syzbot

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WARNING: CPU: 0 PID: 4629 at net/mac80211/tx.c:4934 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4934 [inline]
WARNING: CPU: 0 PID: 4629 at net/mac80211/tx.c:4934 __ieee80211_beacon_get+0x1952/0x1f50 net/mac80211/tx.c:5255
Modules linked in:
CPU: 0 PID: 4629 Comm: syz.1.130 Not tainted 6.1.144-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4934 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1952/0x1f50 net/mac80211/tx.c:5255
Code: ff ff ff e8 e0 ba e3 f7 0f 0b 48 8b 7c 24 20 e8 a4 93 7f fe e9 dd e9 ff ff e8 ca ba e3 f7 0f 0b e9 f1 ee ff ff e8 be ba e3 f7 <0f> 0b e9 61 f2 ff ff e8 b2 ba e3 f7 48 c7 c7 f0 70 fa 8d 4c 89 f6
RSP: 0000:ffffc900000078a0 EFLAGS: 00010246
RAX: ffffffff899d1cd2 RBX: 0000000000000000 RCX: ffff88805e130000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007aa8 R08: ffff88805e130000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: 1ffff92000000f2c
R13: dffffc0000000000 R14: ffff88807874e258 R15: ffff888075cc7400
FS:  000055556b80f500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff5419b5fa4 CR3: 000000002f2cc000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0x5b/0x4d0 net/mac80211/tx.c:5342
 ieee80211_beacon_get include/net/mac80211.h:5262 [inline]
 mac80211_hwsim_beacon_tx+0x21c/0xae0 drivers/net/wireless/mac80211_hwsim.c:2091
 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:788
 ieee80211_iterate_active_interfaces_atomic+0xd7/0x170 net/mac80211/util.c:824
 mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
 __run_hrtimer kernel/time/hrtimer.c:1752 [inline]
 __hrtimer_run_queues+0x554/0xd60 kernel/time/hrtimer.c:1816
 hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1833
 handle_softirqs+0x2a1/0x920 kernel/softirq.c:596
 __do_softirq kernel/softirq.c:630 [inline]
 invoke_softirq kernel/softirq.c:470 [inline]
 __irq_exit_rcu+0x12f/0x220 kernel/softirq.c:679
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
 sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:count_memcg_event_mm+0x196/0x3b0 include/linux/memcontrol.h:1097
Code: ff 41 89 c4 31 ff 89 c6 e8 57 a7 c1 ff 45 85 e4 0f 84 c7 00 00 00 e8 e9 a3 c1 ff eb 05 e8 e2 a3 c1 ff 4c 89 ff e8 ba 5c 19 00 <48> 85 c0 0f 84 06 01 00 00 49 89 c7 48 c7 44 24 60 00 00 00 00 9c
RSP: 0000:ffffc90002da7ba0 EFLAGS: 00000246
RAX: ffff888027626000 RBX: 1ffff920005b4f78 RCX: 5cd6f192d701d000
RDX: 0000000000000000 RSI: ffffffff8a8c15e0 RDI: ffffffff8adf1c20
RBP: ffffc90002da7c70 R08: dffffc0000000000 R09: fffffbfff215c449
R10: fffffbfff215c449 R11: 1ffffffff215c448 R12: 0000000000000001
R13: dffffc0000000000 R14: 0000000000000017 R15: ffff88805e130000
 handle_mm_fault+0x122/0x3e70 mm/memory.c:5272
 do_user_addr_fault+0x51f/0xb10 arch/x86/mm/fault.c:1340
 handle_page_fault arch/x86/mm/fault.c:1431 [inline]
 exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1487
 asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:608
RIP: 0033:0x7ff5416566af
Code: 49 bc 20 91 10 00 00 86 00 00 eb b2 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 41 56 41 55 41 54 55 48 89 fd 53 48 83 ec 50 <c6> 47 04 01 89 37 c6 47 20 00 84 d2 74 1c 8b 87 98 00 00 00 85 c0
RSP: 002b:00007fff46981c50 EFLAGS: 00010206
RAX: 0000000000000000 RBX: 00007ff5419b5fa0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ff5419b5fa0
RBP: 00007ff5419b5fa0 R08: 00007ff5419b5fa0 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000000 R12: 00007ff5419b5fa0
R13: 00007ff5419b5fa0 R14: 0000000000001cca R15: 0000000000000002
 </TASK>
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	41 89 c4             	mov    %eax,%r12d
   3:	31 ff                	xor    %edi,%edi
   5:	89 c6                	mov    %eax,%esi
   7:	e8 57 a7 c1 ff       	call   0xffc1a763
   c:	45 85 e4             	test   %r12d,%r12d
   f:	0f 84 c7 00 00 00    	je     0xdc
  15:	e8 e9 a3 c1 ff       	call   0xffc1a403
  1a:	eb 05                	jmp    0x21
  1c:	e8 e2 a3 c1 ff       	call   0xffc1a403
  21:	4c 89 ff             	mov    %r15,%rdi
  24:	e8 ba 5c 19 00       	call   0x195ce3
* 29:	48 85 c0             	test   %rax,%rax <-- trapping instruction
  2c:	0f 84 06 01 00 00    	je     0x138
  32:	49 89 c7             	mov    %rax,%r15
  35:	48 c7 44 24 60 00 00 	movq   $0x0,0x60(%rsp)
  3c:	00 00
  3e:	9c                   	pushf