[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.138' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 62.357170][ T8479] netlink: 'syz-executor752': attribute type 1 has an invalid length. [ 62.585549][ T8479] [ 62.588155][ T8479] ============================= [ 62.592995][ T8479] WARNING: suspicious RCU usage [ 62.606974][ T8479] 5.10.0-rc1-syzkaller #0 Not tainted [ 62.612355][ T8479] ----------------------------- [ 62.618097][ T8479] drivers/net/bonding/bond_main.c:395 suspicious rcu_dereference_check() usage! [ 62.635021][ T8479] [ 62.635021][ T8479] other info that might help us debug this: [ 62.635021][ T8479] [ 62.656527][ T8479] [ 62.656527][ T8479] rcu_scheduler_active = 2, debug_locks = 1 [ 62.675029][ T8479] 1 lock held by syz-executor752/8479: [ 62.680501][ T8479] #0: ffffffff8c919328 (&net->xfrm.xfrm_cfg_mutex){+.+.}-{3:3}, at: xfrm_netlink_rcv+0x5c/0x90 [ 62.694696][ T8479] [ 62.694696][ T8479] stack backtrace: [ 62.701271][ T8479] CPU: 0 PID: 8479 Comm: syz-executor752 Not tainted 5.10.0-rc1-syzkaller #0 [ 62.710034][ T8479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 62.720172][ T8479] Call Trace: [ 62.723467][ T8479] dump_stack+0x107/0x163 [ 62.727799][ T8479] bond_ipsec_add_sa+0x1dc/0x240 [ 62.732747][ T8479] xfrm_dev_state_add+0x2da/0x7b0 [ 62.737778][ T8479] xfrm_add_sa+0x2166/0x34f0 [ 62.742377][ T8479] ? xfrm_get_sa+0x2c0/0x2c0 [ 62.746982][ T8479] ? bpf_lsm_capable+0x5/0x10 [ 62.751665][ T8479] ? security_capable+0x8f/0xc0 [ 62.756524][ T8479] ? __nla_parse+0x3d/0x50 [ 62.760944][ T8479] ? xfrm_get_sa+0x2c0/0x2c0 [ 62.765559][ T8479] xfrm_user_rcv_msg+0x42f/0x8b0 [ 62.770504][ T8479] ? xfrm_do_migrate+0x800/0x800 [ 62.775449][ T8479] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 62.781474][ T8479] ? __mutex_lock+0x626/0x10e0 [ 62.786250][ T8479] netlink_rcv_skb+0x153/0x420 [ 62.791017][ T8479] ? xfrm_do_migrate+0x800/0x800 [ 62.795962][ T8479] ? netlink_ack+0xaa0/0xaa0 [ 62.800575][ T8479] xfrm_netlink_rcv+0x6b/0x90 [ 62.805256][ T8479] netlink_unicast+0x533/0x7d0 [ 62.810030][ T8479] ? netlink_attachskb+0x810/0x810 [ 62.815154][ T8479] ? __phys_addr_symbol+0x2c/0x70 [ 62.820618][ T8479] ? __check_object_size+0x171/0x3f0 [ 62.825910][ T8479] netlink_sendmsg+0x856/0xd90 [ 62.830694][ T8479] ? netlink_unicast+0x7d0/0x7d0 [ 62.835647][ T8479] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 62.840941][ T8479] ? netlink_unicast+0x7d0/0x7d0 [ 62.845885][ T8479] sock_sendmsg+0xcf/0x120 [ 62.850309][ T8479] ____sys_sendmsg+0x6e8/0x810 [ 62.855082][ T8479] ? kernel_sendmsg+0x50/0x50 [ 62.859754][ T8479] ? do_recvmmsg+0x6c0/0x6c0 [ 62.864327][ T8479] ? security_file_alloc+0x34/0x170 [ 62.869505][ T8479] ? fs_reclaim_release+0x90/0xd0 [ 62.874509][ T8479] ___sys_sendmsg+0xf3/0x170 [ 62.879076][ T8479] ? sendmsg_copy_msghdr+0x160/0x160 [ 62.884339][ T8479] ? lockdep_init_map_waits+0x26a/0x720 [ 62.889860][ T8479] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 62.895848][ T8479] ? percpu_counter_add_batch+0xbd/0x180 [ 62.901462][ T8479] ? find_held_lock+0x2d/0x110 [ 62.906200][ T8479] ? __fd_install+0x1b4/0x600 [ 62.910851][ T8479] ? lock_downgrade+0x6d0/0x6d0 [ 62.915684][ T8479] ? __fget_light+0x215/0x280 [ 62.920340][ T8479] __sys_sendmsg+0xe5/0x1b0 [ 62.924819][ T8479] ? __sys_sendmsg_sock+0xb0/0xb0 [ 62.929831][ T8479] ? syscall_enter_from_user_mode+0x1d/0x50 [ 62.935704][ T8479] do_syscall_64+0x2d/0x70 [ 62.940098][ T8479] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 62.945967][ T8479] RIP: 0033:0x440449 [ 62.949838][ T8479] 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 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 62.969418][ T8479] RSP: 002b:00007fff7c6c0558 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 62.977809][ T8479] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440449 [ 62.985757][ T8479] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000004 [ 62.993703][ T8479] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 63.001654][ T8479] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401c50 [ 63.009613][ T8479] R13: 0000000000401ce0 R14: 0000000000000000 R15: 0000000000000000 [ 63.026260][ T8479] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 63.037960][ T8479] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 63.046340][ T8479] CPU: 0 PID: 8479 Comm: syz-executor752 Not tainted 5.10.0-rc1-syzkaller #0 [ 63.055063][ T8479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.065093][ T8479] RIP: 0010:bond_ipsec_add_sa+0x9e/0x240 [ 63.070696][ T8479] Code: 04 31 ff 89 c3 89 c6 e8 d0 fc d9 fc 85 db 0f 85 f6 00 00 00 e8 73 04 da fc 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 5f 01 00 00 48 8d bd d0 02 00 00 49 8b 5d 00 48 [ 63.090271][ T8479] RSP: 0018:ffffc9000101f498 EFLAGS: 00010246 [ 63.096305][ T8479] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff81559667 [ 63.104271][ T8479] RDX: 0000000000000000 RSI: ffffffff8496028d RDI: 0000000000000000 [ 63.112215][ T8479] RBP: ffff8880227f0000 R08: 0000000000000001 R09: ffffffff8ebad727 [ 63.120161][ T8479] R10: fffffbfff1d75ae4 R11: 0000000000000000 R12: ffff88801869c000 [ 63.128103][ T8479] R13: 0000000000000000 R14: ffff8880227f02e0 R15: ffff8880227f02e4 [ 63.136046][ T8479] FS: 0000000000cbe880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 63.145047][ T8479] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.151729][ T8479] CR2: 00007efc263a6000 CR3: 000000001769a000 CR4: 00000000001506f0 [ 63.159675][ T8479] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.167619][ T8479] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.175644][ T8479] Call Trace: [ 63.179031][ T8479] xfrm_dev_state_add+0x2da/0x7b0 [ 63.184025][ T8479] xfrm_add_sa+0x2166/0x34f0 [ 63.188586][ T8479] ? xfrm_get_sa+0x2c0/0x2c0 [ 63.193144][ T8479] ? bpf_lsm_capable+0x5/0x10 [ 63.197793][ T8479] ? security_capable+0x8f/0xc0 [ 63.202632][ T8479] ? __nla_parse+0x3d/0x50 [ 63.207049][ T8479] ? xfrm_get_sa+0x2c0/0x2c0 [ 63.211620][ T8479] xfrm_user_rcv_msg+0x42f/0x8b0 [ 63.216535][ T8479] ? xfrm_do_migrate+0x800/0x800 [ 63.221455][ T8479] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 63.227408][ T8479] ? __mutex_lock+0x626/0x10e0 [ 63.232172][ T8479] netlink_rcv_skb+0x153/0x420 [ 63.236907][ T8479] ? xfrm_do_migrate+0x800/0x800 [ 63.241814][ T8479] ? netlink_ack+0xaa0/0xaa0 [ 63.246379][ T8479] xfrm_netlink_rcv+0x6b/0x90 [ 63.251026][ T8479] netlink_unicast+0x533/0x7d0 [ 63.255758][ T8479] ? netlink_attachskb+0x810/0x810 [ 63.260958][ T8479] ? __phys_addr_symbol+0x2c/0x70 [ 63.265953][ T8479] ? __check_object_size+0x171/0x3f0 [ 63.271206][ T8479] netlink_sendmsg+0x856/0xd90 [ 63.275944][ T8479] ? netlink_unicast+0x7d0/0x7d0 [ 63.280854][ T8479] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 63.286109][ T8479] ? netlink_unicast+0x7d0/0x7d0 [ 63.291017][ T8479] sock_sendmsg+0xcf/0x120 [ 63.295411][ T8479] ____sys_sendmsg+0x6e8/0x810 [ 63.300234][ T8479] ? kernel_sendmsg+0x50/0x50 [ 63.304884][ T8479] ? do_recvmmsg+0x6c0/0x6c0 [ 63.309467][ T8479] ? security_file_alloc+0x34/0x170 [ 63.314640][ T8479] ? fs_reclaim_release+0x90/0xd0 [ 63.319645][ T8479] ___sys_sendmsg+0xf3/0x170 [ 63.324225][ T8479] ? sendmsg_copy_msghdr+0x160/0x160 [ 63.329486][ T8479] ? lockdep_init_map_waits+0x26a/0x720 [ 63.335004][ T8479] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 63.341061][ T8479] ? percpu_counter_add_batch+0xbd/0x180 [ 63.346770][ T8479] ? find_held_lock+0x2d/0x110 [ 63.351706][ T8479] ? __fd_install+0x1b4/0x600 [ 63.356371][ T8479] ? lock_downgrade+0x6d0/0x6d0 [ 63.361190][ T8479] ? __fget_light+0x215/0x280 [ 63.365842][ T8479] __sys_sendmsg+0xe5/0x1b0 [ 63.370321][ T8479] ? __sys_sendmsg_sock+0xb0/0xb0 [ 63.375320][ T8479] ? syscall_enter_from_user_mode+0x1d/0x50 [ 63.381183][ T8479] do_syscall_64+0x2d/0x70 [ 63.385577][ T8479] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.391439][ T8479] RIP: 0033:0x440449 [ 63.395312][ T8479] 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 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 63.414997][ T8479] RSP: 002b:00007fff7c6c0558 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 63.423402][ T8479] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440449 [ 63.431343][ T8479] RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000004 [ 63.439299][ T8479] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 63.447252][ T8479] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401c50 [ 63.455204][ T8479] R13: 0000000000401ce0 R14: 0000000000000000 R15: 0000000000000000 [ 63.463161][ T8479] Modules linked in: [ 63.467448][ T8479] ---[ end trace 7a2033dd645fb65c ]--- [ 63.472929][ T8479] RIP: 0010:bond_ipsec_add_sa+0x9e/0x240 [ 63.479029][ T8479] Code: 04 31 ff 89 c3 89 c6 e8 d0 fc d9 fc 85 db 0f 85 f6 00 00 00 e8 73 04 da fc 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 5f 01 00 00 48 8d bd d0 02 00 00 49 8b 5d 00 48 [ 63.498678][ T8479] RSP: 0018:ffffc9000101f498 EFLAGS: 00010246 [ 63.504746][ T8479] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff81559667 [ 63.512725][ T8479] RDX: 0000000000000000 RSI: ffffffff8496028d RDI: 0000000000000000 [ 63.520735][ T8479] RBP: ffff8880227f0000 R08: 0000000000000001 R09: ffffffff8ebad727 [ 63.528728][ T8479] R10: fffffbfff1d75ae4 R11: 0000000000000000 R12: ffff88801869c000 [ 63.536764][ T8479] R13: 0000000000000000 R14: ffff8880227f02e0 R15: ffff8880227f02e4 [ 63.544714][ T8479] FS: 0000000000cbe880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 63.553658][ T8479] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.560653][ T8479] CR2: 00007efc263a6000 CR3: 000000001769a000 CR4: 00000000001506f0 [ 63.568634][ T8479] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.576644][ T8479] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.584597][ T8479] Kernel panic - not syncing: Fatal exception [ 63.591075][ T8479] Kernel Offset: disabled [ 63.595395][ T8479] Rebooting in 86400 seconds..