Warning: Permanently added '10.128.0.241' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 75.196180][ T8406] general protection fault, probably for non-canonical address 0xdffffc0000000024: 0000 [#1] PREEMPT SMP KASAN [ 75.207992][ T8406] KASAN: null-ptr-deref in range [0x0000000000000120-0x0000000000000127] [ 75.216402][ T8406] CPU: 0 PID: 8406 Comm: syz-executor074 Not tainted 5.14.0-syzkaller #0 [ 75.224992][ T8406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 75.235124][ T8406] RIP: 0010:bpf_skb_ancestor_cgroup_id+0x152/0x300 [ 75.241720][ T8406] Code: 03 80 3c 02 00 0f 85 9f 01 00 00 48 8b 9b 58 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 20 01 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 48 01 00 00 8b ab 20 01 00 00 [ 75.261324][ T8406] RSP: 0018:ffffc9000101f828 EFLAGS: 00010206 [ 75.267374][ T8406] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 75.275791][ T8406] RDX: 0000000000000024 RSI: ffffffff87291cee RDI: 0000000000000120 [ 75.283758][ T8406] RBP: 0000000000000080 R08: 0000000000000000 R09: 0000000000000007 [ 75.291720][ T8406] R10: ffffffff87291cd1 R11: 000000000000001f R12: fffffffffffffe00 [ 75.299774][ T8406] R13: 00000000fffffe00 R14: ffffc9000101fc30 R15: ffffc90000e48048 [ 75.307824][ T8406] FS: 0000000001234300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 75.316749][ T8406] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.323327][ T8406] CR2: 0000000020000200 CR3: 000000007193e000 CR4: 00000000001506f0 [ 75.331556][ T8406] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.339606][ T8406] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.347577][ T8406] Call Trace: [ 75.350873][ T8406] bpf_prog_dcdd7aeecda69f3f+0x54/0x690 [ 75.356425][ T8406] ? find_held_lock+0x2d/0x110 [ 75.361290][ T8406] ? bpf_test_timer_enter+0xa0/0x160 [ 75.366575][ T8406] ? lock_downgrade+0x6e0/0x6e0 [ 75.371465][ T8406] ? ktime_get+0x38a/0x470 [ 75.375898][ T8406] ? lockdep_hardirqs_on+0x79/0x100 [ 75.381269][ T8406] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 75.386991][ T8406] ? ktime_get+0x30b/0x470 [ 75.391407][ T8406] ? bpf_test_timer_enter+0xa0/0x160 [ 75.396712][ T8406] bpf_test_run+0x381/0xa30 [ 75.401389][ T8406] ? bpf_test_timer_continue+0x420/0x420 [ 75.407020][ T8406] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 75.413272][ T8406] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 75.419726][ T8406] ? __phys_addr+0xc4/0x140 [ 75.424242][ T8406] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 75.430584][ T8406] ? eth_type_trans+0x29e/0x640 [ 75.435473][ T8406] ? __build_skb+0x50/0x60 [ 75.439894][ T8406] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 75.446182][ T8406] bpf_prog_test_run_skb+0xac5/0x1d20 [ 75.451563][ T8406] ? bpf_prog_test_run_raw_tp+0x630/0x630 [ 75.457281][ T8406] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 75.463614][ T8406] ? __fget_light+0x215/0x280 [ 75.468287][ T8406] ? __sys_bpf+0x2094/0x5df0 [ 75.472961][ T8406] ? bpf_prog_test_run_raw_tp+0x630/0x630 [ 75.478691][ T8406] __sys_bpf+0x2137/0x5df0 [ 75.483110][ T8406] ? bpf_link_get_from_fd+0x110/0x110 [ 75.488570][ T8406] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 75.494548][ T8406] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 75.500527][ T8406] ? find_held_lock+0x2d/0x110 [ 75.505305][ T8406] ? trace_hardirqs_on+0x38/0x1c0 [ 75.510329][ T8406] __x64_sys_bpf+0x75/0xb0 [ 75.514748][ T8406] ? syscall_enter_from_user_mode+0x21/0x70 [ 75.520639][ T8406] do_syscall_64+0x35/0xb0 [ 75.525179][ T8406] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 75.531070][ T8406] RIP: 0033:0x43f059 [ 75.535043][ T8406] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 75.554641][ T8406] RSP: 002b:00007ffc82a88608 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 75.563047][ T8406] RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043f059 [ 75.571123][ T8406] RDX: 0000000000000040 RSI: 0000000020000280 RDI: 000000000000000a [ 75.579084][ T8406] RBP: 0000000000403040 R08: 0000000000000000 R09: 0000000000400488 [ 75.587045][ T8406] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004030d0 [ 75.595019][ T8406] R13: 0000000000000000 R14: 00000000004ad018 R15: 0000000000400488 [ 75.603424][ T8406] Modules linked in: [ 75.608913][ T8406] ---[ end trace 55d65f18b4ef47bb ]--- [ 75.614422][ T8406] RIP: 0010:bpf_skb_ancestor_cgroup_id+0x152/0x300 [ 75.621609][ T8406] Code: 03 80 3c 02 00 0f 85 9f 01 00 00 48 8b 9b 58 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 20 01 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 48 01 00 00 8b ab 20 01 00 00 [ 75.644317][ T8406] RSP: 0018:ffffc9000101f828 EFLAGS: 00010206 [ 75.650509][ T8406] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 75.658826][ T8406] RDX: 0000000000000024 RSI: ffffffff87291cee RDI: 0000000000000120 [ 75.667300][ T8406] RBP: 0000000000000080 R08: 0000000000000000 R09: 0000000000000007 [ 75.675644][ T8406] R10: ffffffff87291cd1 R11: 000000000000001f R12: fffffffffffffe00 [ 75.683883][ T8406] R13: 00000000fffffe00 R14: ffffc9000101fc30 R15: ffffc90000e48048 [ 75.692094][ T8406] FS: 0000000001234300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 75.701259][ T8406] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.707833][ T8406] CR2: 00007fb37a158740 CR3: 000000007193e000 CR4: 00000000001506f0 [ 75.716157][ T8406] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.724489][ T8406] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 75.732847][ T8406] Kernel panic - not syncing: Fatal exception [ 75.739182][ T8406] Kernel Offset: disabled [ 75.743490][ T8406] Rebooting in 86400 seconds..