rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2630 jiffies s: 6749 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: 5226 Comm: kworker/0:3 Not tainted 6.11.0-rc5-syzkaller-00050-g3ec3f5fc4a91 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 Workqueue: usb_hub_wq hub_event RIP: 0010:__orc_find+0x5e/0x130 arch/x86/kernel/unwind_orc.c:104 Code: 00 85 db 0f 84 dd 00 00 00 e8 6e a2 4d 00 4c 39 f5 0f 82 d3 00 00 00 4c 89 f3 4c 89 34 24 49 be 00 00 00 00 00 fc ff df eb 17 4d a2 4d 00 49 8d 5f 04 4c 89 3c 24 e8 40 a2 4d 00 48 39 dd 72 RSP: 0018:ffffc90000006428 EFLAGS: 00000002 RAX: 0000000000010303 RBX: ffffffff90220db0 RCX: ffffffff813cd424 RDX: ffff88801a7a3c00 RSI: ffffffff8134156f RDI: 0000000000000006 RBP: ffffffff90220db0 R08: 0000000000000006 R09: ffffffff8134156f R10: ffffffff81341478 R11: 0000000000000000 R12: ffffffff8134156f R13: ffffffff81341478 R14: dffffc0000000000 R15: ffffffff90220db0 FS: 0000000000000000(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2c208ff8 CR3: 000000007327c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: orc_find arch/x86/kernel/unwind_orc.c:227 [inline] unwind_next_frame+0x335/0x23a0 arch/x86/kernel/unwind_orc.c:494 arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:387 kmalloc_noprof include/linux/slab.h:681 [inline] dummy_urb_enqueue+0x8d/0x8a0 drivers/usb/gadget/udc/dummy_hcd.c:1271 usb_hcd_submit_urb+0x2d1/0x2090 drivers/usb/core/hcd.c:1533 usb_submit_urb+0x87c/0x1730 drivers/usb/core/urb.c:581 ath9k_hif_usb_reg_in_cb+0x494/0x690 drivers/net/wireless/ath/ath9k/hif_usb.c:792 __usb_hcd_giveback_urb+0x389/0x6e0 drivers/usb/core/hcd.c:1650 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734 dummy_timer+0x17c3/0x38d0 drivers/usb/gadget/udc/dummy_hcd.c:1987 __run_hrtimer kernel/time/hrtimer.c:1689 [inline] __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1753 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1815 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline] __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x43/0xb0 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+0x57/0x23a0 arch/x86/kernel/unwind_orc.c:682 Code: 04 02 84 c0 74 08 3c 03 0f 8e 0f 0d 00 00 8b 2b 31 ff 89 ee e8 0a 99 4d 00 85 ed 75 1c 31 db e8 bf 96 4d 00 89 d8 48 83 c4 40 <5b> 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 a5 96 4d 00 48 8d RSP: 0018:ffffc90000007020 EFLAGS: 00000282 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff813cf0ff RDX: ffff88801a7a3c00 RSI: ffffffff813cdf51 RDI: 0000000000000005 RBP: ffffc9000327fef0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000302 R11: 0000000000000000 R12: ffffc90003278000 R13: ffffc90003280000 R14: ffffc9000327fef8 R15: ffffc9000327fe28 arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 __kasan_record_aux_stack+0xba/0xd0 mm/kasan/generic.c:541 kvfree_call_rcu+0x74/0xbe0 kernel/rcu/tree.c:3815 cfg80211_update_known_bss+0x39f/0x1150 net/wireless/scan.c:1891 __cfg80211_bss_update+0x1aa/0x2560 net/wireless/scan.c:1937 cfg80211_inform_single_bss_data+0x79b/0x1dc0 net/wireless/scan.c:2331 cfg80211_inform_bss_data+0x205/0x39c0 net/wireless/scan.c:3159 cfg80211_inform_bss_frame_data+0x271/0x7a0 net/wireless/scan.c:3254 ieee80211_bss_info_update+0x311/0xab0 net/mac80211/scan.c:226 ieee80211_scan_rx+0x474/0xac0 net/mac80211/scan.c:340 __ieee80211_rx_handle_packet net/mac80211/rx.c:5225 [inline] ieee80211_rx_list+0x1be3/0x2e90 net/mac80211/rx.c:5462 ieee80211_rx_napi+0xdd/0x400 net/mac80211/rx.c:5485 ieee80211_rx include/net/mac80211.h:5124 [inline] ieee80211_handle_queued_frames+0xd5/0x130 net/mac80211/main.c:439 tasklet_action_common.constprop.0+0x24c/0x3e0 kernel/softirq.c:785 handle_softirqs+0x216/0x8f0 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu kernel/softirq.c:637 [inline] irq_exit_rcu+0xbb/0x120 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0x95/0xb0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sanitizer_cov_trace_pc+0x5f/0x70 kernel/kcov.c:230 Code: 00 00 85 c0 74 2b 8b 82 f8 15 00 00 83 f8 02 75 20 48 8b 8a 00 16 00 00 8b 92 fc 15 00 00 48 8b 01 48 83 c0 01 48 39 d0 73 07 <48> 89 01 48 89 34 c1 c3 cc cc cc cc 0f 1f 44 00 00 90 90 90 90 90 RSP: 0018:ffffc9000327f4c8 EFLAGS: 00000287 RAX: 000000000000010c RBX: ffffffff9025efc0 RCX: ffffc90014f40000 RDX: 0000000000100000 RSI: ffffffff813cd3c3 RDI: 0000000000000006 RBP: ffffffff9025efc4 R08: 0000000000000006 R09: ffffffff817614f4 R10: ffffffff8176146f R11: 0000000000000000 R12: ffffffff817614f4 R13: ffffffff8176146f R14: dffffc0000000000 R15: ffffffff9025efc0 __orc_find+0x63/0x130 arch/x86/kernel/unwind_orc.c:104 orc_find arch/x86/kernel/unwind_orc.c:227 [inline] unwind_next_frame+0x335/0x23a0 arch/x86/kernel/unwind_orc.c:494 arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:370 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:387 kmalloc_noprof include/linux/slab.h:681 [inline] usb_control_msg+0xbd/0x4b0 drivers/usb/core/message.c:144 get_port_status drivers/usb/core/hub.c:604 [inline] hub_ext_port_status+0x14e/0x670 drivers/usb/core/hub.c:621 usb_hub_port_status drivers/usb/core/hub.c:671 [inline] port_event drivers/usb/core/hub.c:5714 [inline] hub_event+0x6e0/0x4e10 drivers/usb/core/hub.c:5903 process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x6c8/0xed0 kernel/workqueue.c:3389 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244