rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2685 jiffies s: 159925 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 9 Comm: kworker/0:1 Not tainted 6.11.0-rc3-syzkaller-00013-g6b0f8db921ab #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Workqueue: events request_firmware_work_func
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:26 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:182 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:245 [inline]
RIP: 0010:__sanitizer_cov_trace_cmp4+0x11/0x90 kernel/kcov.c:287
Code: 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 65 48 8b 14 25 40 d7 03 00 <65> 8b 05 e0 5d 70 7e 25 00 01 ff 00 74 10 3d 00 01 00 00 75 5b 83
RSP: 0018:ffffc900000059c0 EFLAGS: 00000046
RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffff888017ad0000
RDX: ffff888017ad0000 RSI: 0000000000000002 RDI: 0000000000000001
RBP: ffffc90000005aa0 R08: ffffffff814134cb R09: ffffffff814130bf
R10: 0000000000000003 R11: ffff888017ad0000 R12: ffffc900000e7070
R13: dffffc0000000000 R14: 0000000000000001 R15: 1ffff92000000b54
FS:  0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d65ffff CR3: 00000000529da000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 unwind_next_frame+0x1d7b/0x2a00 arch/x86/kernel/unwind_orc.c:664
 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:579
 poison_slab_object+0xe0/0x150 mm/kasan/common.c:240
 __kasan_slab_free+0x37/0x60 mm/kasan/common.c:256
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2252 [inline]
 slab_free mm/slub.c:4473 [inline]
 kfree+0x149/0x360 mm/slub.c:4594
 dummy_timer+0x7ce/0x45a0 drivers/usb/gadget/udc/dummy_hcd.c:1981
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1753
 hrtimer_interrupt+0x396/0x990 kernel/time/hrtimer.c:1815
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x110/0x3f0 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1043
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:unwind_next_frame+0x1d5e/0x2a00 arch/x86/kernel/unwind_orc.c:664
Code: e8 57 1a 00 00 49 89 c6 48 8d 5d 40 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 4a 8a b9 00 4c 89 33 43 0f b6 04 2f <84> c0 0f 85 5a 09 00 00 44 8b 75 00 44 89 f7 8b 9c 24 8c 00 00 00
RSP: 0018:ffffc90000006568 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffffff911d5f2a RCX: ffff888017ad0000
RDX: 0000000000000100 RSI: 0000000000000002 RDI: ffffc900000078b0
RBP: ffffc90000006640 R08: ffffffff8141454b R09: ffffffff814130bf
R10: 0000000000000003 R11: ffff888017ad0000 R12: ffffc900000078b8
R13: dffffc0000000000 R14: ffffc90000006690 R15: 1ffff92000000cc8
 arch_stack_walk+0x151/0x1b0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:47 [inline]
 kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:312 [inline]
 __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:338
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3988 [inline]
 slab_alloc_node mm/slub.c:4037 [inline]
 kmem_cache_alloc_node_noprof+0x16b/0x320 mm/slub.c:4080
 kmalloc_reserve+0xa8/0x2a0 net/core/skbuff.c:583
 __alloc_skb+0x1f3/0x440 net/core/skbuff.c:674
 alloc_skb include/linux/skbuff.h:1320 [inline]
 __tcp_send_ack+0xa2/0x600 net/ipv4/tcp_output.c:4242
 tcp_rcv_established+0x14d8/0x2020 net/ipv4/tcp_input.c:6197
 tcp_v4_do_rcv+0x96d/0xc70 net/ipv4/tcp_ipv4.c:1909
 tcp_v4_rcv+0x2dbd/0x37f0 net/ipv4/tcp_ipv4.c:2344
 ip_protocol_deliver_rcu+0x22b/0x440 net/ipv4/ip_input.c:205
 ip_local_deliver_finish+0x341/0x5f0 net/ipv4/ip_input.c:233
 NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314
 ip_local_deliver net/ipv4/ip_input.c:254 [inline]
 dst_input include/net/dst.h:460 [inline]
 ip_sublist_rcv_finish+0x3be/0x4f0 net/ipv4/ip_input.c:580
 ip_list_rcv_finish net/ipv4/ip_input.c:631 [inline]
 ip_sublist_rcv+0x75d/0xab0 net/ipv4/ip_input.c:639
 ip_list_rcv+0x42b/0x480 net/ipv4/ip_input.c:674
 __netif_receive_skb_list_ptype net/core/dev.c:5704 [inline]
 __netif_receive_skb_list_core+0x95a/0x980 net/core/dev.c:5752
 __netif_receive_skb_list net/core/dev.c:5804 [inline]
 netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5896
 gro_normal_list include/net/gro.h:515 [inline]
 napi_complete_done+0x310/0x8e0 net/core/dev.c:6247
 virtqueue_napi_complete drivers/net/virtio_net.c:694 [inline]
 virtnet_poll+0x2c99/0x3870 drivers/net/virtio_net.c:2826
 __napi_poll+0xcb/0x490 net/core/dev.c:6772
 napi_poll net/core/dev.c:6841 [inline]
 net_rx_action+0x89b/0x1240 net/core/dev.c:6963
 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_flush_all+0xaad/0xfd0 kernel/printk/printk.c:3055
Code: ff ff e8 56 c2 1f 00 90 0f 0b 90 e9 d8 f8 ff ff e8 48 c2 1f 00 e8 13 55 42 0a 4d 85 f6 74 b6 e8 39 c2 1f 00 fb 48 8b 44 24 70 <42> 0f b6 04 38 84 c0 48 8b 7c 24 30 0f 85 22 02 00 00 0f b6 1f 31
RSP: 0018:ffffc900000e7120 EFLAGS: 00000293
RAX: 1ffff9200001ce70 RBX: 0000000000000000 RCX: ffff888017ad0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900000e72d0 R08: ffffffff8173b4f4 R09: 1ffffffff26e5d08
R10: dffffc0000000000 R11: fffffbfff26e5d09 R12: ffffffff8f3f8818
R13: ffffffff8f3f87c0 R14: 0000000000000200 R15: dffffc0000000000
 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3118
 vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2348
 dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4912
 dev_printk_emit+0xdd/0x120 drivers/base/core.c:4923
 _dev_err+0x122/0x170 drivers/base/core.c:4978
 ath9k_htc_wait_for_target+0x132/0x160 drivers/net/wireless/ath/ath9k/htc_drv_init.c:91
 ath9k_htc_probe_device+0x1a5/0x2240 drivers/net/wireless/ath/ath9k/htc_drv_init.c:949
 ath9k_htc_hw_init+0x34/0x80 drivers/net/wireless/ath/ath9k/htc_hst.c:529
 ath9k_hif_usb_firmware_cb+0x255/0x4b0 drivers/net/wireless/ath/ath9k/hif_usb.c:1273
 request_firmware_work_func+0x1a4/0x280 drivers/base/firmware_loader/main.c:1167
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>