rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { P4324 0-.... } 2639 jiffies s: 945 root: 0x1/T
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4399 Comm: syz.4.15 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:__lock_is_held kernel/locking/lockdep.c:5416 [inline]
RIP: 0010:lock_is_held_type+0xb4/0x190 kernel/locking/lockdep.c:5721
Code: df 49 81 c7 e0 0a 00 00 45 31 e4 49 83 fc 31 73 24 4c 89 ff 4c 89 f6 e8 2a 02 00 00 85 c0 75 2a 49 ff c4 48 63 83 d8 0a 00 00 <49> 83 c7 28 49 39 c4 7c d8 eb 11 48 c7 c7 60 bb 9f 8c 4c 89 e6 e8
RSP: 0018:ffffc90000007738 EFLAGS: 00000006
RAX: 0000000000000006 RBX: ffff8880301d8000 RCX: 0000000000000000
RDX: 0000000000000100 RSI: ffff8880558298d0 RDI: ffff8880301d8ba8
RBP: 00000000ffffffff R08: 0001000000000000 R09: 0030004000060003
R10: dffffc0000000000 R11: fffffbfff2161e49 R12: 0000000000000006
R13: 0000000000000246 R14: ffff8880558298d0 R15: ffff8880301d8ba8
FS:  00007f8038f976c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000012000 CR3: 000000001bfca000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __rhashtable_lookup include/linux/rhashtable.h:594 [inline]
 rhltable_lookup+0x155/0x7a0 include/linux/rhashtable.h:688
 sta_info_hash_lookup net/mac80211/sta_info.c:195 [inline]
 sta_info_get_bss+0x122/0x320 net/mac80211/sta_info.c:232
 ieee80211_rx_for_interface+0xde/0x370 net/mac80211/rx.c:5006
 __ieee80211_rx_handle_packet net/mac80211/rx.c:5187 [inline]
 ieee80211_rx_list+0x25fd/0x2e40 net/mac80211/rx.c:5317
 ieee80211_rx_napi+0x1aa/0x3c0 net/mac80211/rx.c:5340
 ieee80211_rx include/net/mac80211.h:4849 [inline]
 ieee80211_handle_queued_frames+0x104/0x1a0 net/mac80211/main.c:317
 tasklet_action_common+0x2d0/0x460 kernel/softirq.c:827
 handle_softirqs+0x291/0x910 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:lock_acquire+0x225/0x4a0 kernel/locking/lockdep.c:5682
Code: f7 84 24 80 00 00 00 00 02 00 00 43 c6 44 3d 04 f8 0f 85 f0 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 44 3d 00 00 00 00 00 43 c7 44 3d 08 00 00 00 00 65 48 8b 04
RSP: 0018:ffffc90004caf2e0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 43f746ba08425000
RDX: 0000000000000000 RSI: ffffffff8a8c2a20 RDI: ffffffff8adf68a0
RBP: ffffc90004caf3e8 R08: dffffc0000000000 R09: 1ffffffff2161e48
R10: dffffc0000000000 R11: fffffbfff2161e49 R12: 0000000000000000
R13: 1ffff92000995e68 R14: 0000000000000246 R15: dffffc0000000000
 rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 rcu_read_lock include/linux/rcupdate.h:791 [inline]
 trace_call_bpf+0xe0/0x6b0 kernel/trace/bpf_trace.c:134
 perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10037
 perf_trace_lock_acquire+0x342/0x3f0 include/trace/events/lock.h:24
 trace_lock_acquire include/trace/events/lock.h:24 [inline]
 lock_acquire+0x452/0x4a0 kernel/locking/lockdep.c:5649
 rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
 rcu_read_lock include/linux/rcupdate.h:791 [inline]
 percpu_ref_put_many include/linux/percpu-refcount.h:330 [inline]
 percpu_ref_put+0x35/0x180 include/linux/percpu-refcount.h:351
 css_put include/linux/cgroup.h:407 [inline]
 __mem_cgroup_charge+0x52/0x80 mm/memcontrol.c:6951
 mem_cgroup_charge include/linux/memcontrol.h:672 [inline]
 shmem_add_to_page_cache+0x8d7/0x1c90 mm/shmem.c:708
 shmem_get_folio_gfp+0x1663/0x35e0 mm/shmem.c:1971
 shmem_get_folio mm/shmem.c:2072 [inline]
 shmem_write_begin+0xee/0x3f0 mm/shmem.c:2556
 generic_perform_write+0x2fa/0x5c0 mm/filemap.c:3862
 __generic_file_write_iter+0x148/0x2a0 mm/filemap.c:3960
 generic_file_write_iter+0xab/0x2e0 mm/filemap.c:3989
 call_write_iter include/linux/fs.h:2271 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x482/0x9a0 fs/read_write.c:584
 ksys_write+0x14d/0x260 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f803819e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8038f97028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f8038425fa0 RCX: 00007f803819e159
RDX: 00000000fffffeff RSI: 00002000000005c0 RDI: 0000000000000003
RBP: 00007f803823506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8038426038 R14: 00007f8038425fa0 R15: 00007ffcaadc37d8
 </TASK>