rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2896 jiffies s: 8301 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 PID: 4862 Comm: syz.7.70 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:__kasan_check_read+0x6/0x10 mm/kasan/shadow.c:31
Code: 41 5f 5d c3 48 c7 c7 aa 37 61 8c eb 0a 48 c7 c7 9d da 45 8c 48 89 de e8 d8 98 50 08 31 ed eb d7 00 00 cc cc 89 f6 48 8b 0c 24 <31> d2 e9 a3 ec ff ff 0f 1f 00 89 f6 48 8b 0c 24 ba 01 00 00 00 e9
RSP: 0018:ffffc90000006218 EFLAGS: 00000002
RAX: 0000000000000008 RBX: ffff88802b603c00 RCX: ffffffff8164fb84
RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff90aff248
RBP: 0000000000000001 R08: dffffc0000000000 R09: 1ffffffff215fe49
R10: dffffc0000000000 R11: fffffbfff215fe4a R12: 0000000000000002
R13: dffffc0000000000 R14: ffff88802b604848 R15: 0000000000000049
FS:  00007ff9691f66c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000100000000 CR3: 0000000050b90000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 instrument_atomic_read include/linux/instrumented.h:72 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 hlock_class kernel/locking/lockdep.c:228 [inline]
 mark_lock+0x94/0x320 kernel/locking/lockdep.c:4606
 mark_usage kernel/locking/lockdep.c:4511 [inline]
 __lock_acquire+0xbda/0x7d10 kernel/locking/lockdep.c:5003
 lock_acquire+0x1bb/0x4a0 kernel/locking/lockdep.c:5662
 seqcount_lockdep_reader_access+0xcd/0x1d0 include/linux/seqlock.h:102
 ktime_get+0x31/0x270 kernel/time/timekeeping.c:846
 clockevents_program_event+0xe2/0x310 kernel/time/clockevents.c:326
 hrtimer_interrupt+0x59d/0x9c0 kernel/time/hrtimer.c:1890
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1107 [inline]
 __sysvec_apic_timer_interrupt+0x153/0x5a0 arch/x86/kernel/apic/apic.c:1124
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0x4d/0xc0 arch/x86/kernel/apic/apic.c:1118
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:mac80211_hwsim_addr_iter+0x0/0x1a0 drivers/net/wireless/mac80211_hwsim.c:1211
Code: 14 e8 64 0c 85 fb 48 8b 7c 24 08 be 01 00 00 00 e8 95 79 2e 02 89 e8 48 83 c4 18 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 40 00 <55> 41 57 41 56 41 55 41 54 53 49 89 d6 49 89 f7 48 89 fb e8 28 0c
RSP: 0018:ffffc90000006968 EFLAGS: 00000246
RAX: ffffffff89b46d30 RBX: 0000000000000000 RCX: ffff88802b603c00
RDX: ffff8880767ae760 RSI: ffff8880767aeb3c RDI: ffffc90000006ae0
RBP: 0000000000000002 R08: ffff8880767ad5bf R09: 1ffff1100ecf5ab7
R10: dffffc0000000000 R11: ffffed100ecf5ab8 R12: ffff888078e0a930
R13: ffff8880767acc80 R14: ffff8880767ae760 R15: 0000000000000001
 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:788
 ieee80211_iterate_active_interfaces_atomic+0xd7/0x170 net/mac80211/util.c:824
 mac80211_hwsim_addr_match drivers/net/wireless/mac80211_hwsim.c:1247 [inline]
 mac80211_hwsim_tx_frame_no_nl+0xdaf/0x12c0 drivers/net/wireless/mac80211_hwsim.c:1734
 mac80211_hwsim_tx+0x18e9/0x2650 drivers/net/wireless/mac80211_hwsim.c:1940
 drv_tx net/mac80211/driver-ops.h:35 [inline]
 ieee80211_tx_frags+0x3f4/0x8d0 net/mac80211/tx.c:1773
