------------[ cut here ]------------
WARNING: net/mac80211/tx.c:5024 at __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5024 [inline], CPU#1: syz.6.572/8051
WARNING: net/mac80211/tx.c:5024 at __ieee80211_beacon_get+0x125d/0x1630 net/mac80211/tx.c:5453, CPU#1: syz.6.572/8051
Modules linked in:
CPU: 1 UID: 0 PID: 8051 Comm: syz.6.572 Not tainted 6.16.0-rc2-next-20250616-syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5024 [inline]
RIP: 0010:__ieee80211_beacon_get+0x125d/0x1630 net/mac80211/tx.c:5453
Code: e7 e8 27 f2 2f f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 78 fe ff ff e8 92 bf d6 f6 90 0f 0b 90 e9 e0 f7 ff ff e8 84 bf d6 f6 90 <0f> 0b 90 e9 38 fb ff ff e8 76 bf d6 f6 48 c7 c7 a0 5c 79 8f 4c 89
RSP: 0018:ffffc90000a089f8 EFLAGS: 00010246
RAX: ffffffff8ae9aaac RBX: ffffffff8ae99886 RCX: ffff888026b59e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888026b59e00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff8880555c6500
R13: dffffc0000000000 R14: ffff8880555c69d0 R15: ffff8880603df424
FS: 0000000000000000(0000) GS:ffff888125d40000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f495e1a1f70 CR3: 0000000069a08000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 00000000a0c2b1ef
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0xb4/0x2b0 net/mac80211/tx.c:5580
ieee80211_beacon_get include/net/mac80211.h:5638 [inline]
mac80211_hwsim_beacon_tx+0x3ce/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2319
__iterate_interfaces+0x2a8/0x590 net/mac80211/util.c:761
ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:797
mac80211_hwsim_beacon+0xbb/0x1c0 drivers/net/wireless/virtual/mac80211_hwsim.c:2353
__run_hrtimer kernel/time/hrtimer.c:1761 [inline]
__hrtimer_run_queues+0x529/0xc60 kernel/time/hrtimer.c:1825
hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1842
handle_softirqs+0x283/0x870 kernel/softirq.c:579
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680
irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 9a 08 32 f6 48 89 df e8 f2 9f 32 f6 e8 9d c0 5b f6 fb bf 01 00 00 00 22 9a 24 f6 65 8b 05 eb c3 31 07 85 c0 74 07 5b e9 51 4c 00 00
RSP: 0018:ffffc90002f77258 EFLAGS: 00000282
RAX: 5489738cbae66b00 RBX: ffff888031bd9740 RCX: 5489738cbae66b00
RDX: 0000000000000006 RSI: ffffffff8d98bd8e RDI: 0000000000000001
RBP: ffffc90002f77670 R08: ffffffff8fa14ff7 R09: 1ffffffff1f429fe
R10: dffffc0000000000 R11: fffffbfff1f429ff R12: dffffc0000000000
R13: 1ffff1100637b2e7 R14: ffff888031bd9738 R15: ffff888031bd9740
spin_unlock_irq include/linux/spinlock.h:401 [inline]
filemap_remove_folio+0xee/0x1f0 mm/filemap.c:254
truncate_inode_folio+0x5d/0x70 mm/truncate.c:176
shmem_undo_range+0x3a9/0x14b0 mm/shmem.c:1121
shmem_truncate_range mm/shmem.c:1237 [inline]
shmem_evict_inode+0x272/0xa70 mm/shmem.c:1365
evict+0x501/0x9c0 fs/inode.c:810
__dentry_kill+0x209/0x660 fs/dcache.c:669
dput+0x19f/0x2b0 fs/dcache.c:911
__fput+0x68e/0xa70 fs/file_table.c:476
task_work_run+0x1d4/0x260 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0x6b5/0x22e0 kernel/exit.c:959
do_group_exit+0x21c/0x2d0 kernel/exit.c:1100
get_signal+0x1286/0x1340 kernel/signal.c:3034
arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop+0x75/0x110 kernel/entry/common.c:111
exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline]
do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd3c6f8e929
Code: Unable to access opcode bytes at 0x7fd3c6f8e8ff.
RSP: 002b:00007fd3c7d46038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: 0000000000010106 RBX: 00007fd3c71b6080 RCX: 00007fd3c6f8e929
RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007fd3c7010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd3c71b6080 R15: 00007ffe59996b58
----------------
Code disassembly (best guess):
0: 90 nop
1: f3 0f 1e fa endbr64
5: 53 push %rbx
6: 48 89 fb mov %rdi,%rbx
9: 48 83 c7 18 add $0x18,%rdi
d: 48 8b 74 24 08 mov 0x8(%rsp),%rsi
12: e8 9a 08 32 f6 call 0xf63208b1
17: 48 89 df mov %rbx,%rdi
1a: e8 f2 9f 32 f6 call 0xf632a011
1f: e8 9d c0 5b f6 call 0xf65bc0c1
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 22 9a 24 f6 call 0xf6249a51 <-- trapping instruction
2f: 65 8b 05 eb c3 31 07 mov %gs:0x731c3eb(%rip),%eax # 0x731c421
36: 85 c0 test %eax,%eax
38: 74 07 je 0x41
3a: 5b pop %rbx
3b: e9 51 4c 00 00 jmp 0x4c91