[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.19' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 50.351392][ T8376] netlink: 'syz-executor881': attribute type 1 has an invalid length. [ 50.525201][ T8376] 8021q: adding VLAN 0 to HW filter on device bond1 [ 50.659639][ T8376] [ 50.662590][ T8376] ============================= [ 50.667441][ T8376] WARNING: suspicious RCU usage [ 50.689774][ T8376] 5.12.0-rc5-syzkaller #0 Not tainted [ 50.695173][ T8376] ----------------------------- [ 50.729139][ T8376] drivers/net/bonding/bond_main.c:411 suspicious rcu_dereference_check() usage! [ 50.738668][ T8376] [ 50.738668][ T8376] other info that might help us debug this: [ 50.738668][ T8376] [ 50.751334][ T8376] [ 50.751334][ T8376] rcu_scheduler_active = 2, debug_locks = 1 [ 50.760461][ T8376] 1 lock held by syz-executor881/8376: [ 50.765929][ T8376] #0: ffffffff8d6f1968 (&net->xfrm.xfrm_cfg_mutex){+.+.}-{3:3}, at: xfrm_netlink_rcv+0x61/0x80 [ 50.776819][ T8376] [ 50.776819][ T8376] stack backtrace: [ 50.782803][ T8376] CPU: 0 PID: 8376 Comm: syz-executor881 Not tainted 5.12.0-rc5-syzkaller #0 [ 50.791576][ T8376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.801623][ T8376] Call Trace: [ 50.804897][ T8376] dump_stack+0x176/0x24e [ 50.809227][ T8376] bond_ipsec_add_sa+0xe9/0x1f0 [ 50.814076][ T8376] xfrm_dev_state_add+0x419/0x6c0 [ 50.819084][ T8376] xfrm_add_sa+0x2a74/0x3ab0 [ 50.823663][ T8376] ? __nla_parse+0x3c/0x50 [ 50.828064][ T8376] xfrm_user_rcv_msg+0x609/0x800 [ 50.833001][ T8376] netlink_rcv_skb+0x190/0x3a0 [ 50.837744][ T8376] ? xfrm_netlink_rcv+0x80/0x80 [ 50.842579][ T8376] xfrm_netlink_rcv+0x70/0x80 [ 50.847252][ T8376] netlink_unicast+0x786/0x940 [ 50.852003][ T8376] netlink_sendmsg+0x9ae/0xd50 [ 50.856753][ T8376] ? netlink_getsockopt+0xa50/0xa50 [ 50.861930][ T8376] ____sys_sendmsg+0x519/0x800 [ 50.866682][ T8376] ? import_iovec+0xe6/0x120 [ 50.871255][ T8376] __sys_sendmsg+0x2bf/0x370 [ 50.875848][ T8376] ? __context_tracking_exit+0x7a/0xd0 [ 50.881293][ T8376] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 50.887273][ T8376] ? lockdep_hardirqs_on+0x8d/0x130 [ 50.892454][ T8376] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 50.898414][ T8376] do_syscall_64+0x2d/0x70 [ 50.902811][ T8376] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 50.908684][ T8376] RIP: 0033:0x43f0b9 [ 50.912557][ T8376] 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 [ 50.932183][ T8376] RSP: 002b:00007ffe93544498 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 50.940583][ T8376] RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043f0b9 [ 50.948534][ T8376] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000004 [ 50.956484][ T8376] RBP: 00000000004030a0 R08: 0000000000400488 R09: 0000000000400488 [ 50.964436][ T8376] R10: 0000000000400488 R11: 0000000000000246 R12: 0000000000403130 [ 50.972417][ T8376] R13: 0000000000000000 R14: 00000000004ac018 R15: 0000000000400488 [ 50.982517][ T8376] stack segment: 0000 [#1] PREEMPT SMP KASAN [ 50.988507][ T8376] CPU: 0 PID: 8376 Comm: syz-executor881 Not tainted 5.12.0-rc5-syzkaller #0 [ 50.997275][ T8376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.007309][ T8376] RIP: 0010:bond_ipsec_add_sa+0xf3/0x1f0 [ 51.012924][ T8376] Code: fc c6 05 fb 21 d4 08 01 48 c7 c7 e7 4f 78 8b be 9b 01 00 00 48 c7 c2 60 dc 41 8a e8 b7 82 8f fc 4c 89 e5 48 c1 ed 03 4d 89 ee <42> 80 7c 2d 00 00 74 08 4c 89 e7 e8 dd 7d ef fc 4d 8b 2c 24 49 8d [ 51.032607][ T8376] RSP: 0018:ffffc90000edf770 EFLAGS: 00010246 [ 51.038665][ T8376] RAX: 7bf6ae087f8d7000 RBX: 0000000000000000 RCX: ffff888029570000 [ 51.046613][ T8376] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 51.054561][ T8376] RBP: 