------------[ cut here ]------------
WARNING: CPU: 1 PID: 10465 at net/mac80211/tx.c:5021 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5021 [inline]
WARNING: CPU: 1 PID: 10465 at net/mac80211/tx.c:5021 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5432
Modules linked in:
CPU: 1 PID: 10465 Comm: syz-executor Not tainted 6.6.96-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5021 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5432
Code: 24 4c 89 e7 e8 be 86 d5 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 99 f9 96 f7 0f 0b e9 f6 f7 ff ff e8 8d f9 96 f7 <0f> 0b e9 48 fb ff ff e8 81 f9 96 f7 48 c7 c7 20 f9 23 8e 4c 89 e6
RSP: 0018:ffffc900001f0a18 EFLAGS: 00010246
RAX: ffffffff89ee9cd3 RBX: ffffffff89ee8ad6 RCX: ffff88802bf70000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88802bf70000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888061d3e3c0
R13: dffffc0000000000 R14: ffff888061d3e8b0 R15: ffff8880624ddc24
FS: 0000555594636500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559554837d28 CR3: 0000000062e29000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0xb8/0x560 net/mac80211/tx.c:5559
ieee80211_beacon_get include/net/mac80211.h:5438 [inline]
mac80211_hwsim_beacon_tx+0x3c7/0x780 drivers/net/wireless/virtual/mac80211_hwsim.c:2265
__iterate_interfaces+0x243/0x500 net/mac80211/util.c:766
ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:802
mac80211_hwsim_beacon+0xbb/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2295
__run_hrtimer kernel/time/hrtimer.c:1755 [inline]
__hrtimer_run_queues+0x51e/0xc40 kernel/time/hrtimer.c:1819
hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1836
handle_softirqs+0x280/0x820 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0xc7/0x190 kernel/softirq.c:661
irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xa9/0x110 kernel/locking/spinlock.c:194
Code: 74 05 e8 3a e8 13 f7 48 c7 44 24 20 00 00 00 00 9c 8f 44 24 20 f6 44 24 21 02 75 4b f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 82 52 e3 f6 65 8b 05 93 a8 8b 75 85 c0 74 3c 48 c7 04 24 0e 36
RSP: 0018:ffffc90013b7f920 EFLAGS: 00000206
RAX: 0c4aa23a47b3b900 RBX: 0000000000000a06 RCX: 0c4aa23a47b3b900
RDX: dffffc0000000000 RSI: ffffffff8aaab2c0 RDI: 0000000000000001
RBP: ffffc90013b7f9b0 R08: ffffffff90da5527 R09: 1ffffffff21b4aa4
R10: dffffc0000000000 R11: fffffbfff21b4aa5 R12: dffffc0000000000
R13: ffff88813fffa700 R14: ffff88813fffacc0 R15: 1ffff9200276ff24
free_unref_page+0x17e/0x2e0 mm/page_alloc.c:2452
discard_slab mm/slub.c:2122 [inline]
__unfreeze_partials+0x1cf/0x210 mm/slub.c:2662
put_cpu_partial+0x17c/0x250 mm/slub.c:2738
__slab_free+0x31d/0x410 mm/slub.c:3686
qlink_free mm/kasan/quarantine.c:166 [inline]
qlist_free_all+0x75/0xe0 mm/kasan/quarantine.c:185
kasan_quarantine_reduce+0x143/0x160 mm/kasan/quarantine.c:292
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook+0x6e/0x4d0 mm/slab.h:767
slab_alloc_node mm/slub.c:3485 [inline]
slab_alloc mm/slub.c:3493 [inline]
__kmem_cache_alloc_lru mm/slub.c:3500 [inline]
kmem_cache_alloc_lru+0x115/0x2e0 mm/slub.c:3516
alloc_inode_sb include/linux/fs.h:2946 [inline]
shmem_alloc_inode+0x28/0x40 mm/shmem.c:4420
alloc_inode fs/inode.c:261 [inline]
new_inode_pseudo+0x63/0x1d0 fs/inode.c:1049
new_inode+0x22/0x1b0 fs/inode.c:1075
__shmem_get_inode mm/shmem.c:2468 [inline]
shmem_get_inode+0x34f/0xcc0 mm/shmem.c:2540
shmem_symlink+0xa4/0x490 mm/shmem.c:3472
vfs_symlink+0x138/0x2b0 fs/namei.c:4473
do_symlinkat+0x1b2/0x3f0 fs/namei.c:4499
__do_sys_symlinkat fs/namei.c:4515 [inline]
__se_sys_symlinkat fs/namei.c:4512 [inline]
__x64_sys_symlinkat+0x99/0xb0 fs/namei.c:4512
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb33558dea7
Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 0a 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffae576de8 EFLAGS: 00000202 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb33558dea7
RDX: 00007fb335612385 RSI: 00000000ffffff9c RDI: 00007fb335610efc
RBP: 00007fffae576e2c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000071
R13: 0000555594649590 R14: 000000000008186b R15: 00007fffae576e80
----------------
Code disassembly (best guess):
0: 74 05 je 0x7
2: e8 3a e8 13 f7 call 0xf713e841
7: 48 c7 44 24 20 00 00 movq $0x0,0x20(%rsp)
e: 00 00
10: 9c pushf
11: 8f 44 24 20 pop 0x20(%rsp)
15: f6 44 24 21 02 testb $0x2,0x21(%rsp)
1a: 75 4b jne 0x67
1c: f7 c3 00 02 00 00 test $0x200,%ebx
22: 74 01 je 0x25
24: fb sti
25: bf 01 00 00 00 mov $0x1,%edi
* 2a: e8 82 52 e3 f6 call 0xf6e352b1 <-- trapping instruction
2f: 65 8b 05 93 a8 8b 75 mov %gs:0x758ba893(%rip),%eax # 0x758ba8c9
36: 85 c0 test %eax,%eax
38: 74 3c je 0x76
3a: 48 rex.W
3b: c7 .byte 0xc7
3c: 04 24 add $0x24,%al
3e: 0e (bad)
3f: 36 ss