------------[ cut here ]------------ WARNING: CPU: 1 PID: 4366 at net/mac80211/tx.c:4851 __ieee80211_beacon_get+0x183d/0x2080 net/mac80211/tx.c:5075 Modules linked in: CPU: 1 PID: 4366 Comm: syz-executor127 Not tainted 5.15.173-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4851 [inline] RIP: 0010:__ieee80211_beacon_get+0x183d/0x2080 net/mac80211/tx.c:5075 Code: ff e8 e7 9c aa f7 0f 0b e9 4b fa ff ff e8 db 9c aa f7 0f 0b e9 3b fe ff ff e8 cf 9c aa f7 0f 0b e9 06 ee ff ff e8 c3 9c aa f7 <0f> 0b e9 91 f0 ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 2d ea RSP: 0018:ffffc90000dd0840 EFLAGS: 00010246 RAX: ffffffff89d5d6dd RBX: 0000000000000000 RCX: ffff888029518000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000dd0a70 R08: ffffffff89d5c768 R09: ffffffff89d5c13b R10: 0000000000000003 R11: ffff888029518000 R12: dffffc0000000000 R13: ffff888071b58c80 R14: ffff888071b5a298 R15: 1ffff920001ba118 FS: 00007fa1de2d86c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002020a030 CR3: 0000000022d3e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_beacon_get_tim+0xb7/0x950 net/mac80211/tx.c:5194 ieee80211_beacon_get include/net/mac80211.h:4981 [inline] mac80211_hwsim_beacon_tx+0xe2/0x8a0 drivers/net/wireless/mac80211_hwsim.c:1812 __iterate_interfaces+0x21e/0x4b0 net/mac80211/util.c:793 ieee80211_iterate_active_interfaces_atomic+0xaf/0x140 net/mac80211/util.c:829 mac80211_hwsim_beacon+0xa7/0x180 drivers/net/wireless/mac80211_hwsim.c:1865 __run_hrtimer kernel/time/hrtimer.c:1688 [inline] __hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1752 hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1769 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558 __do_softirq kernel/softirq.c:592 [inline] invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:85 [inline] RIP: 0010:memory_is_nonzero mm/kasan/generic.c:102 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline] RIP: 0010:kasan_check_range+0x7b/0x290 mm/kasan/generic.c:189 Code: 00 00 00 00 fc ff df 4f 8d 34 1a 4c 89 f5 4c 29 cd 48 83 fd 10 7f 26 48 85 ed 0f 84 3a 01 00 00 49 f7 d2 49 01 da 41 80 39 00 <0f> 85 c4 01 00 00 49 ff c1 49 ff c2 75 ee e9 1d 01 00 00 45 89 cf RSP: 0018:ffffc900034bf8b8 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 1ffff92000697f30 RCX: ffffffff884c7ee3 RDX: 0000000000000001 RSI: 0000000000000080 RDI: ffffc900034bf980 RBP: 0000000000000010 R08: dffffc0000000000 R09: fffff52000697f36 R10: fffffffffffffff6 R11: dffffc0000000001 R12: 0000000000008298 R13: ffffc900034bfd40 R14: fffff52000697f40 R15: 0000000000000002 memset+0x1f/0x40 mm/kasan/shadow.c:44 ____sys_recvmsg+0xb3/0x530 net/socket.c:2637 ___sys_recvmsg+0x1ec/0x690 net/socket.c:2697 do_recvmmsg+0x36f/0x8f0 net/socket.c:2791 __sys_recvmmsg net/socket.c:2870 [inline] __do_sys_recvmmsg net/socket.c:2893 [inline] __se_sys_recvmmsg net/socket.c:2886 [inline] __x64_sys_recvmmsg+0x195/0x240 net/socket.c:2886 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fa1de33a7a9 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:00007fa1de2d8228 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007fa1de3c4438 RCX: 00007fa1de33a7a9 RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 00007fa1de3c4430 R08: 0000000000000000 R09: 00007fa1de2d86c0 R10: 0000000000000002 R11: 0000000000000246 R12: 00007fa1de3c443c R13: 00007fa1de391364 R14: 0031313230386c6e R15: 00007fff482ac938 ---------------- Code disassembly (best guess), 6 bytes skipped: 0: df 4f 8d fisttps -0x73(%rdi) 3: 34 1a xor $0x1a,%al 5: 4c 89 f5 mov %r14,%rbp 8: 4c 29 cd sub %r9,%rbp b: 48 83 fd 10 cmp $0x10,%rbp f: 7f 26 jg 0x37 11: 48 85 ed test %rbp,%rbp 14: 0f 84 3a 01 00 00 je 0x154 1a: 49 f7 d2 not %r10 1d: 49 01 da add %rbx,%r10 20: 41 80 39 00 cmpb $0x0,(%r9) * 24: 0f 85 c4 01 00 00 jne 0x1ee <-- trapping instruction 2a: 49 ff c1 inc %r9 2d: 49 ff c2 inc %r10 30: 75 ee jne 0x20 32: e9 1d 01 00 00 jmp 0x154 37: 45 89 cf mov %r9d,%r15d