=====================================================
BUG: KMSAN: uninit-value in __flush_smp_call_function_queue+0x343/0x1810 kernel/smp.c:549
 __flush_smp_call_function_queue+0x343/0x1810 kernel/smp.c:549
 generic_smp_call_function_single_interrupt+0x1c/0x30 kernel/smp.c:477
 __sysvec_call_function_single+0x48/0x350 arch/x86/kernel/smp.c:272
 instr_sysvec_call_function_single arch/x86/kernel/smp.c:267 [inline]
 sysvec_call_function_single+0x7c/0x90 arch/x86/kernel/smp.c:267
 asm_sysvec_call_function_single+0x1f/0x30 arch/x86/include/asm/idtentry.h:704
 console_flush_one_record arch/x86/include/asm/irqflags.h:-1 [inline]
 console_flush_all+0xe48/0x1270 kernel/printk/printk.c:3343
 __console_flush_and_unlock kernel/printk/printk.c:3373 [inline]
 console_unlock+0xeb/0x460 kernel/printk/printk.c:3413
 vprintk_emit+0x850/0xba0 kernel/printk/printk.c:2479
 dev_vprintk_emit+0x5ac/0x7a0 drivers/base/core.c:4930
 dev_printk_emit+0x180/0x1b0 drivers/base/core.c:4941
 __dev_printk+0x2a1/0x330 drivers/base/core.c:4953
 _dev_warn+0x1b4/0x1d0 drivers/base/core.c:4997
 hub_port_init+0x3639/0x41c0 drivers/usb/core/hub.c:5166
 hub_port_connect drivers/usb/core/hub.c:5496 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
 port_event drivers/usb/core/hub.c:5871 [inline]
 hub_event+0x4ba2/0x77c0 drivers/usb/core/hub.c:5953
 process_one_work kernel/workqueue.c:3314 [inline]
 process_scheduled_works+0xb65/0x1e40 kernel/workqueue.c:3397
 worker_thread+0xee4/0x1590 kernel/workqueue.c:3478
 kthread+0x53a/0x5f0 kernel/kthread.c:436
 ret_from_fork+0x20f/0x8d0 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Local variable pinfo created at:
 receive_announce+0x43/0x3d0 sound/core/seq/oss/seq_oss_init.c:119
 __snd_seq_deliver_single_event sound/core/seq/seq_clientmgr.c:599 [inline]
 _snd_seq_deliver_single_event sound/core/seq/seq_clientmgr.c:645 [inline]
 snd_seq_deliver_single_event+0xef9/0x1260 sound/core/seq/seq_clientmgr.c:660

CPU: 0 UID: 0 PID: 11466 Comm: kworker/0:7 Tainted: G             L      syzkaller #0 PREEMPT(lazy) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Workqueue: usb_hub_wq hub_event
=====================================================