0000000000000000 R08: ffffffff83f4a5d7 R09: fffffbfff1f26eca [ 51.062513][ T8376] R10: fffffbfff1f26eca R11: 0000000000000000 R12: 0000000000000000 [ 51.070461][ T8376] R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff88801407c000 [ 51.078412][ T8376] FS: 00000000018d6300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 51.087324][ T8376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.093896][ T8376] CR2: 00007fff2cb51ff8 CR3: 0000000025e88000 CR4: 00000000001506f0 [ 51.101860][ T8376] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.109811][ T8376] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.117792][ T8376] Call Trace: [ 51.121090][ T8376] xfrm_dev_state_add+0x419/0x6c0 [ 51.126098][ T8376] xfrm_add_sa+0x2a74/0x3ab0 [ 51.130680][ T8376] ? __nla_parse+0x3c/0x50 [ 51.135075][ T8376] xfrm_user_rcv_msg+0x609/0x800 [ 51.139994][ T8376] netlink_rcv_skb+0x190/0x3a0 [ 51.144737][ T8376] ? xfrm_netlink_rcv+0x80/0x80 [ 51.149566][ T8376] xfrm_netlink_rcv+0x70/0x80 [ 51.154220][ T8376] netlink_unicast+0x786/0x940 [ 51.158966][ T8376] netlink_sendmsg+0x9ae/0xd50 [ 51.163719][ T8376] ? netlink_getsockopt+0xa50/0xa50 [ 51.168897][ T8376] ____sys_sendmsg+0x519/0x800 [ 51.173658][ T8376] ? import_iovec+0xe6/0x120 [ 51.178233][ T8376] __sys_sendmsg+0x2bf/0x370 [ 51.182804][ T8376] ? __context_tracking_exit+0x7a/0xd0 [ 51.188242][ T8376] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 51.194216][ T8376] ? lockdep_hardirqs_on+0x8d/0x130 [ 51.199430][ T8376] ? syscall_enter_from_user_mode+0x2e/0x1c0 [ 51.205387][ T8376] do_syscall_64+0x2d/0x70 [ 51.209781][ T8376] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 51.215671][ T8376] RIP: 0033:0x43f0b9 [ 51.219541][ T8376] 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 [ 51.239139][ T8376] RSP: 002b:00007ffe93544498 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 51.247550][ T8376] RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043f0b9 [ 51.255513][ T8376] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000004 [ 51.263547][ T8376] RBP: 00000000004030a0 R08: 0000000000400488 R09: 0000000000400488 [ 51.271513][ T8376] R10: 0000000000400488 R11: 0000000000000246 R12: 0000000000403130 [ 51.279562][ T8376] R13: 0000000000000000 R14: 00000000004ac018 R15: 0000000000400488 [ 51.287524][ T8376] Modules linked in: [ 51.292203][ T8376] ---[ end trace a69c222991d66c52 ]--- [ 51.297666][ T8376] RIP: 0010:bond_ipsec_add_sa+0xf3/0x1f0 [ 51.303365][ T8376] Code: fc c6 05 fb 21 d4 08 01 48 c7 c7 e7 4f 78 8b be 9b 01 00 00 48 c7 c2 60 dc 41 8a e8 b7 82 8f fc 4c 89 e5 48 c1 ed 03 4d 89 ee <42> 80 7c 2d 00 00 74 08 4c 89 e7 e8 dd 7d ef fc 4d 8b 2c 24 49 8d [ 51.323019][ T8376] RSP: 0018:ffffc90000edf770 EFLAGS: 00010246 [ 51.329151][ T8376] RAX: 7bf6ae087f8d7000 RBX: 0000000000000000 RCX: ffff888029570000 [ 51.337133][ T8376] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 51.345119][ T8376] RBP: 0000000000000000 R08: ffffffff83f4a5d7 R09: fffffbfff1f26eca [ 51.353144][ T8376] R10: fffffbfff1f26eca R11: 0000000000000000 R12: 0000000000000000 [ 51.361146][ T8376] R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff88801407c000 [ 51.369167][ T8376] FS: 00000000018d6300(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 51.378105][ T8376] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.384697][ T8376] CR2: 00007fff2cb51ff8 CR3: 0000000025e88000 CR4: 00000000001506f0 [ 51.392714][ T8376] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.400920][ T8376] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.408959][ T8376] Kernel panic - not syncing: Fatal exception [ 51.415498][ T8376] Kernel Offset: disabled [ 51.419822][ T8376] Rebooting in 86400 seconds..