rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-.... } 2651 jiffies s: 33309 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 11882 Comm: syz.3.2387 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:check_preemption_disabled+0x18/0x110 lib/smp_processor_id.c:14
Code: cc cc 48 c7 c7 c0 12 df 8a 48 c7 c6 00 13 df 8a eb 00 55 41 57 41 56 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 <65> 8b 05 01 1f d4 75 65 8b 0d a2 74 d4 75 f7 c1 ff ff ff 7f 74 1f
RSP: 0018:ffffc900001e0720 EFLAGS: 00000082
RAX: 43dd2a49d365bd00 RBX: ffff888076a9bb80 RCX: 43dd2a49d365bd00
RDX: ffff888076a9bb80 RSI: ffffffff8a8c1e00 RDI: ffffffff8adf1320
RBP: 00000000ffffffff R08: dffffc0000000000 R09: 1ffffffff215f248
R10: dffffc0000000000 R11: fffffbfff215f249 R12: ffffffff8cb7fca0
R13: 0000000000000046 R14: ffffffff8cb2d5e0 R15: 00000000ffffffff
FS:  00007f4b869fc6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c27433d CR3: 0000000029ecf000 CR4: 00000000003506e0
DR0: 0000200000000300 DR1: 0000200000000300 DR2: 0000200000000300
DR3: 0000200000000300 DR6: 00000000ffff0ff1 DR7: 0000000000000600
Call Trace:
 <IRQ>
 lockdep_recursion_inc kernel/locking/lockdep.c:462 [inline]
 lock_is_held_type+0x75/0x190 kernel/locking/lockdep.c:5704
 bpf_prog_run_array include/linux/bpf.h:1658 [inline]
 trace_call_bpf+0x1f2/0x6b0 kernel/trace/bpf_trace.c:135
 perf_trace_run_bpf_submit+0x79/0x1c0 kernel/events/core.c:10027
 perf_trace_preemptirq_template+0x268/0x320 include/trace/events/preemptirq.h:14
 trace_irq_enable_rcuidle+0xd3/0x140 include/trace/events/preemptirq.h:40
 trace_hardirqs_on+0x24/0x40 kernel/trace/trace_preemptirq.c:44
 asm_sysvec_irq_work+0x16/0x20 arch/x86/include/asm/idtentry.h:728
RIP: 0010:rcu_read_unlock_special+0x7f/0x510 kernel/rcu/tree_plugin.h:685
Code: eb 03 48 b8 f1 f1 f1 f1 f8 f2 f2 f2 4a 89 04 2b 42 c7 44 2b 08 f8 f3 f3 f3 65 44 8b 35 d2 33 95 7e 41 f7 c6 00 00 f0 00 74 40 <48> c7 44 24 40 0e 36 e0 45 4a c7 04 2b 00 00 00 00 42 c7 44 2b 08
RSP: 0018:ffffc900001e0ac0 EFLAGS: 00000206
RAX: 43dd2a49d365bd00 RBX: 1ffff9200003c160 RCX: 43dd2a49d365bd00
RDX: dffffc0000000000 RSI: ffffffff8a8c1120 RDI: ffffffff8adf1320
RBP: ffffc900001e0bb0 R08: ffffffff90af9267 R09: 1ffffffff215f24c
R10: dffffc0000000000 R11: fffffbfff215f24d R12: 0000000000000246
R13: dffffc0000000000 R14: ffff8880b8f3b900 R15: 0000000000000002
 __rcu_read_unlock+0x78/0xd0 kernel/rcu/tree_plugin.h:426
 rcu_read_unlock include/linux/rcupdate.h:823 [inline]
 ieee80211_iterate_active_interfaces_atomic+0x156/0x170 net/mac80211/util.c:826
 mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
 __run_hrtimer kernel/time/hrtimer.c:1747 [inline]
 __hrtimer_run_queues+0x54a/0xd50 kernel/time/hrtimer.c:1811
 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1828
