------------[ cut here ]------------ WARNING: CPU: 1 PID: 4551 at net/mac80211/tx.c:4934 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4934 [inline] WARNING: CPU: 1 PID: 4551 at net/mac80211/tx.c:4934 __ieee80211_beacon_get+0x1952/0x1f50 net/mac80211/tx.c:5255 Modules linked in: CPU: 1 PID: 4551 Comm: syz-executor146 Not tainted 6.1.138-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4934 [inline] RIP: 0010:__ieee80211_beacon_get+0x1952/0x1f50 net/mac80211/tx.c:5255 Code: ff ff ff e8 d0 45 ec f7 0f 0b 48 8b 7c 24 20 e8 34 9e 7f fe e9 dd e9 ff ff e8 ba 45 ec f7 0f 0b e9 f1 ee ff ff e8 ae 45 ec f7 <0f> 0b e9 61 f2 ff ff e8 a2 45 ec f7 48 c7 c7 b0 96 d9 8d 4c 89 f6 RSP: 0018:ffffc900001e08a0 EFLAGS: 00010246 RAX: ffffffff89948e02 RBX: 0000000000000000 RCX: ffff8880772d8000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900001e0aa8 R08: ffff8880772d8000 R09: 0000000000000003 R10: 0000000000000007 R11: 0000000000000100 R12: 1ffff9200003c12c R13: dffffc0000000000 R14: ffff88806e936258 R15: ffff88801928c200 FS: 00007ff6459956c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000072030 CR3: 000000002ef0c000 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:5342 ieee80211_beacon_get include/net/mac80211.h:5262 [inline] mac80211_hwsim_beacon_tx+0x21c/0xae0 drivers/net/wireless/mac80211_hwsim.c:2086 __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:2142 __run_hrtimer kernel/time/hrtimer.c:1691 [inline] __hrtimer_run_queues+0x522/0xc80 kernel/time/hrtimer.c:1755 hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1772 handle_softirqs+0x2a1/0x920 kernel/softirq.c:578 __do_softirq kernel/softirq.c:612 [inline] invoke_softirq kernel/softirq.c:452 [inline] __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:661 irq_exit_rcu+0x5/0x20 kernel/softirq.c:673 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_irqrestore include/linux/spinlock_api_smp.h:152 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xa5/0x100 kernel/locking/spinlock.c:194 Code: 74 05 e8 ae e3 6d 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 36 5e 3e f7 65 8b 05 37 23 e9 75 85 c0 74 3c 48 c7 04 24 0e 36 RSP: 0018:ffffc90004b8f5c0 EFLAGS: 00000206 RAX: 29efe491a3153a00 RBX: 0000000000000a06 RCX: 29efe491a3153a00 RDX: dffffc0000000000 RSI: ffffffff8a6bfe00 RDI: 0000000000000001 RBP: ffffc90004b8f658 R08: dffffc0000000000 R09: fffffbfff211705d R10: fffffbfff211705d R11: 1ffffffff211705c R12: dffffc0000000000 R13: 1ffff11004cf3b46 R14: ffff88802679d9d0 R15: 1ffff92000971eb8 spin_unlock_irqrestore include/linux/spinlock.h:406 [inline] __skb_try_recv_datagram+0x179/0x4d0 net/core/datagram.c:265 __unix_dgram_recvmsg+0x2d3/0xd50 net/unix/af_unix.c:2427 ____sys_recvmsg+0x292/0x580 net/socket.c:-1 ___sys_recvmsg+0x1b2/0x510 net/socket.c:2780 do_recvmmsg+0x359/0x7d0 net/socket.c:2874 __sys_recvmmsg net/socket.c:2953 [inline] __do_sys_recvmmsg net/socket.c:2976 [inline] __se_sys_recvmmsg net/socket.c:2969 [inline] __x64_sys_recvmmsg+0x18d/0x240 net/socket.c:2969 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7ff6459f7829 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 1a 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff645995218 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007ff645a81438 RCX: 00007ff6459f7829 RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000003 RBP: 00007ff645a81430 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 00007ff645a4e38c R13: 00002000000001c0 R14: 0000200000000200 R15: 0000200000000210 ---------------- Code disassembly (best guess): 0: 74 05 je 0x7 2: e8 ae e3 6d f7 call 0xf76de3b5 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 36 5e 3e f7 call 0xf73e5e65 <-- trapping instruction 2f: 65 8b 05 37 23 e9 75 mov %gs:0x75e92337(%rip),%eax # 0x75e9236d 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