./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3640802011 <...> [ 4.911451][ T23] audit: type=1400 audit(1687570196.360:10): avc: denied { getattr } for pid=144 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=9331 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 5.092513][ T161] udevd[161]: starting version 3.2.11 [ 5.121666][ T162] udevd[162]: starting eudev-3.2.11 [ 6.628749][ T140] rcS (140) used greatest stack depth: 22776 bytes left [ 14.548179][ T23] kauditd_printk_skb: 50 callbacks suppressed [ 14.548188][ T23] audit: type=1400 audit(1687570206.020:61): avc: denied { transition } for pid=287 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.559725][ T23] audit: type=1400 audit(1687570206.030:62): avc: denied { noatsecure } for pid=287 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.562680][ T23] audit: type=1400 audit(1687570206.030:63): avc: denied { write } for pid=287 comm="sh" path="pipe:[9735]" dev="pipefs" ino=9735 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 14.565766][ T23] audit: type=1400 audit(1687570206.030:64): avc: denied { rlimitinh } for pid=287 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 14.568386][ T23] audit: type=1400 audit(1687570206.030:65): avc: denied { siginh } for pid=287 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.1.44' (ECDSA) to the list of known hosts. execve("./syz-executor3640802011", ["./syz-executor3640802011"], 0x7ffe376bffd0 /* 10 vars */) = 0 brk(NULL) = 0x555556339000 brk(0x555556339c40) = 0x555556339c40 arch_prctl(ARCH_SET_FS, 0x555556339300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3640802011", 4096) = 28 brk(0x55555635ac40) = 0x55555635ac40 brk(0x55555635b000) = 0x55555635b000 mprotect(0x7fdb6f4b0000, 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 [ 24.790733][ T23] audit: type=1400 audit(1687570216.270:66): avc: denied { execmem } for pid=358 comm="syz-executor364" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 24.810188][ T23] audit: type=1400 audit(1687570216.270:67): avc: denied { prog_load } for pid=358 comm="syz-executor364" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 24.811222][ T358] kasan: CONFIG_KASAN_INLINE enabled [ 24.829321][ T23] audit: type=1400 audit(1687570216.290:68): avc: denied { prog_run } for pid=358 comm="syz-executor364" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 24.834436][ T358] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.834448][ T358] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 24.834460][ T358] CPU: 0 PID: 358 Comm: syz-executor364 Not tainted 5.4.242-syzkaller-00014-ged558a4e054c #0 [ 24.834465][ T358] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 24.834483][ T358] RIP: 0010:bpf_skb_cgroup_id+0x10f/0x190 [ 24.834494][ T358] 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 [ 24.834501][ T358] RSP: 0018:ffff8881dc757640 EFLAGS: 00010206 [ 24.834510][ T358] RAX: 0000000000000028 RBX: 0000000000000140 RCX: ffff8881de198fc0 [ 24.834516][ T358] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 [ 24.834525][ T358] RBP: ffff8881dc757690 R08: ffffffff8386fd06 R09: ffff8881dc757760 [ 24.834532][ T358] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 24.834541][ T358] R13: fffffffa3a38f5ef R14: ffff8881dd809812 R15: ffff8881dd809aa0 [ 24.834550][ T358] FS: 0000555556339300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 24.834557][ T358] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.834564][ T358] CR2: 0000000001db8258 CR3: 00000001dcafb000 CR4: 00000000003406b0 [ 24.834574][ T358] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.834580][ T358] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.834582][ T358] Call Trace: [ 24.834598][ T358] ? bpf_test_run+0x2ae/0x6c0 [ 24.834611][ T358] ? bpf_ctx_init+0x1a0/0x1a0 [ 24.834622][ T358] ? build_skb+0x259/0x440 [ 24.834633][ T358] ? bpf_prog_test_run_skb+0x73c/0xf00 [ 24.834651][ T358] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 25.024187][ T358] ? __bpf_prog_get+0x287/0x310 [ 25.028862][ T358] ? __bpf_trace_bpf_test_finish+0x20/0x20 [ 25.034505][ T358] ? __se_sys_bpf+0x2e37/0xbcb0 [ 25.039193][ T358] ? check_preemption_disabled+0x9f/0x320 [ 25.044747][ T358] ? debug_smp_processor_id+0x20/0x20 [ 25.049959][ T358] ? check_preemption_disabled+0x9f/0x320 [ 25.055507][ T358] ? check_preemption_disabled+0x9f/0x320 [ 25.061060][ T358] ? debug_smp_processor_id+0x20/0x20 [ 25.066269][ T358] ? debug_smp_processor_id+0x20/0x20 [ 25.071486][ T358] ? __x64_sys_bpf+0x80/0x80 [ 25.075904][ T358] ? switch_mm_irqs_off+0x6b5/0xab0 [ 25.080939][ T358] ? _raw_spin_unlock_irq+0x4a/0x60 [ 25.085971][ T358] ? finish_task_switch+0x130/0x590 [ 25.091008][ T358] ? __schedule+0xb0d/0x1320 [ 25.095433][ T358] ? _raw_spin_lock_irq+0xa5/0x1b0 [ 25.100382][ T358] ? _raw_spin_lock_irqsave+0x210/0x210 [ 25.105759][ T358] ? cgroup_update_frozen+0x157/0xab0 [ 25.110968][ T358] ? cgroup_update_frozen+0x157/0xab0 [ 25.116177][ T358] ? cgroup_leave_frozen+0x13c/0x290 [ 25.121300][ T358] ? ptrace_stop+0x6ee/0xa30 [ 25.125724][ T358] ? _raw_spin_unlock_irq+0x4a/0x60 [ 25.132234][ T358] ? ptrace_notify+0x24c/0x350 [ 25.136845][ T358] ? do_notify_parent+0xa10/0xa10 [ 25.141698][ T358] ? check_preemption_disabled+0x153/0x320 [ 25.147345][ T358] ? syscall_trace_enter+0x650/0x940 [ 25.152469][ T358] ? do_syscall_64+0xca/0x1c0 [ 25.156973][ T358] ? entry_SYSCALL_64_after_hwframe+0x5c/0xc1 [ 25.162868][ T358] Modules linked in: [ 25.166692][ T358] ---[ end trace 76e2a3928e6de3a0 ]--- [ 25.171947][ T358] RIP: 0010:bpf_skb_cgroup_id+0x10f/0x190 [ 25.177490][ T358] 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 [ 25.197008][ T358] RSP: 0018:ffff8881dc757640 EFLAGS: 00010206 [ 25.202908][ T358] RAX: 0000000000000028 RBX: 0000000000000140 RCX: ffff8881de198fc0 [ 25.210822][ T358] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 [ 25.218604][ T358] RBP: ffff8881dc757690 R08: ffffffff8386fd06 R09: ffff8881dc757760 [ 25.226452][ T358] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 25.234259][ T358] R13: fffffffa3a38f5ef R14: ffff8881dd809812 R15: ffff8881dd809aa0 [ 25.242061][ T358] FS: 0000555556339300(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 [ 25.250910][ T358] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.257298][ T358] CR2: 0000000001db8258 CR3: 00000001dcafb000 CR4: 00000000003406b0 [ 25.265156][ T358] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.272957][ T358] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.280762][ T358] Kernel panic - not syncing: Fatal exception [ 25.286857][ T358] Kernel Offset: disabled [ 25.290981][ T358] Rebooting in 86400 seconds..