rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P3368/2:b..l
rcu: 	(detected by 0, t=10568 jiffies, g=15281, q=7175 ncpus=2)
task:kworker/u8:19   state:R  running task     stack:22016 pid:3368  tgid:3368  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events_unbound cfg80211_wiphy_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x16d9/0x5700 kernel/sched/core.c:7284
 preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7606
 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:558 [inline]
 irqentry_exit+0x14f/0x9b0 kernel/entry/common.c:167
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:_ieee802_11_parse_elems_full+0x0/0x48f0 net/mac80211/parse.c:314
Code: ff e8 94 78 5a f7 e9 9f f8 ff ff 66 66 66 66 66 66 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 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48
RSP: 0018:ffffc9000fbf6bb8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff888065582000 RCX: ffff88803501ddc0
RDX: 0000000000000000 RSI: ffff888065582000 RDI: ffffc9000fbf6e40
RBP: ffffc9000fbf6db0 R08: 0000000000000000 R09: 0000000000000000
R10: ffff8880655822be R11: ffffed100cab045a R12: 0000000000000000
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff1100cab046d
 ieee802_11_parse_elems_full+0xfd1/0x2de0 net/mac80211/parse.c:1143
 ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2548 [inline]
 ieee80211_inform_bss+0x163/0x10d0 net/mac80211/scan.c:79
 rdev_inform_bss net/wireless/rdev-ops.h:418 [inline]
 cfg80211_inform_single_bss_data+0xd98/0x1bf0 net/wireless/scan.c:2446
 cfg80211_inform_bss_data+0x263/0x3cc0 net/wireless/scan.c:3302
 cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3394
 ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
 ieee80211_rx_bss_info net/mac80211/ibss.c:1065 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1546 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x1ce3/0x2c40 net/mac80211/ibss.c:1573
 ieee80211_iface_process_skb net/mac80211/iface.c:1809 [inline]
 ieee80211_iface_work+0x78a/0x1010 net/mac80211/iface.c:1863
 cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:564
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
 kthread+0x38b/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: rcu_preempt kthread timer wakeup didn't happen for 10261 jiffies! g15281 f0x0 RCU_GP_WAIT_FQS(5) ->state=I
rcu: 	Possible timer handling issue on cpu=0 timer-softirq=6414
rcu: rcu_preempt kthread starved for 10304 jiffies! g15281 f0x0 RCU_GP_WAIT_FQS(5) ->state=I ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:I stack:26752 pid:17    tgid:17    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x16d9/0x5700 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7376
 schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x30c/0x11f0 kernel/rcu/tree.c:2122
 rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2330
 kthread+0x38b/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:64
Code: 2b 5d 02 e9 53 d9 03 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 33 00 0f 00 fb f4 <c3> cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90
RSP: 0018:ffffffff8ee07ca0 EFLAGS: 00000246
RAX: 00000000000a18d1 RBX: ffffffff819abe2c RCX: 8000000000000001
RDX: 0000000000000001 RSI: ffffffff8d8c051f RDI: ffffffff8bcc6a80
RBP: ffffffff8ee07d78 R08: ffff8880b8433e9b R09: 1ffff110170867d3
R10: dffffc0000000000 R11: ffffed10170867d4 R12: 0000000000000000
R13: 1ffffffff1ddee00 R14: 1ffffffff1dc0f9c R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881249b9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fce77f8c3de CR3: 0000000032c4e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 arch_safe_halt arch/x86/kernel/process.c:767 [inline]
 default_idle+0x9/0x20 arch/x86/kernel/process.c:768
 default_idle_call+0x72/0xb0 kernel/sched/idle.c:122
 cpuidle_idle_call kernel/sched/idle.c:199 [inline]
 do_idle+0x1cc/0x540 kernel/sched/idle.c:355
 cpu_startup_entry+0x43/0x60 kernel/sched/idle.c:454
 rest_init+0x378/0x3a0 init/main.c:732
 start_kernel+0x392/0x3e0 init/main.c:1190
 x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310
 x86_64_start_kernel+0x137/0x1b0 arch/x86/kernel/head64.c:291
 common_startup_64+0x13e/0x157
 </TASK>