 __ieee80211_tx+0x21b/0x4e0 net/mac80211/tx.c:1827
 ieee80211_tx+0x30f/0x460 net/mac80211/tx.c:2009
 __ieee80211_subif_start_xmit+0x107e/0x32a0 net/mac80211/tx.c:4277
 ieee80211_subif_start_xmit+0xf1/0x4b0 net/mac80211/tx.c:4469
 __netdev_start_xmit include/linux/netdevice.h:4894 [inline]
 netdev_start_xmit include/linux/netdevice.h:4908 [inline]
 xmit_one net/core/dev.c:3695 [inline]
 dev_hard_start_xmit+0x262/0x870 net/core/dev.c:3711
 sch_direct_xmit+0x25a/0x4b0 net/sched/sch_generic.c:345
 __dev_xmit_skb net/core/dev.c:3932 [inline]
 __dev_queue_xmit+0x1771/0x37c0 net/core/dev.c:4337
 dev_queue_xmit include/linux/netdevice.h:3051 [inline]
 neigh_hh_output include/net/neighbour.h:529 [inline]
 neigh_output include/net/neighbour.h:543 [inline]
 ip6_finish_output2+0xd9f/0x15d0 net/ipv6/ip6_output.c:138
 dst_output include/net/dst.h:453 [inline]
 NF_HOOK include/linux/netfilter.h:302 [inline]
 ndisc_send_skb+0xbf1/0x14e0 net/ipv6/ndisc.c:513
 addrconf_rs_timer+0x2d1/0x630 net/ipv6/addrconf.c:3979
 call_timer_fn+0x1ac/0x670 kernel/time/timer.c:1701
 expire_timers kernel/time/timer.c:1752 [inline]
 __run_timers+0x53e/0x800 kernel/time/timer.c:2023
 run_timer_softirq+0x63/0xf0 kernel/time/timer.c:2036
 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:___slab_alloc+0x393/0x1240 mm/slub.c:3107
Code: 48 c7 44 24 70 00 00 00 00 9c 8f 44 24 70 f7 44 24 70 00 02 00 00 0f 85 de 02 00 00 f7 c5 00 02 00 00 74 01 fb 49 83 7d 18 00 <0f> 84 6c 05 00 00 48 c7 44 24 70 00 00 00 00 9c 8f 44 24 70 48 8b
RSP: 0018:ffffc90003ed7b00 EFLAGS: 00000286
RAX: 366d7d25a5f8bc00 RBX: ffff88801744c140 RCX: 366d7d25a5f8bc00
RDX: dffffc0000000000 RSI: ffffffff8a8c1aa0 RDI: ffffffff8adf2060
RBP: 0000000000000246 R08: ffffffff8e2029ef R09: 1ffffffff1c4053d
R10: dffffc0000000000 R11: fffffbfff1c4053e R12: ffff88802b603c00
R13: ffff8880b8e3ec20 R14: ffffffff7fff0000 R15: ffff8880b8e3ec40
 __slab_alloc mm/slub.c:3240 [inline]
 slab_alloc_node mm/slub.c:3325 [inline]
 __kmem_cache_alloc_node+0x1a0/0x260 mm/slub.c:3398
 __do_kmalloc_node mm/slab_common.c:935 [inline]
 __kmalloc_node+0xa0/0x240 mm/slab_common.c:943
 kmalloc_node include/linux/slab.h:589 [inline]
 __bpf_map_area_alloc kernel/bpf/syscall.c:328 [inline]
 bpf_map_area_alloc+0x47/0xe0 kernel/bpf/syscall.c:341
 htab_map_alloc+0x75/0x1110 kernel/bpf/hashtab.c:481
 find_and_alloc_map kernel/bpf/syscall.c:133 [inline]
 map_create+0x534/0x1000 kernel/bpf/syscall.c:1149
 __sys_bpf+0x38b/0x780 kernel/bpf/syscall.c:5013
 __do_sys_bpf kernel/bpf/syscall.c:5135 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5133 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5133
 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: 0033:0x7ff96af9ce59
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:00007ff9691f6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007ff96b215fa0 RCX: 00007ff96af9ce59
RDX: 0000000000000050 RSI: 0000200000000200 RDI: 0000000000000000
RBP: 00007ff96b032d6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ff96b216038 R14: 00007ff96b215fa0 R15: 00007ffc848bc598
 </TASK>