------------[ cut here ]------------ WARNING: net/mac80211/tx.c:5024 at __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5024 [inline], CPU#0: syz.3.336/7580 WARNING: net/mac80211/tx.c:5024 at __ieee80211_beacon_get+0x125d/0x1630 net/mac80211/tx.c:5453, CPU#0: syz.3.336/7580 Modules linked in: CPU: 0 UID: 0 PID: 7580 Comm: syz.3.336 Not tainted 6.16.0-rc2-next-20250616-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5024 [inline] RIP: 0010:__ieee80211_beacon_get+0x125d/0x1630 net/mac80211/tx.c:5453 Code: e7 e8 27 f2 2f f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 78 fe ff ff e8 92 bf d6 f6 90 0f 0b 90 e9 e0 f7 ff ff e8 84 bf d6 f6 90 <0f> 0b 90 e9 38 fb ff ff e8 76 bf d6 f6 48 c7 c7 a0 5c 79 8f 4c 89 RSP: 0018:ffffc900000079f8 EFLAGS: 00010246 RAX: ffffffff8ae9aaac RBX: ffffffff8ae99886 RCX: ffff88802f85bc00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff88802f85bc00 R09: 0000000000000003 R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805504a500 R13: dffffc0000000000 R14: ffff88805504a9d0 R15: ffff888033567424 FS: 00007f03f2c846c0(0000) GS:ffff888125c40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c33f1b4 CR3: 000000002f94e000 CR4: 00000000003526f0 DR0: ffffffffffffffff DR1: 0000000000000047 DR2: 0000000000000005 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_beacon_get_tim+0xb4/0x2b0 net/mac80211/tx.c:5580 ieee80211_beacon_get include/net/mac80211.h:5638 [inline] mac80211_hwsim_beacon_tx+0x3ce/0x860 drivers/net/wireless/virtual/mac80211_hwsim.c:2319 __iterate_interfaces+0x2a8/0x590 net/mac80211/util.c:761 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:797 mac80211_hwsim_beacon+0xbb/0x1c0 drivers/net/wireless/virtual/mac80211_hwsim.c:2353 __run_hrtimer kernel/time/hrtimer.c:1761 [inline] __hrtimer_run_queues+0x529/0xc60 kernel/time/hrtimer.c:1825 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1842 handle_softirqs+0x283/0x870 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0xca/0x1f0 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:addr_has_metadata mm/kasan/kasan.h:333 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:177 [inline] RIP: 0010:kasan_check_range+0x47/0x2c0 mm/kasan/generic.c:189 Code: 49 39 f8 0f 82 82 02 00 00 49 b9 00 00 00 00 00 80 ff ff eb 11 cc cc cc f3 0f 1e fa 49 b9 00 00 00 00 00 00 00 ff f3 0f 1e fa <4c> 39 cf 0f 82 58 02 00 00 49 89 ff 49 c1 ef 03 49 ba 00 00 00 00 RSP: 0018:ffffc900033c7448 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffffc900033c74c0 RCX: ffffffff819dad96 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff88807ac9b6f0 RBP: ffffc900033c7530 R08: ffff88807ac9b6f8 R09: ffff800000000000 R10: dffffc0000000000 R11: ffffed100f5936df R12: ffff88802f85bc00 R13: 1ffff92000678e94 R14: ffff88807ac9b6f0 R15: ffff88802f85bc00 instrument_atomic_read_write include/linux/instrumented.h:96 [inline] atomic_long_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:4456 [inline] __mutex_trylock_common+0x146/0x260 kernel/locking/mutex.c:113 __mutex_trylock kernel/locking/mutex.c:136 [inline] __mutex_lock_common kernel/locking/mutex.c:605 [inline] __mutex_lock+0x19d/0xe80 kernel/locking/mutex.c:747 __unix_dgram_recvmsg+0x1e2/0xde0 net/unix/af_unix.c:2500 sock_recvmsg_nosec+0x186/0x1c0 net/socket.c:1017 ____sys_recvmsg+0x3aa/0x460 net/socket.c:2784 ___sys_recvmsg+0x1b5/0x510 net/socket.c:2828 do_recvmmsg+0x307/0x770 net/socket.c:2923 __sys_recvmmsg net/socket.c:2997 [inline] __do_sys_recvmmsg net/socket.c:3020 [inline] __se_sys_recvmmsg net/socket.c:3013 [inline] __x64_sys_recvmmsg+0x190/0x240 net/socket.c:3013 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f03f1d8e929 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:00007f03f2c84038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f03f1fb6080 RCX: 00007f03f1d8e929 RDX: 0000000000010106 RSI: 00002000000000c0 RDI: 0000000000000004 RBP: 00007f03f1e10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f03f1fb6080 R15: 00007ffc7443c658 ---------------- Code disassembly (best guess): 0: 49 39 f8 cmp %rdi,%r8 3: 0f 82 82 02 00 00 jb 0x28b 9: 49 b9 00 00 00 00 00 movabs $0xffff800000000000,%r9 10: 80 ff ff 13: eb 11 jmp 0x26 15: cc int3 16: cc int3 17: cc int3 18: f3 0f 1e fa endbr64 1c: 49 b9 00 00 00 00 00 movabs $0xff00000000000000,%r9 23: 00 00 ff 26: f3 0f 1e fa endbr64 * 2a: 4c 39 cf cmp %r9,%rdi <-- trapping instruction 2d: 0f 82 58 02 00 00 jb 0x28b 33: 49 89 ff mov %rdi,%r15 36: 49 c1 ef 03 shr $0x3,%r15 3a: 49 rex.WB 3b: ba 00 00 00 00 mov $0x0,%edx