------------[ cut here ]------------
WARNING: CPU: 1 PID: 8372 at net/mac80211/tx.c:4944 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
WARNING: CPU: 1 PID: 8372 at net/mac80211/tx.c:4944 __ieee80211_beacon_get+0x1952/0x1f50 net/mac80211/tx.c:5265
Modules linked in:
CPU: 1 PID: 8372 Comm: syz.0.1178 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1952/0x1f50 net/mac80211/tx.c:5265
Code: ff ff ff e8 00 41 e4 f7 0f 0b 48 8b 7c 24 20 e8 44 ae 7f fe e9 dd e9 ff ff e8 ea 40 e4 f7 0f 0b e9 f1 ee ff ff e8 de 40 e4 f7 <0f> 0b e9 61 f2 ff ff e8 d2 40 e4 f7 48 c7 c7 f0 7a fa 8d 4c 89 f6
RSP: 0018:ffffc900001e08a0 EFLAGS: 00010246
RAX: ffffffff899c8f42 RBX: 0000000000000000 RCX: ffff8880279e1dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e0aa8 R08: ffff8880279e1dc0 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: 1ffff9200003c12c
R13: dffffc0000000000 R14: ffff8880760be258 R15: ffff88802953f000
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3c64af CR3: 000000005b7af000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0x5b/0x4d0 net/mac80211/tx.c:5352
ieee80211_beacon_get include/net/mac80211.h:5264 [inline]
mac80211_hwsim_beacon_tx+0x21c/0xae0 drivers/net/wireless/mac80211_hwsim.c:2091
__iterate_interfaces+0x243/0x500 net/mac80211/util.c:788
ieee80211_iterate_active_interfaces_atomic+0xd7/0x170 net/mac80211/util.c:824
mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
__run_hrtimer kernel/time/hrtimer.c:1752 [inline]
__hrtimer_run_queues+0x554/0xd60 kernel/time/hrtimer.c:1816
hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1833
handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x12f/0x220 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
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: f5 ff 0f 1f 00 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 8e 18 42 f7 48 89 df e8 e6 dd 42 f7 e8 61 d1 65 f7 fb bf 01 00 00 00 46 5b 36 f7 65 8b 05 67 14 e1 75 85 c0 74 02 5b c3 e8 b4 25 df
RSP: 0018:ffffc90003b3f2d8 EFLAGS: 00000286
RAX: 2577760b3bf90b00 RBX: ffff888056256870 RCX: 2577760b3bf90b00
RDX: dffffc0000000000 RSI: ffffffff8a8c0300 RDI: 0000000000000001
RBP: ffffc90003b3f590 R08: dffffc0000000000 R09: fffffbfff215c24a
R10: fffffbfff215c24a R11: 1ffffffff215c249 R12: dffffc0000000000
R13: 1ffff1100ac4ad0d R14: ffff888056256868 R15: ffff888056256870
spin_unlock_irq include/linux/spinlock.h:401 [inline]
filemap_remove_folio+0xf5/0x2c0 mm/filemap.c:256
truncate_inode_folio+0x59/0x70 mm/truncate.c:195
shmem_undo_range+0x4d2/0x2050 mm/shmem.c:942
shmem_truncate_range mm/shmem.c:1062 [inline]
shmem_evict_inode+0x248/0xa40 mm/shmem.c:1171
evict+0x485/0x870 fs/inode.c:705
__dentry_kill+0x431/0x650 fs/dcache.c:611
dentry_kill+0xb8/0x290 fs/dcache.c:-1
dput+0xfa/0x1d0 fs/dcache.c:918
__fput+0x5e0/0x920 fs/file_table.c:328
task_work_run+0x1ca/0x250 kernel/task_work.c:203
exit_task_work include/linux/task_work.h:39 [inline]
do_exit+0x93e/0x2400 kernel/exit.c:880
do_group_exit+0x217/0x2d0 kernel/exit.c:1022
get_signal+0x1272/0x1350 kernel/signal.c:2871
arch_do_signal_or_restart+0xb0/0x1230 arch/x86/kernel/signal.c:871
exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd7f778ebe9
Code: Unable to access opcode bytes at 0x7fd7f778ebbf.
RSP: 002b:00007fd7f85a80e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fd7f79c6278 RCX: 00007fd7f778ebe9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd7f79c6278
RBP: 00007fd7f79c6270 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd7f79c6308 R14: 00007fff363b1120 R15: 00007fff363b1208
----------------
Code disassembly (best guess), 2 bytes skipped:
0: 0f 1f 00 nopl (%rax)
3: 53 push %rbx
4: 48 89 fb mov %rdi,%rbx
7: 48 83 c7 18 add $0x18,%rdi
b: 48 8b 74 24 08 mov 0x8(%rsp),%rsi
10: e8 8e 18 42 f7 call 0xf74218a3
15: 48 89 df mov %rbx,%rdi
18: e8 e6 dd 42 f7 call 0xf742de03
1d: e8 61 d1 65 f7 call 0xf765d183
22: fb sti
23: bf 01 00 00 00 mov $0x1,%edi
* 28: e8 46 5b 36 f7 call 0xf7365b73 <-- trapping instruction
2d: 65 8b 05 67 14 e1 75 mov %gs:0x75e11467(%rip),%eax # 0x75e1149b
34: 85 c0 test %eax,%eax
36: 74 02 je 0x3a
38: 5b pop %rbx
39: c3 ret
3a: e8 .byte 0xe8
3b: b4 25 mov $0x25,%ah
3d: df .byte 0xdf