Warning: Permanently added '10.128.0.27' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 59.209606][ T7050] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 59.221478][ T7050] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 59.229866][ T7050] CPU: 1 PID: 7050 Comm: syz-executor539 Not tainted 5.7.0-rc2-syzkaller #0 [ 59.238517][ T7050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.249005][ T7050] RIP: 0010:fq_codel_enqueue+0xa75/0x11b0 [ 59.254727][ T7050] Code: 28 fb 44 3b 64 24 70 0f 83 dd 00 00 00 e8 b3 58 28 fb 48 8b 44 24 40 80 38 00 0f 85 5a 05 00 00 49 8b 06 48 89 c2 48 c1 ea 03 <42> 80 3c 2a 00 0f 85 52 05 00 00 48 8b 10 49 89 16 48 89 c2 48 c1 [ 59.274450][ T7050] RSP: 0018:ffffc900010777f0 EFLAGS: 00010246 [ 59.280489][ T7050] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc900010779d0 [ 59.288553][ T7050] RDX: 0000000000000000 RSI: ffffffff864ad5fd RDI: 0000000000000000 [ 59.296503][ T7050] RBP: ffffc90001077900 R08: ffff8880957f2400 R09: fffffbfff185cd54 [ 59.304445][ T7050] R10: ffffffff8c2e6a9f R11: fffffbfff185cd53 R12: 0000000000000400 [ 59.312455][ T7050] R13: dffffc0000000000 R14: ffff888084c20000 R15: ffffc900010779d0 [ 59.320426][ T7050] FS: 0000000000741880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 59.329347][ T7050] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.335918][ T7050] CR2: 0000000020000080 CR3: 00000000a7fdc000 CR4: 00000000001406e0 [ 59.343865][ T7050] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.351905][ T7050] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.359936][ T7050] Call Trace: [ 59.363775][ T7050] ? drop_func+0x60/0x60 [ 59.367993][ T7050] ? rwlock_bug.part.0+0x90/0x90 [ 59.372990][ T7050] ? rcu_read_lock_bh_held+0x5a/0xb0 [ 59.378248][ T7050] ? rcu_read_lock_sched_held+0xd0/0xd0 [ 59.383798][ T7050] __dev_queue_xmit+0x154a/0x30a0 [ 59.388814][ T7050] ? netdev_core_pick_tx+0x2e0/0x2e0 [ 59.394071][ T7050] ? _copy_from_iter+0x300/0xb60 [ 59.399084][ T7050] ? __phys_addr_symbol+0x2c/0x70 [ 59.404138][ T7050] ? __check_object_size+0x171/0x437 [ 59.409930][ T7050] ? packet_parse_headers.isra.0+0x117/0x470 [ 59.415887][ T7050] ? __unregister_prot_hook+0x320/0x320 [ 59.421527][ T7050] ? packet_sendmsg+0x23cc/0x5ce0 [ 59.426525][ T7050] packet_sendmsg+0x23cc/0x5ce0 [ 59.431353][ T7050] ? mark_held_locks+0xe0/0xe0 [ 59.436086][ T7050] ? aa_label_sk_perm+0x89/0xe0 [ 59.440910][ T7050] ? aa_sk_perm+0x319/0xab0 [ 59.446609][ T7050] ? packet_notifier+0x860/0x860 [ 59.451517][ T7050] ? aa_af_perm+0x260/0x260 [ 59.455991][ T7050] ? packet_do_bind+0x452/0xc00 [ 59.460813][ T7050] ? packet_notifier+0x860/0x860 [ 59.465721][ T7050] sock_sendmsg+0xcf/0x120 [ 59.470114][ T7050] __sys_sendto+0x220/0x330 [ 59.474598][ T7050] ? __ia32_sys_getpeername+0xb0/0xb0 [ 59.480309][ T7050] ? packet_do_bind+0x452/0xc00 [ 59.485132][ T7050] ? __sys_bind+0x13e/0x250 [ 59.489604][ T7050] ? __ia32_sys_socketpair+0xf0/0xf0 [ 59.494856][ T7050] ? sock_create_kern+0x40/0x40 [ 59.499682][ T7050] ? fpregs_mark_activate+0x320/0x320 [ 59.505806][ T7050] __x64_sys_sendto+0xdd/0x1b0 [ 59.510566][ T7050] ? lockdep_hardirqs_on+0x463/0x620 [ 59.515824][ T7050] do_syscall_64+0xf6/0x7d0 [ 59.520312][ T7050] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 59.526183][ T7050] RIP: 0033:0x4404e9 [ 59.530070][ T7050] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 59.549883][ T7050] RSP: 002b:00007ffdb9fc2248 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 59.558279][ T7050] RAX: ffffffffffffffda RBX: 00000000004a167e RCX: 00000000004404e9 [ 59.566233][ T7050] RDX: 00000000000001e8 RSI: 0000000020000480 RDI: 0000000000000005 [ 59.574179][ T7050] RBP: 54c6c2ff093a6d32 R08: 0000000000000000 R09: 0000000000000000 [ 59.582133][ T7050] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000010000 [ 59.590162][ T7050] R13: 0000000000401e00 R14: 0000000000000000 R15: 0000000000000000 [ 59.598118][ T7050] Modules linked in: [ 59.602519][ T7050] ---[ end trace ede480bbaa7c1ac8 ]--- [ 59.608003][ T7050] RIP: 0010:fq_codel_enqueue+0xa75/0x11b0 [ 59.613719][ T7050] Code: 28 fb 44 3b 64 24 70 0f 83 dd 00 00 00 e8 b3 58 28 fb 48 8b 44 24 40 80 38 00 0f 85 5a 05 00 00 49 8b 06 48 89 c2 48 c1 ea 03 <42> 80 3c 2a 00 0f 85 52 05 00 00 48 8b 10 49 89 16 48 89 c2 48 c1 [ 59.633371][ T7050] RSP: 0018:ffffc900010777f0 EFLAGS: 00010246 [ 59.639473][ T7050] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffc900010779d0 [ 59.647443][ T7050] RDX: 0000000000000000 RSI: ffffffff864ad5fd RDI: 0000000000000000 [ 59.655477][ T7050] RBP: ffffc90001077900 R08: ffff8880957f2400 R09: fffffbfff185cd54 [ 59.663507][ T7050] R10: ffffffff8c2e6a9f R11: fffffbfff185cd53 R12: 0000000000000400 [ 59.671527][ T7050] R13: dffffc0000000000 R14: ffff888084c20000 R15: ffffc900010779d0 [ 59.679547][ T7050] FS: 0000000000741880(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 [ 59.688524][ T7050] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.695099][ T7050] CR2: 0000000020000080 CR3: 00000000a7fdc000 CR4: 00000000001406e0 [ 59.703298][ T7050] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.711316][ T7050] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.719326][ T7050] Kernel panic - not syncing: Fatal exception in interrupt [ 59.737656][ T7050] Kernel Offset: disabled [ 59.741976][ T7050] Rebooting in 86400 seconds..