syzkaller syzkaller login: [ 28.470289][ T3530] cgroup: Unknown subsys name 'net' [ 28.585463][ T3530] cgroup: Unknown subsys name 'rlimit' [ 29.592245][ T3530] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 30.808666][ T3549] veth0_vlan: entered promiscuous mode [ 31.016551][ T2454] veth0_vlan: left promiscuous mode [ 31.736082][ T3767] veth0_vlan: entered promiscuous mode [ 31.871342][ T3530] syz-executor (3530) used greatest stack depth: 10952 bytes left [ 31.966614][ T2591] veth0_vlan: left promiscuous mode Warning: Permanently added '10.128.10.56' (ED25519) to the list of known hosts. 2025/01/06 17:54:19 ignoring optional flag "sandboxArg"="0" 2025/01/06 17:54:20 parsed 1 programs [ 51.129981][ T3960] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 52.426404][ T3994] veth0_vlan: entered promiscuous mode [ 52.616816][ T2454] veth0_vlan: left promiscuous mode 2025/01/06 17:54:22 executed programs: 0 [ 53.261873][ T4195] veth0_vlan: entered promiscuous mode [ 53.398693][ T4371] BUG: kernel NULL pointer dereference, address: 00000000000000a0 [ 53.406527][ T4371] #PF: supervisor read access in kernel mode [ 53.412510][ T4371] #PF: error_code(0x0000) - not-present page [ 53.418565][ T4371] PGD 8000000111fdf067 P4D 8000000111fdf067 PUD 111c0e067 PMD 0 [ 53.426257][ T4371] Oops: Oops: 0000 [#1] PREEMPT SMP PTI [ 53.431773][ T4371] CPU: 1 UID: 0 PID: 4371 Comm: syz.2.16 Not tainted 6.11.0-rc2-syzkaller #0 [ 53.440492][ T4371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 53.450772][ T4371] RIP: 0010:vsock_connectible_has_data+0x15/0x40 [ 53.457189][ T4371] Code: 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 83 bf bc 03 00 00 05 48 8b 87 f8 04 00 00 75 13 <4c> 8b 98 a0 00 00 00 41 ff d3 66 90 89 c0 c3 cc cc cc cc 4c 8b 58 [ 53.477036][ T4371] RSP: 0018:ffffc90001a1bb30 EFLAGS: 00010246 [ 53.483066][ T4371] RAX: 0000000000000000 RBX: ffff888172380000 RCX: 0000000000000001 [ 53.491004][ T4371] RDX: a192f5592f7165c9 RSI: ffffffff83d0df7b RDI: ffff888172380000 [ 53.498948][ T4371] RBP: ffff88817cf29000 R08: 0000000000000000 R09: 0000000000000000 [ 53.506886][ T4371] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90001a1be08 [ 53.514837][ T4371] R13: ffffffff82de9ef9 R14: ffff88817cf29000 R15: 0000000000000000 [ 53.522776][ T4371] FS: 00007f3addf886c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 [ 53.531672][ T4371] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.538578][ T4371] CR2: 00000000000000a0 CR3: 000000010238e000 CR4: 00000000003506f0 [ 53.546525][ T4371] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.554466][ T4371] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.562416][ T4371] Call Trace: [ 53.565668][ T4371] [ 53.568592][ T4371] ? __die_body+0x5f/0xb0 [ 53.572895][ T4371] ? page_fault_oops+0x316/0x430 [ 53.577797][ T4371] ? exc_page_fault+0x556/0x6f0 [ 53.582628][ T4371] ? asm_exc_page_fault+0x26/0x30 [ 53.587616][ T4371] ? vsock_bpf_recvmsg+0x39/0x4c0 [ 53.592641][ T4371] ? vsock_connectible_has_data+0x15/0x40 [ 53.598327][ T4371] vsock_bpf_recvmsg+0xe2/0x4c0 [ 53.603207][ T4371] ? aa_sk_perm+0x146/0x1c0 [ 53.607728][ T4371] sock_recvmsg+0x9e/0xc0 [ 53.612032][ T4371] ____sys_recvmsg+0x112/0x1f0 [ 53.616859][ T4371] ___sys_recvmsg+0x202/0x2c0 [ 53.621497][ T4371] do_recvmmsg+0x19c/0x350 [ 53.625962][ T4371] ? do_futex+0x16c/0x1f0 [ 53.630253][ T4371] __x64_sys_recvmmsg+0xad/0xe0 [ 53.635159][ T4371] do_syscall_64+0x8d/0x190 [ 53.639646][ T4371] ? clear_bhb_loop+0x35/0x90 [ 53.644320][ T4371] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 53.650273][ T4371] RIP: 0033:0x7f3add185d29 [ 53.654654][ T4371] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 [ 53.674230][ T4371] RSP: 002b:00007f3addf88038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b [ 53.682611][ T4371] RAX: ffffffffffffffda RBX: 00007f3add375fa0 RCX: 00007f3add185d29 [ 53.690555][ T4371] RDX: 0000000000000001 RSI: 00000000200061c0 RDI: 0000000000000003 [ 53.698505][ T4371] RBP: 00007f3add201b08 R08: 0000000000000000 R09: 0000000000000000 [ 53.706443][ T4371] R10: 0000000000002000 R11: 0000000000000246 R12: 0000000000000000 [ 53.714382][ T4371] R13: 0000000000000000 R14: 00007f3add375fa0 R15: 00007ffccf776998 [ 53.722338][ T4371] [ 53.725329][ T4371] Modules linked in: [ 53.729206][ T4371] CR2: 00000000000000a0 [ 53.733326][ T4371] ---[ end trace 0000000000000000 ]--- [ 53.738846][ T4371] RIP: 0010:vsock_connectible_has_data+0x15/0x40 [ 53.745426][ T4371] Code: 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 83 bf bc 03 00 00 05 48 8b 87 f8 04 00 00 75 13 <4c> 8b 98 a0 00 00 00 41 ff d3 66 90 89 c0 c3 cc cc cc cc 4c 8b 58 [ 53.765272][ T4371] RSP: 0018:ffffc90001a1bb30 EFLAGS: 00010246 [ 53.771312][ T4371] RAX: 0000000000000000 RBX: ffff888172380000 RCX: 0000000000000001 [ 53.779531][ T4371] RDX: a192f5592f7165c9 RSI: ffffffff83d0df7b RDI: ffff888172380000 [ 53.787469][ T4371] RBP: ffff88817cf29000 R08: 0000000000000000 R09: 0000000000000000 [ 53.795492][ T4371] R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90001a1be08 [ 53.803431][ T4371] R13: ffffffff82de9ef9 R14: ffff88817cf29000 R15: 0000000000000000 [ 53.811367][ T4371] FS: 00007f3addf886c0(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 [ 53.820257][ T4371] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 53.826900][ T4371] CR2: 00000000000000a0 CR3: 000000010238e000 CR4: 00000000003506f0 [ 53.834849][ T4371] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.842804][ T4371] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.850833][ T4371] Kernel panic - not syncing: Fatal exception [ 53.857116][ T4371] Kernel Offset: disabled [ 53.861418][ T4371] Rebooting in 86400 seconds..