rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2642 jiffies s: 36481 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4523 Comm: udevd Not tainted 6.7.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
RIP: 0010:native_save_fl arch/x86/include/asm/irqflags.h:26 [inline]
RIP: 0010:arch_local_save_flags arch/x86/include/asm/irqflags.h:67 [inline]
RIP: 0010:arch_irqs_disabled arch/x86/include/asm/irqflags.h:127 [inline]
RIP: 0010:lock_release+0x399/0x690 kernel/locking/lockdep.c:5777
Code: 11 0f 84 5a 01 00 00 48 c7 c7 a0 b1 cc 8a e8 fe 0b 18 09 b8 ff ff ff ff 65 0f c1 05 69 91 9a 7e 83 f8 01 0f 85 c8 01 00 00 9c <58> f6 c4 02 0f 85 b3 01 00 00 48 f7 04 24 00 02 00 00 74 01 fb 48
RSP: 0018:ffffc900001f0780 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0d338be65f49b609 RCX: ffffc900001f07d8
RDX: 1ffff1100f5128c6 RSI: ffffffff8accb1a0 RDI: ffffffff8b2efce0
RBP: 1ffff9200003e0f3 R08: 0000000000000000 R09: fffffbfff1e327aa
R10: ffffffff8f193d57 R11: 0000000000000002 R12: 0000000000000002
R13: 0000000000000003 R14: ffff88807a894638 R15: ffff88807a893b80
FS:  00007fd351eccc80(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000032726000 CR3: 00000000290d1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 seqcount_lockdep_reader_access include/linux/seqlock.h:103 [inline]
 timekeeping_get_delta kernel/time/timekeeping.c:254 [inline]
 timekeeping_get_ns kernel/time/timekeeping.c:388 [inline]
 ktime_get_real_ts64+0x15c/0x570 kernel/time/timekeeping.c:827
 mon_bin_event+0xd4/0x2010 drivers/usb/mon/mon_bin.c:503
 mon_bus_complete+0xd3/0x150 drivers/usb/mon/mon_main.c:137
 usbmon_urb_complete include/linux/usb/hcd.h:737 [inline]
 __usb_hcd_giveback_urb+0x20a/0x5c0 drivers/usb/core/hcd.c:1636
 usb_hcd_giveback_urb+0x389/0x430 drivers/usb/core/hcd.c:1733
 dummy_timer+0x1415/0x3600 drivers/usb/gadget/udc/dummy_hcd.c:1987
 call_timer_fn+0x193/0x590 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x764/0xb20 kernel/time/timer.c:2022
 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2035
 __do_softirq+0x21a/0x8de kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:__sanitizer_cov_trace_switch+0x3b/0x90 kernel/kcov.c:341
Code: 53 48 8b 46 08 48 83 f8 20 74 63 77 44 48 83 f8 08 74 53 48 83 f8 10 75 2f 41 bd 03 00 00 00 4c 8b 75 00 31 db 4d 85 f6 74 1e <48> 8b 74 dd 10 4c 89 e2 4c 89 ef 48 83 c3 01 48 8b 4c 24 28 e8 2c
RSP: 0018:ffffc900031b7440 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff8139fcf5
RDX: ffff88807a893b80 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffffffff8ac9d100 R08: 0000000000000001 R09: 0000000000000004
R10: 0000000000000004 R11: 0000000000000000 R12: 0000000000000004
R13: 0000000000000001 R14: 0000000000000008 R15: ffffc900031b757d
 unwind_next_frame+0x6b5/0x2390 arch/x86/kernel/unwind_orc.c:515
 __unwind_start+0x5a4/0x880 arch/x86/kernel/unwind_orc.c:760
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0xaf/0x170 arch/x86/kernel/stacktrace.c:24
 stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
 kasan_set_track+0x25/0x30 mm/kasan/common.c:52
 __kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328
 kasan_slab_alloc include/linux/kasan.h:188 [inline]
 slab_post_alloc_hook mm/slab.h:763 [inline]
 slab_alloc_node mm/slub.c:3478 [inline]
 kmem_cache_alloc_node+0x180/0x330 mm/slub.c:3523
 __alloc_skb+0x287/0x330 net/core/skbuff.c:641
 alloc_skb include/linux/skbuff.h:1286 [inline]
 netlink_alloc_large_skb net/netlink/af_netlink.c:1214 [inline]
 netlink_sendmsg+0x9c6/0xe40 net/netlink/af_netlink.c:1885
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0xd5/0x180 net/socket.c:745
 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2584
 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2638
 __sys_sendmsg+0x117/0x1e0 net/socket.c:2667
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fd351b24a4b
Code: ff 89 ef 48 89 04 24 e8 22 56 f9 ff 48 8b 04 24 48 83 c4 20 5d c3 c3 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 6d 48 8b 15 ae c3 0c 00 f7 d8 64 89 02 48 83
RSP: 002b:00007ffda6dd1148 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000563bca425df0 RCX: 00007fd351b24a4b
RDX: 0000000000000000 RSI: 00007ffda6dd1158 RDI: 0000000000000004
RBP: 0000563bca44dbb0 R08: 0000000000000001 R09: f10ccbcd8d98209c
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000092 R14: 0000000000000000 R15: 0000000000000000
 </TASK>