file permissive=1 [ 17.208779][ T23] audit: type=1400 audit(1687140398.880:64): avc: denied { rlimitinh } for pid=319 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 17.211379][ T23] audit: type=1400 audit(1687140398.880:65): avc: denied { siginh } for pid=319 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.1.60' (ECDSA) to the list of known hosts. execve("./syz-executor2972080835", ["./syz-executor2972080835"], 0x7ffcc5bff760 /* 10 vars */) = 0 brk(NULL) = 0x555556bec000 brk(0x555556becc40) = 0x555556becc40 arch_prctl(ARCH_SET_FS, 0x555556bec300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2972080835", 4096) = 28 brk(0x555556c0dc40) = 0x555556c0dc40 brk(0x555556c0e000) = 0x555556c0e000 mprotect(0x7f60babe0000, 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 [ 25.790367][ T23] audit: type=1400 audit(1687140407.470:66): avc: denied { execmem } for pid=359 comm="syz-executor297" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 25.811308][ T23] audit: type=1400 audit(1687140407.490:67): avc: denied { prog_load } for pid=359 comm="syz-executor297" 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_ACT, insn_cnt=14, insns=0x20001a40, license="syzkaller", 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}, 72) = 3 [ 25.830799][ T23] audit: type=1400 audit(1687140407.520:68): avc: denied { prog_run } for pid=359 comm="syz-executor297" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 25.831045][ T359] kasan: CONFIG_KASAN_INLINE enabled [ 25.854816][ T359] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 25.862745][ T359] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 25.869469][ T359] CPU: 1 PID: 359 Comm: syz-executor297 Not tainted 5.4.242-syzkaller-00010-g39a9b92e9828 #0 [ 25.879534][ T359] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 25.889519][ T359] RIP: 0010:bpf_skb_ancestor_cgroup_id+0x114/0x270 [ 25.895862][ T359] Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 8d e5 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 [ 25.915309][ T359] RSP: 0018:ffff8881dc7074b8 EFLAGS: 00010203 [ 25.921196][ T359] RAX: 0000000000000023 RBX: 0000000000000000 RCX: 0000000000000000 [ 25.929004][ T359] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000000011c [ 25.936811][ T359] RBP: 0000000000000080 R08: ffffffff8386fe5a R09: ffff8881dc707760 [ 25.944628][ T359] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 25.952433][ T359] R13: fffffff9fd7e08e5 R14: 0000000000000000 R15: ffff8881dc70e012 [ 25.960247][ T359] FS: 0000555556bec300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 25.969012][ T359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.975434][ T359] CR2: 0000000020002000 CR3: 00000001dc5e2000 CR4: 00000000003406a0 [ 25.983247][ T359] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.991055][ T359] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.998865][ T359] Call Trace: [ 26.002006][ T359] ? __kasan_kmalloc+0x171/0x210 [ 26.006765][ T359] ? kmem_cache_alloc+0xd9/0x250 [ 26.011540][ T359] ? build_skb+0x26/0x440 [ 26.015709][ T359] ? bpf_prog_test_run_skb+0x302/0xf00 [ 26.021000][ T359] ? __se_sys_bpf+0x2e37/0xbcb0 [ 26.025690][ T359] ? do_syscall_64+0xca/0x1c0 [ 26.030203][ T359] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 26.036116][ T359] ? ktime_get+0xf9/0x130 [ 26.040269][ T359] ? bpf_test_run+0x2ae/0x6c0 [ 26.044789][ T359] ? bpf_ctx_init+0x1a0/0x1a0 [ 26.049295][ T359] ? bpf_prog_test_run_skb+0x73c/0xf00 [ 26.054592][ T359] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 26.060239][ T359] ? __bpf_prog_get+0x287/0x310 [ 26.064918][ T359] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 26.070558][ T359] ? __se_sys_bpf+0x2e37/0xbcb0 [ 26.075251][ T359] ? check_preemption_disabled+0x9f/0x320 [ 26.080799][ T359] ? debug_smp_processor_id+0x20/0x20 [ 26.086011][ T359] ? check_preemption_disabled+0x9f/0x320 [ 26.091564][ T359] ? check_preemption_disabled+0x9f/0x320 [ 26.097127][ T359] ? debug_smp_processor_id+0x20/0x20 [ 26.102328][ T359] ? debug_smp_processor_id+0x20/0x20 [ 26.107532][ T359] ? __x64_sys_bpf+0x80/0x80 [ 26.111959][ T359] ? switch_mm_irqs_off+0x6b5/0xab0 [ 26.116998][ T359] ? _raw_spin_unlock_irq+0x4a/0x60 [ 26.122026][ T359] ? finish_task_switch+0x130/0x590 [ 26.127062][ T359] ? __schedule+0xb0d/0x1320 [ 26.131574][ T359] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 26.136531][ T359] ? _raw_spin_lock_irqsave+0x210/0x210 [ 26.141907][ T359] ? cgroup_update_frozen+0x157/0xab0 [ 26.147109][ T359] ? cgroup_update_frozen+0x157/0xab0 [ 26.152319][ T359] ? cgroup_leave_frozen+0x13c/0x290 [ 26.157438][ T359] ? ptrace_stop+0x6ee/0xa30 [ 26.162474][ T359] ? _raw_spin_unlock_irq+0x4a/0x60 [ 26.167504][ T359] ? ptrace_notify+0x24c/0x350 [ 26.172104][ T359] ? do_notify_parent+0xa10/0xa10 [ 26.177061][ T359] ? check_preemption_disabled+0x153/0x320 [ 26.182695][ T359] ? syscall_trace_enter+0x650/0x940 [ 26.187814][ T359] ? do_syscall_64+0xca/0x1c0 [ 26.192329][ T359] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 26.198229][ T359] Modules linked in: [ 26.202004][ T359] ---[ end trace ff7ba8d24eccf9b3 ]--- [ 26.207265][ T359] RIP: 0010:bpf_skb_ancestor_cgroup_id+0x114/0x270 [ 26.213643][ T359] Code: 02 00 00 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 8d e5 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 [ 26.233060][ T359] RSP: 0018:ffff8881dc7074b8 EFLAGS: 00010203 [ 26.238936][ T359] RAX: 0000000000000023 RBX: 0000000000000000 RCX: 0000000000000000 [ 26.246770][ T359] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000000011c [ 26.254579][ T359] RBP: 0000000000000080 R08: ffffffff8386fe5a R09: ffff8881dc707760 [ 26.262396][ T359] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 26.270187][ T359] R13: fffffff9fd7e08e5 R14: 0000000000000000 R15: ffff8881dc70e012 [ 26.278021][ T359] FS: 0000555556bec300(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000 [ 26.286776][ T359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.293198][ T359] CR2: 0000000020002000 CR3: 00000001dc5e2000 CR4: 00000000003406a0 [ 26.300994][ T359] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.308926][ T359] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.316814][ T359] Kernel panic - not syncing: Fatal exception [ 26.322853][ T359] Kernel Offset: disabled [ 26.326976][ T359] Rebooting in 86400 seconds..