 handle_softirqs+0x2a1/0x930 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:mpihelp_submul_1+0xa4/0x1a0 lib/mpi/generic_mpih-mul3.c:36
Code: 4c 89 f7 e8 ae 76 9d fd 49 8b 06 41 89 c5 48 89 c5 48 c1 ed 20 4c 89 eb 48 8b 4c 24 08 48 0f af d9 48 8b 44 24 10 4c 0f af e8 <49> 89 ee 4c 0f af f1 48 0f af e8 48 89 d8 48 c1 e8 20 4d 01 f5 49
RSP: 0018:ffffc90003826a98 EFLAGS: 00000202
RAX: 000000003b61675c RBX: 47b5fefdb772ac42 RCX: 00000000e3eb669e
RDX: ffffc9000d069000 RSI: 00000000000356e6 RDI: 00000000000356e7
RBP: 000000000f07b6ab R08: ffff888076a9bb80 R09: 0000000000000003
R10: 0000000000000002 R11: 0000000000000002 R12: 058fbfddc17614fa
R13: 12aedb8c3c17d064 R14: ffff888024993440 R15: 1ffff1100b30501b
 mpihelp_divrem+0x1006/0x10f0 lib/mpi/mpih-div.c:353
 mpi_powm+0x13c4/0x2360 lib/mpi/mpi-pow.c:205
 _rsa_enc crypto/rsa.c:38 [inline]
 rsa_enc+0x28f/0x3c0 crypto/rsa.c:114
 crypto_akcipher_encrypt include/crypto/akcipher.h:296 [inline]
 pkcs1pad_verify+0x41b/0x5f0 crypto/rsa-pkcs1pad.c:559
 crypto_akcipher_verify include/crypto/akcipher.h:370 [inline]
 public_key_verify_signature+0x876/0xd40 crypto/asymmetric_keys/public_key.c:460
 pkcs7_validate_trust_one crypto/asymmetric_keys/pkcs7_trust.c:115 [inline]
 pkcs7_validate_trust+0x4a7/0x650 crypto/asymmetric_keys/pkcs7_trust.c:170
 verify_pkcs7_message_sig+0x192/0x2a0 certs/system_keyring.c:272
 verify_pkcs7_signature+0x66/0x90 certs/system_keyring.c:325
 regdb_has_valid_signature net/wireless/reg.c:821 [inline]
 valid_regdb+0x1e7/0x5f0 net/wireless/reg.c:865
 reg_reload_regdb+0xef/0x490 net/wireless/reg.c:1120
 genl_family_rcv_msg_doit+0x22a/0x330 net/netlink/genetlink.c:756
 genl_family_rcv_msg net/netlink/genetlink.c:833 [inline]
 genl_rcv_msg+0x604/0x790 net/netlink/genetlink.c:850
 netlink_rcv_skb+0x1fb/0x450 net/netlink/af_netlink.c:2511
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:861
 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
 netlink_unicast+0x74d/0x8d0 net/netlink/af_netlink.c:1344
 netlink_sendmsg+0x8ad/0xbd0 net/netlink/af_netlink.c:1872
 sock_sendmsg_nosec net/socket.c:718 [inline]
 __sock_sendmsg net/socket.c:730 [inline]
 ____sys_sendmsg+0x5be/0x970 net/socket.c:2518
 ___sys_sendmsg+0x2a2/0x360 net/socket.c:2572
 __sys_sendmsg net/socket.c:2601 [inline]
 __do_sys_sendmsg net/socket.c:2610 [inline]
 __se_sys_sendmsg+0x1bb/0x2a0 net/socket.c:2608
 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: 0033:0x7f4b85b9cdd9
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:00007f4b869fc028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f4b85e15fa0 RCX: 00007f4b85b9cdd9
RDX: 0000000000000010 RSI: 0000200000000000 RDI: 0000000000000006
RBP: 00007f4b85c32d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f4b85e16038 R14: 00007f4b85e15fa0 R15: 00007ffe055ee0f8
 </TASK>