WARNING: CPU: 1 PID: 9861 at net/core/dev.c:10870 unregister_netdevice_many+0x24b2/0x2f20 Modules linked in: CPU: 1 PID: 9861 Comm: kworker/u4:80 Tainted: G W 6.1.0-rc2-syzkaller-61959-gbe8b0d020631 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Workqueue: netns cleanup_net ===================================================== BUG: KMSAN: uninit-value in show_regs+0xb9/0xd0 arch/x86/kernel/dumpstack.c:469 show_regs+0xb9/0xd0 arch/x86/kernel/dumpstack.c:469 __warn+0x242/0x580 kernel/panic.c:618 report_bug+0x7ff/0xa10 lib/bug.c:198 handle_bug+0x41/0x70 arch/x86/kernel/traps.c:317 exc_invalid_op+0x1b/0x50 arch/x86/kernel/traps.c:338 asm_exc_invalid_op+0x1b/0x20 arch/x86/include/asm/idtentry.h:568 unregister_netdevice_many+0x24b2/0x2f20 default_device_exit_batch+0xb50/0xc20 net/core/dev.c:11341 ops_exit_list net/core/net_namespace.c:167 [inline] cleanup_net+0xdea/0x18c0 net/core/net_namespace.c:594 process_one_work+0xb27/0x13e0 kernel/workqueue.c:2289 worker_thread+0x1076/0x1d60 kernel/workqueue.c:2436 kthread+0x31b/0x430 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Local variable priv created at: netdev_upper_dev_unlink+0x42/0x70 net/core/dev.c:7773 hsr_del_port+0x2c6/0x410 net/hsr/hsr_slave.c:217 CPU: 1 PID: 9861 Comm: kworker/u4:80 Tainted: G W 6.1.0-rc2-syzkaller-61959-gbe8b0d020631 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Workqueue: netns cleanup_net =====================================================