netlink: 24 bytes leftover after parsing attributes in process `syz-executor.5'.
general protection fault, probably for non-canonical address 0xe0eeeaeee000eee3: 0000 [#1] PREEMPT SMP KASAN
KASAN: maybe wild-memory-access in range [0x0777777700077718-0x077777770007771f]
CPU: 1 PID: 30964 Comm: syz-executor.5 Not tainted 5.8.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:batadv_hardif_get_by_netdev+0x14c/0x400 net/batman-adv/hard-interface.c:72
Code: 18 00 0f 85 92 02 00 00 4d 8b 24 24 49 81 fc e0 9d 4f 8d 0f 84 b4 01 00 00 e8 80 51 aa f9 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 73 02 00 00 4d 39 6c 24 18 75 b7 e8 5e 51 aa f9
RSP: 0018:ffffc90008b56cc0 EFLAGS: 00010202
RAX: 00eeeeeee000eee3 RBX: dffffc0000000000 RCX: ffffc90013f96000
RDX: 0000000000040000 RSI: ffffffff87c96b50 RDI: 0777777700077718
RBP: ffff8880170b4000 R08: 0000000000000000 R09: ffffffff8c59aa27
R10: 0000000000000000 R11: 0000000000000000 R12: 0777777700077700
R13: ffff8880170b4000 R14: 0000000000000000 R15: ffffffff8aa48e80
FS:  00007f4d14c63700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000c9fda8 CR3: 0000000020334000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 batadv_hard_if_event+0x62/0x12f0 net/batman-adv/hard-interface.c:1031
 notifier_call_chain+0xb5/0x200 kernel/notifier.c:83
 call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:2027
 call_netdevice_notifiers_extack net/core/dev.c:2039 [inline]
 call_netdevice_notifiers net/core/dev.c:2053 [inline]
 register_netdevice+0xa52/0x1540 net/core/dev.c:9509
 veth_newlink+0x53a/0xa00 drivers/net/veth.c:1393
 __rtnl_newlink+0x1090/0x1750 net/core/rtnetlink.c:3339
 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3398
 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5461
 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2469
 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1329
 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1918
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2352
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2406
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439
 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45c369
Code: 8d b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 5b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f4d14c62c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000002b740 RCX: 000000000045c369
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000007
RBP: 000000000078bf40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c
R13: 0000000000c9fb6f R14: 00007f4d14c639c0 R15: 000000000078bf0c
Modules linked in:
---[ end trace 276d693bf1fe1367 ]---
RIP: 0010:batadv_hardif_get_by_netdev+0x14c/0x400 net/batman-adv/hard-interface.c:72
Code: 18 00 0f 85 92 02 00 00 4d 8b 24 24 49 81 fc e0 9d 4f 8d 0f 84 b4 01 00 00 e8 80 51 aa f9 49 8d 7c 24 18 48 89 f8 48 c1 e8 03 <80> 3c 18 00 0f 85 73 02 00 00 4d 39 6c 24 18 75 b7 e8 5e 51 aa f9
RSP: 0018:ffffc90008b56cc0 EFLAGS: 00010202
RAX: 00eeeeeee000eee3 RBX: dffffc0000000000 RCX: ffffc90013f96000
RDX: 0000000000040000 RSI: ffffffff87c96b50 RDI: 0777777700077718
RBP: ffff8880170b4000 R08: 0000000000000000 R09: ffffffff8c59aa27
R10: 0000000000000000 R11: 0000000000000000 R12: 0777777700077700
R13: ffff8880170b4000 R14: 0000000000000000 R15: ffffffff8aa48e80
FS:  00007f4d14c63700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d121000 CR3: 0000000020334000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400