------------[ cut here ]------------ WARNING: CPU: 0 PID: 6278 at net/mac80211/tx.c:5040 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline] WARNING: CPU: 0 PID: 6278 at net/mac80211/tx.c:5040 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5035 [inline] WARNING: CPU: 0 PID: 6278 at net/mac80211/tx.c:5040 __ieee80211_beacon_get+0x14ac/0x16b0 net/mac80211/tx.c:5469 Modules linked in: CPU: 0 UID: 0 PID: 6278 Comm: syz.0.69 Not tainted 6.14.0-rc7-syzkaller-00074-ga7f2e10ecd8f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline] RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5035 [inline] RIP: 0010:__ieee80211_beacon_get+0x14ac/0x16b0 net/mac80211/tx.c:5469 Code: 00 89 df 44 89 e6 e8 c3 cf e0 f6 44 38 e3 72 a1 e8 d9 d5 e0 f6 48 89 ef e8 81 3b 39 f7 31 ed e9 9c fe ff ff e8 c5 d5 e0 f6 90 <0f> 0b 90 e9 86 f6 ff ff 48 89 c6 48 c7 c7 20 f0 2f 90 48 89 04 24 RSP: 0018:ffffc90000007b70 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8ad913b2 RDX: ffff88805ee02440 RSI: ffffffff8ad91d2b RDI: 0000000000000001 RBP: ffffc90000007c20 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000002 R12: ffff88814d823400 R13: 0000000000000041 R14: ffff88807dc7cd80 R15: ffff88807dc7e9d0 FS: 00007fc46b5fe6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00004000002cc030 CR3: 0000000035bf0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_beacon_get_tim+0xa7/0x280 net/mac80211/tx.c:5596 ieee80211_beacon_get include/net/mac80211.h:5641 [inline] mac80211_hwsim_beacon_tx+0x4ea/0xa10 drivers/net/wireless/virtual/mac80211_hwsim.c:2311 __iterate_interfaces+0x2e5/0x640 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:797 mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2345 __run_hrtimer kernel/time/hrtimer.c:1801 [inline] __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1865 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1882 handle_softirqs+0x213/0x8f0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:lock_acquire.part.0+0x155/0x380 kernel/locking/lockdep.c:5816 Code: b8 ff ff ff ff 65 0f c1 05 50 c8 6b 7e 83 f8 01 0f 85 d0 01 00 00 9c 58 f6 c4 02 0f 85 e5 01 00 00 48 85 ed 0f 85 b6 01 00 00 <48> b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 00 00 00 48 c7 RSP: 0018:ffffc90003497bb8 EFLAGS: 00000206 RAX: 0000000000000046 RBX: 1ffff92000692f78 RCX: ffffffff8195c86e RDX: 0000000000000001 RSI: ffffffff8b6cff80 RDI: ffffffff8bd369a0 RBP: 0000000000000200 R08: 0000000000000000 R09: fffffbfff2dd8d9f R10: ffffffff96ec6cff R11: 0000000000000000 R12: 0000000000000000 R13: ffff88802aeb47e0 R14: 0000000000000000 R15: 0000000000000000 __might_fault mm/memory.c:6839 [inline] __might_fault+0x11b/0x190 mm/memory.c:6832 do_recvmmsg+0x321/0x740 net/socket.c:2936 __sys_recvmmsg net/socket.c:3004 [inline] __do_sys_recvmmsg net/socket.c:3027 [inline] __se_sys_recvmmsg net/socket.c:3020 [inline] __x64_sys_recvmmsg+0x239/0x290 net/socket.c:3020 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc46c38d169 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:00007fc46b5fe038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007fc46c5a6080 RCX: 00007fc46c38d169 RDX: 0000000000010106 RSI: 00004000000000c0 RDI: 0000000000000003 RBP: 00007fc46c40e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007fc46c5a6080 R15: 00007fffd746ff18 ---------------- Code disassembly (best guess): 0: b8 ff ff ff ff mov $0xffffffff,%eax 5: 65 0f c1 05 50 c8 6b xadd %eax,%gs:0x7e6bc850(%rip) # 0x7e6bc85d c: 7e d: 83 f8 01 cmp $0x1,%eax 10: 0f 85 d0 01 00 00 jne 0x1e6 16: 9c pushf 17: 58 pop %rax 18: f6 c4 02 test $0x2,%ah 1b: 0f 85 e5 01 00 00 jne 0x206 21: 48 85 ed test %rbp,%rbp 24: 0f 85 b6 01 00 00 jne 0x1e0 * 2a: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax <-- trapping instruction 31: fc ff df 34: 48 01 c3 add %rax,%rbx 37: 48 c7 03 00 00 00 00 movq $0x0,(%rbx) 3e: 48 rex.W 3f: c7 .byte 0xc7