------------[ cut here ]------------ WARNING: CPU: 0 PID: 10057 at net/core/dev.c:9593 dev_index_reserve+0x1a2/0x1c0 net/core/dev.c:9593 Modules linked in: CPU: 0 PID: 10057 Comm: syz-executor.2 Not tainted 6.5.0-rc6-syzkaller-01712-g23c167af2404 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 RIP: 0010:dev_index_reserve+0x1a2/0x1c0 net/core/dev.c:9593 Code: 00 31 d2 4d 8d 45 50 b9 ff ff ff 7f 48 8d 74 24 20 e8 02 3e 02 02 4c 89 e7 89 c3 e8 c8 38 11 02 e9 48 ff ff ff e8 6e f2 5d f9 <0f> 0b bb ea ff ff ff e9 52 ff ff ff e8 4d 87 0d 02 66 66 2e 0f 1f RSP: 0018:ffffc9000521efa8 EFLAGS: 00010287 RAX: 000000000000ef69 RBX: 0000000084d446a1 RCX: ffffc900041fa000 RDX: 0000000000040000 RSI: ffffffff88282e22 RDI: 0000000000000005 RBP: 1ffff92000a43df5 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000084d446a1 R11: 0000000000094000 R12: ffff888045c3e010 R13: ffff888046a88000 R14: ffff888045c3e000 R15: ffff888045c3e0f8 FS: 00007f78873956c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3125d75198 CR3: 0000000062bce000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: register_netdevice+0x69a/0x1490 net/core/dev.c:10081 veth_newlink+0x521/0xa50 drivers/net/veth.c:1939 rtnl_newlink_create net/core/rtnetlink.c:3471 [inline] __rtnl_newlink+0x115e/0x18c0 net/core/rtnetlink.c:3688 rtnl_newlink+0x67/0xa0 net/core/rtnetlink.c:3701 rtnetlink_rcv_msg+0x439/0xd30 net/core/rtnetlink.c:6427 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2545 netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline] netlink_unicast+0x536/0x810 net/netlink/af_netlink.c:1368 netlink_sendmsg+0x93c/0xe40 net/netlink/af_netlink.c:1910 sock_sendmsg_nosec net/socket.c:728 [inline] sock_sendmsg+0xd9/0x180 net/socket.c:751 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2538 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2592 __sys_sendmsg+0x117/0x1e0 net/socket.c:2621 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f788667cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 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 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f78873950c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f788679bf80 RCX: 00007f788667cae9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 00007f78866c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f788679bf80 R15: 00007ffc71f09898