CPU: 1 PID: 18193 Comm: syz-executor.0 Not tainted 6.0.0-rc5-syzkaller-48543-g968c2729e576 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
RIP: 0010:unregister_netdevice_many+0x256f/0x3020 net/core/dev.c:10886
Code: 30 f7 4d 39 ee 0f 84 34 fe ff ff e8 5b 55 b1 f6 0f 0b e9 2d fe ff ff e8 bf 63 30 f7 49 39 de 0f 84 20 ff ff ff e8 41 55 b1 f6 <0f> 0b e9 19 ff ff ff 44 89 ff e8 a2 63 30 f7 49 39 de 75 b2 e9 30
RSP: 0018:ffff8880b146b1b8 EFLAGS: 00010287
=====================================================
BUG: KMSAN: uninit-value in __show_regs+0xaff/0xc90 arch/x86/kernel/process_64.c:81
 __show_regs+0xaff/0xc90 arch/x86/kernel/process_64.c:81
 show_regs+0x6e/0xd0 arch/x86/kernel/dumpstack.c:469
 __warn+0x242/0x580 kernel/panic.c:621
 report_bug+0x7ff/0xa10 lib/bug.c:198
 handle_bug+0x41/0x70 arch/x86/kernel/traps.c:316
 exc_invalid_op+0x1b/0x50 arch/x86/kernel/traps.c:336
 asm_exc_invalid_op+0x1b/0x20
 unregister_netdevice_many+0x256f/0x3020
 rtnl_delete_link net/core/rtnetlink.c:3122 [inline]
 rtnl_dellink+0x1071/0x1490 net/core/rtnetlink.c:3173
 rtnetlink_rcv_msg+0x16c9/0x1860 net/core/rtnetlink.c:6090
 netlink_rcv_skb+0x3a5/0x6c0 net/netlink/af_netlink.c:2501
 rtnetlink_rcv+0x30/0x40 net/core/rtnetlink.c:6108
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0xf3b/0x1270 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x1288/0x1440 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 ____sys_sendmsg+0xabc/0xe90 net/socket.c:2482
 ___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2536
 __sys_sendmsg net/socket.c:2565 [inline]
 __do_sys_sendmsg net/socket.c:2574 [inline]
 __se_sys_sendmsg net/socket.c:2572 [inline]
 __x64_sys_sendmsg+0x367/0x540 net/socket.c:2572
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Local variable __wq_entry.i created at:
 exp_funnel_lock kernel/rcu/tree_exp.h:315 [inline]
 synchronize_rcu_expedited+0x103d/0x12d0 kernel/rcu/tree_exp.h:940
 synchronize_net net/core/dev.c:10764 [inline]
 unregister_netdevice_many+0xfd7/0x3020 net/core/dev.c:10847

CPU: 1 PID: 18193 Comm: syz-executor.0 Not tainted 6.0.0-rc5-syzkaller-48543-g968c2729e576 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022
=====================================================