------------[ cut here ]------------ WARNING: CPU: 0 PID: 6344 at net/mac80211/tx.c:5040 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline] WARNING: CPU: 0 PID: 6344 at net/mac80211/tx.c:5040 __ieee80211_beacon_get+0x1202/0x15c0 net/mac80211/tx.c:5469 Modules linked in: CPU: 0 UID: 0 PID: 6344 Comm: syz.1.87 Not tainted 6.13.0-syzkaller-09760-g69e858e0b8b2 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline] RIP: 0010:__ieee80211_beacon_get+0x1202/0x15c0 net/mac80211/tx.c:5469 Code: e8 23 82 57 f6 eb 0d e8 1c 82 57 f6 4c 8b bc 24 98 00 00 00 4c 89 ef e8 7c 17 b0 f6 45 31 ed e9 4c fe ff ff e8 ff 81 57 f6 90 <0f> 0b 90 e9 00 f7 ff ff e8 f1 81 57 f6 90 0f 0b 90 e9 e8 f8 ff ff RSP: 0018:ffffc900000079e0 EFLAGS: 00010246 RAX: ffffffff8b67da71 RBX: 0000000000000000 RCX: ffff888028119e00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffffff8b67d16d R09: ffffffff8b67cb70 R10: 0000000000000003 R11: ffff888028119e00 R12: ffff88806d376500 R13: ffff8880217c0000 R14: ffff88806d3769d0 R15: ffff88806d374d80 FS: 00007f66652296c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020180030 CR3: 0000000033bdc000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_beacon_get_tim+0xb4/0x320 net/mac80211/tx.c:5596 ieee80211_beacon_get include/net/mac80211.h:5641 [inline] mac80211_hwsim_beacon_tx+0x39d/0x850 drivers/net/wireless/virtual/mac80211_hwsim.c:2311 __iterate_interfaces+0x297/0x570 net/mac80211/util.c:760 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:796 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2345 __run_hrtimer kernel/time/hrtimer.c:1738 [inline] __hrtimer_run_queues+0x59b/0xd30 kernel/time/hrtimer.c:1802 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1819 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0xf7/0x220 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+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:memset_orig+0x36/0xb0 arch/x86/lib/memset_64.S:68 Code: b8 01 01 01 01 01 01 01 01 48 0f af c1 41 89 f9 41 83 e1 07 75 70 48 89 d1 48 c1 e9 06 74 35 0f 1f 44 00 00 48 ff c9 48 89 07 <48> 89 47 08 48 89 47 10 48 89 47 18 48 89 47 20 48 89 47 28 48 89 RSP: 0018:ffffc900045e7a78 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000001 RDX: 0000000000000080 RSI: 0000000000000000 RDI: ffffc900045e7b40 RBP: ffffc900045e7e30 R08: ffffc900045e7bbf R09: 0000000000000000 R10: ffffc900045e7b40 R11: fffff520008bcf78 R12: dffffc0000000000 R13: 0000000000006007 R14: 0000000000006008 R15: 0000000000006009 ___sys_recvmsg net/socket.c:2821 [inline] do_recvmmsg+0x34c/0xab0 net/socket.c:2925 __sys_recvmmsg net/socket.c:2999 [inline] __do_sys_recvmmsg net/socket.c:3022 [inline] __se_sys_recvmmsg net/socket.c:3015 [inline] __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3015 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f666438cda9 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:00007f6665229038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f66645a6080 RCX: 00007f666438cda9 RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 00007f666440e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007f66645a6080 R15: 00007ffd21ce6628 ---------------- Code disassembly (best guess): 0: b8 01 01 01 01 mov $0x1010101,%eax 5: 01 01 add %eax,(%rcx) 7: 01 01 add %eax,(%rcx) 9: 48 0f af c1 imul %rcx,%rax d: 41 89 f9 mov %edi,%r9d 10: 41 83 e1 07 and $0x7,%r9d 14: 75 70 jne 0x86 16: 48 89 d1 mov %rdx,%rcx 19: 48 c1 e9 06 shr $0x6,%rcx 1d: 74 35 je 0x54 1f: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 24: 48 ff c9 dec %rcx 27: 48 89 07 mov %rax,(%rdi) * 2a: 48 89 47 08 mov %rax,0x8(%rdi) <-- trapping instruction 2e: 48 89 47 10 mov %rax,0x10(%rdi) 32: 48 89 47 18 mov %rax,0x18(%rdi) 36: 48 89 47 20 mov %rax,0x20(%rdi) 3a: 48 89 47 28 mov %rax,0x28(%rdi) 3e: 48 rex.W 3f: 89 .byte 0x89