------------[ cut here ]------------ WARNING: CPU: 1 PID: 7066 at net/mac80211/tx.c:4944 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline] WARNING: CPU: 1 PID: 7066 at net/mac80211/tx.c:4944 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5345 Modules linked in: CPU: 1 PID: 7066 Comm: syz-executor Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline] RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5345 Code: 24 4c 89 e7 e8 7e 06 0a f8 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 79 66 d1 f7 0f 0b e9 f6 f7 ff ff e8 6d 66 d1 f7 <0f> 0b e9 48 fb ff ff e8 61 66 d1 f7 48 c7 c7 50 f1 fa 8d 4c 89 e6 RSP: 0000:ffffc900001e0a30 EFLAGS: 00010246 RAX: ffffffff89b10ee3 RBX: ffffffff89b0fce6 RCX: ffff88801f2b1dc0 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff88801f2b1dc0 R09: 0000000000000003 R10: 0000000000000007 R11: 0000000000000100 R12: ffff8880557ae228 R13: dffffc0000000000 R14: ffff8880557ae760 R15: ffff888027e8f824 FS: 00005555714bc500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555714bc4e8 CR3: 000000005cbce000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_beacon_get_tim+0x63/0x4e0 net/mac80211/tx.c:5472 ieee80211_beacon_get include/net/mac80211.h:5335 [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: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 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:lock_release+0x5ab/0x920 kernel/locking/lockdep.c:5686 Code: 00 00 00 f7 84 24 80 00 00 00 00 02 00 00 43 c6 44 2f 04 f8 75 70 f7 44 24 50 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 2f 00 00 00 00 43 c7 44 2f 08 00 00 00 00 65 48 8b 04 25 RSP: 0000:ffffc90003c17a80 EFLAGS: 00000206 RAX: 0000000000000001 RBX: af0e42aa79a570cf RCX: 778f0b6542238500 RDX: 0000000000000001 RSI: ffffffff8a8c22a0 RDI: ffffffff8adf13a0 RBP: ffffc90003c17b90 R08: ffffffff8e1ff42f R09: 1ffffffff1c3fe85 R10: dffffc0000000000 R11: fffffbfff1c3fe86 R12: ffff88801f2b28c8 R13: dffffc0000000000 R14: ffff88801f2b2890 R15: 1ffff92000782f5c __raw_spin_unlock include/linux/spinlock_api_smp.h:141 [inline] _raw_spin_unlock+0x12/0x40 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] wp_page_reuse+0x374/0x670 mm/memory.c:3107 do_wp_page+0x807/0x1680 mm/memory.c:-1 handle_pte_fault mm/memory.c:5047 [inline] __handle_mm_fault mm/memory.c:5171 [inline] handle_mm_fault+0x1d19/0x3ee0 mm/memory.c:5292 do_user_addr_fault+0x51f/0xb10 arch/x86/mm/fault.c:1338 handle_page_fault arch/x86/mm/fault.c:1429 [inline] exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1482 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:608 RIP: 0033:0x7f04a7dca057 Code: 44 00 00 48 83 ec 08 48 89 fa 48 89 f1 31 ff 31 f6 e8 7d 04 02 00 85 c0 75 09 48 83 c4 08 c3 0f 1f 40 00 48 c7 c2 e8 ff ff ff <64> 89 02 b8 ff ff ff ff eb e6 66 2e 0f 1f 84 00 00 00 00 00 0f 1f RSP: 002b:00007ffcdcf8a3e0 EFLAGS: 00010202 RAX: 0000000000000004 RBX: 00000000000000fb RCX: 00005555714bc808 RDX: ffffffffffffffe8 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007ffcdcf8a45c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001388 R13: 00000000000927c0 R14: 0000000000083714 R15: 00007ffcdcf8a4b0 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 f7 add %dh,%bh 4: 84 24 80 test %ah,(%rax,%rax,4) 7: 00 00 add %al,(%rax) 9: 00 00 add %al,(%rax) b: 02 00 add (%rax),%al d: 00 43 c6 add %al,-0x3a(%rbx) 10: 44 2f rex.R (bad) 12: 04 f8 add $0xf8,%al 14: 75 70 jne 0x86 16: f7 44 24 50 00 02 00 testl $0x200,0x50(%rsp) 1d: 00 1e: 74 01 je 0x21 20: fb sti 21: 48 c7 44 24 60 0e 36 movq $0x45e0360e,0x60(%rsp) 28: e0 45 * 2a: 4b c7 04 2f 00 00 00 movq $0x0,(%r15,%r13,1) <-- trapping instruction 31: 00 32: 43 c7 44 2f 08 00 00 movl $0x0,0x8(%r15,%r13,1) 39: 00 00 3b: 65 gs 3c: 48 rex.W 3d: 8b .byte 0x8b 3e: 04 25 add $0x25,%al