netlink: 'syz-executor417': attribute type 3 has an invalid length. netlink: 'syz-executor417': attribute type 3 has an invalid length. team0: Mode changed to "activebackup" kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 6024 Comm: syz-executor417 Not tainted 4.20.0-rc6+ #240 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__team_option_inst_tmp_find drivers/net/team/team.c:264 [inline] RIP: 0010:team_nl_cmd_options_set+0xa2d/0x1370 drivers/net/team/team.c:2591 Code: 8b 74 24 38 75 13 e9 eb 05 00 00 e8 1d 5c e0 fc 49 39 dc 0f 84 dd 05 00 00 e8 0f 5c e0 fc 49 8d 7c 24 10 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 0f 85 af 06 00 00 49 8b 44 24 10 4c 8d 60 f0 49 39 RSP: 0018:ffff8881c282f270 EFLAGS: 00010203 RAX: 000000060dac2cae RBX: ffff8881cb25af00 RCX: ffffffff849f27e7 RDX: 0000000000000000 RSI: ffffffff849f2861 RDI: 000000306d616574 RBP: ffff8881c282f4d0 R08: ffff8881c2950480 R09: ffffed103b5e5020 R10: ffffed103b5e5020 R11: ffff8881daf28107 R12: 000000306d616564 R13: ffff8881cb25a910 R14: ffff8881c282f360 R15: dffffc0000000000 FS: 00000000019b2880(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000040 CR3: 00000001c2a97000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: genl_family_rcv_msg+0x8a7/0x11a0 net/netlink/genetlink.c:601 genl_rcv_msg+0xc6/0x168 net/netlink/genetlink.c:626 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2477 genl_rcv+0x28/0x40 net/netlink/genetlink.c:637 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline] netlink_unicast+0x5a5/0x760 net/netlink/af_netlink.c:1336 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2116 __sys_sendmsg+0x11d/0x280 net/socket.c:2154 __do_sys_sendmsg net/socket.c:2163 [inline] __se_sys_sendmsg net/socket.c:2161 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2161 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x446ec9 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 ce fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fffd6eb5638 EFLAGS: 00000213 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000020000e94 RCX: 0000000000446ec9 RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000004 RBP: 00000000004a8ac0 R08: 00000000004a8ae8 R09: 0000000000000100 R10: 0000000020000ff8 R11: 0000000000000213 R12: 00000000004a8b60 R13: 00000000004042e0 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 64ebfe28cbceb2e8 ]--- RIP: 0010:__team_option_inst_tmp_find drivers/net/team/team.c:264 [inline] RIP: 0010:team_nl_cmd_options_set+0xa2d/0x1370 drivers/net/team/team.c:2591 Code: 8b 74 24 38 75 13 e9 eb 05 00 00 e8 1d 5c e0 fc 49 39 dc 0f 84 dd 05 00 00 e8 0f 5c e0 fc 49 8d 7c 24 10 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 0f 85 af 06 00 00 49 8b 44 24 10 4c 8d 60 f0 49 39 RSP: 0018:ffff8881c282f270 EFLAGS: 00010203 RAX: 000000060dac2cae RBX: ffff8881cb25af00 RCX: ffffffff849f27e7 RDX: 0000000000000000 RSI: ffffffff849f2861 RDI: 000000306d616574 RBP: ffff8881c282f4d0 R08: ffff8881c2950480 R09: ffffed103b5e5020 R10: ffffed103b5e5020 R11: ffff8881daf28107 R12: 000000306d616564 R13: ffff8881cb25a910 R14: ffff8881c282f360 R15: dffffc0000000000 FS: 00000000019b2880(0000) GS:ffff8881daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000040 CR3: 00000001c2a97000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400