rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 1, t=10502 jiffies, g=12677, q=865 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10497 (4294959488-4294948991), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10498 jiffies! g12677 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R  running task     stack:28752 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5407 [inline]
 __schedule+0xf27/0x5d10 kernel/sched/core.c:6748
 __schedule_loop kernel/sched/core.c:6825 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6840
 schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2581
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2034
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2236
 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
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 5649 Comm: syz-executor.1 Not tainted 6.10.0-syzkaller-ge23dd95cfd06 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:80 [inline]
RIP: 0010:__orc_find+0x95/0x130 arch/x86/kernel/unwind_orc.c:102
Code: e8 80 25 51 00 48 39 dd 72 67 e8 76 25 51 00 48 89 e8 48 29 d8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 4c 8d 3c 83 <4c> 89 fa 48 c1 ea 03 42 0f b6 0c 32 4c 89 fa 83 e2 07 83 c2 03 38
RSP: 0018:ffffc90000006cb8 EFLAGS: 00000203
RAX: 0000000000000008 RBX: ffffffff8ffd3508 RCX: ffffffff813ccb95
RDX: 0000000000000011 RSI: ffffffff813ccbda RDI: 0000000000000005
RBP: ffffffff8ffd354c R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000012 R11: 0000000000000002 R12: ffffffff81e9a022
R13: ffffffff907f830c R14: dffffc0000000000 R15: ffffffff8ffd3528
FS:  00007fc879ca26c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc879ca1f00 CR3: 000000007de64000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 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
 unpoison_slab_object mm/kasan/common.c:312 [inline]
 __kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:338
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3940 [inline]
 slab_alloc_node mm/slub.c:4002 [inline]
 kmem_cache_alloc_noprof+0x121/0x2f0 mm/slub.c:4009
 fill_pool+0x26b/0x5d0 lib/debugobjects.c:169
 debug_objects_fill_pool lib/debugobjects.c:616 [inline]
 debug_object_activate+0x151/0x540 lib/debugobjects.c:705
 debug_rcu_head_queue kernel/rcu/rcu.h:227 [inline]
 kvfree_call_rcu+0x30/0xbe0 kernel/rcu/tree.c:3806
 cfg80211_update_known_bss+0x39f/0x1150 net/wireless/scan.c:1862
 __cfg80211_bss_update+0x1aa/0x24c0 net/wireless/scan.c:1908
 cfg80211_inform_single_bss_data+0x743/0x2080 net/wireless/scan.c:2289
 cfg80211_inform_bss_data+0x205/0x39d0 net/wireless/scan.c:3117
 cfg80211_inform_bss_frame_data+0x271/0x7c0 net/wireless/scan.c:3207
 ieee80211_bss_info_update+0x311/0xab0 net/mac80211/scan.c:226
 ieee80211_scan_rx+0x47c/0xad0 net/mac80211/scan.c:340
 __ieee80211_rx_handle_packet net/mac80211/rx.c:5222 [inline]
 ieee80211_rx_list+0x1be1/0x2e90 net/mac80211/rx.c:5459
 ieee80211_rx_napi+0xdd/0x400 net/mac80211/rx.c:5482
 ieee80211_rx include/net/mac80211.h:5093 [inline]
 ieee80211_handle_queued_frames+0xd5/0x130 net/mac80211/main.c:438
 tasklet_action_common.constprop.0+0x24c/0x3e0 kernel/softirq.c:785
 handle_softirqs+0x216/0x8f0 kernel/softirq.c:554
 do_softirq kernel/softirq.c:455 [inline]
 do_softirq+0xb2/0xf0 kernel/softirq.c:442
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x100/0x120 kernel/softirq.c:382
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 fpregs_unlock arch/x86/include/asm/fpu/api.h:80 [inline]
 restore_fpregs_from_user arch/x86/kernel/fpu/signal.c:331 [inline]
 __fpu_restore_sig+0x634/0x1430 arch/x86/kernel/fpu/signal.c:359
 fpu__restore_sig+0x102/0x180 arch/x86/kernel/fpu/signal.c:493
 restore_sigcontext+0x4ca/0x6a0 arch/x86/kernel/signal_64.c:95
 __do_sys_rt_sigreturn+0x138/0x230 arch/x86/kernel/signal_64.c:263
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc878e7dea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc879ca20c8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fc878fabf80 RCX: 00007fc878e7dea9
RDX: 000000002006b000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fc878eca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc878fabf80 R15: 00007ffe1aa15d28
 </TASK>
sched: RT throttling activated