------------[ cut here ]------------ WARNING: CPU: 1 PID: 12770 at net/mac80211/tx.c:5031 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline] WARNING: CPU: 1 PID: 12770 at net/mac80211/tx.c:5031 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442 Modules linked in: CPU: 1 PID: 12770 Comm: syz.5.1618 Not tainted 6.6.102-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:5031 [inline] RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442 Code: 24 4c 89 e7 e8 fe 37 d5 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 89 12 98 f7 0f 0b e9 f6 f7 ff ff e8 7d 12 98 f7 <0f> 0b e9 48 fb ff ff e8 71 12 98 f7 48 c7 c7 c0 00 24 8e 4c 89 e6 RSP: 0018:ffffc900001f0a18 EFLAGS: 00010246 RAX: ffffffff89ed78a3 RBX: ffffffff89ed66a6 RCX: ffff88801877bc00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff88801877bc00 R09: 0000000000000003 R10: 0000000000000007 R11: 0000000000000100 R12: ffff888068ef63c0 R13: dffffc0000000000 R14: ffff888068ef68b0 R15: ffff88805f75e824 FS: 00007faf55e046c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000e41030 CR3: 000000002d53a000 CR4: 00000000003506e0 Call Trace: ieee80211_beacon_get_tim+0xb8/0x560 net/mac80211/tx.c:5569 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:__unix_dgram_recvmsg+0x108/0xd60 net/unix/af_unix.c:-1 Code: e8 6d d0 62 f8 44 89 f8 83 e0 01 75 50 48 89 5c 24 78 44 89 fe 83 e6 40 31 ff e8 53 d0 62 f8 44 89 f8 83 e0 40 4c 89 74 24 28 <4c> 89 6c 24 38 44 89 7c 24 34 75 31 e8 87 cc 62 f8 49 8d 9e 50 04 RSP: 0018:ffffc9000e8bf700 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff888078ad6600 RCX: 0000000000000002 RDX: ffff88801877bc00 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000e8bf898 R08: ffffc9000e8bf9ff R09: 0000000000000000 R10: ffffc9000e8bf980 R11: fffff52001d17f40 R12: dffffc0000000000 R13: 1ffff92001d17ef0 R14: ffff888024d38800 R15: 0000000000000002 sock_recvmsg_nosec+0x82/0xd0 net/socket.c:1046 ____sys_recvmsg+0x49b/0x5b0 net/socket.c:2812 ___sys_recvmsg+0x1b6/0x510 net/socket.c:2856 do_recvmmsg+0x360/0x7d0 net/socket.c:2950 __sys_recvmmsg net/socket.c:3029 [inline] __do_sys_recvmmsg net/socket.c:3052 [inline] __se_sys_recvmmsg net/socket.c:3045 [inline] __x64_sys_recvmmsg+0x191/0x240 net/socket.c:3045 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: 0033:0x7faf54f8ebe9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007faf55e04038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007faf551b6090 RCX: 00007faf54f8ebe9 RDX: 03fffffffffffeda RSI: 00002000000000c0 RDI: 0000000000000004 RBP: 00007faf55011e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 00007faf551b6128 R14: 00007faf551b6090 R15: 00007ffdf7e2bce8 ---------------- Code disassembly (best guess): 0: e8 6d d0 62 f8 call 0xf862d072 5: 44 89 f8 mov %r15d,%eax 8: 83 e0 01 and $0x1,%eax b: 75 50 jne 0x5d d: 48 89 5c 24 78 mov %rbx,0x78(%rsp) 12: 44 89 fe mov %r15d,%esi 15: 83 e6 40 and $0x40,%esi 18: 31 ff xor %edi,%edi 1a: e8 53 d0 62 f8 call 0xf862d072 1f: 44 89 f8 mov %r15d,%eax 22: 83 e0 40 and $0x40,%eax 25: 4c 89 74 24 28 mov %r14,0x28(%rsp) * 2a: 4c 89 6c 24 38 mov %r13,0x38(%rsp) <-- trapping instruction 2f: 44 89 7c 24 34 mov %r15d,0x34(%rsp) 34: 75 31 jne 0x67 36: e8 87 cc 62 f8 call 0xf862ccc2 3b: 49 rex.WB 3c: 8d .byte 0x8d 3d: 9e sahf 3e: 50 push %rax 3f: 04 .byte 0x4