------------[ cut here ]------------
WARNING: CPU: 0 PID: 6354 at net/mac80211/tx.c:4851 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4851 [inline]
WARNING: CPU: 0 PID: 6354 at net/mac80211/tx.c:4851 __ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5075
Modules linked in:
CPU: 0 PID: 6354 Comm: syz.9.392 Not tainted 5.15.189-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4851 [inline]
RIP: 0010:__ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5075
Code: f8 0f 0b e9 f1 fa ff ff e8 d1 61 3b f8 0f 0b 4c 8b 74 24 08 e9 36 fe ff ff e8 c0 61 3b f8 0f 0b e9 3c ef ff ff e8 b4 61 3b f8 <0f> 0b e9 b8 f2 ff ff e8 f8 ca 6b 00 44 89 e1 80 e1 07 80 c1 03 38
RSP: 0018:ffffc900000078c0 EFLAGS: 00010246
RAX: ffffffff893c626c RBX: ffff88807b40cc80 RCX: ffff888051ab3b80
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007ae8 R08: ffff888051ab3b80 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88802aba9600
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f28
FS: 000055555f064500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff93a0c2000 CR3: 00000000508cd000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5194
ieee80211_beacon_get include/net/mac80211.h:4981 [inline]
mac80211_hwsim_beacon_tx+0xf4/0x920 drivers/net/wireless/mac80211_hwsim.c:1812
__iterate_interfaces+0x243/0x500 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0xb3/0x140 net/mac80211/util.c:829
mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
__run_hrtimer kernel/time/hrtimer.c:1690 [inline]
__hrtimer_run_queues+0x53d/0xc40 kernel/time/hrtimer.c:1754
hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1771
handle_softirqs+0x328/0x820 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
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:clear_page_erms+0x7/0x10 arch/x86/lib/clear_page_64.S:49
Code: 48 89 47 18 48 89 47 20 48 89 47 28 48 89 47 30 48 89 47 38 48 8d 7f 40 75 d9 90 c3 90 90 90 90 90 90 90 b9 00 10 00 00 31 c0 aa c3 00 00 cc cc 00 00 55 41 57 41 56 41 55 41 54 53 48 83 ec
RSP: 0018:ffffc900031af6f0 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff888050f31000 RCX: 0000000000000f00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888050f31100
RBP: 0000000000102dc2 R08: dffffc0000000000 R09: ffffed100a1e6200
R10: fffff9400028798f R11: 1ffffd400028798e R12: 0000000000000001
R13: 1ffff1100a356a61 R14: ffff888051ab5308 R15: dffffc0000000000
clear_page arch/x86/include/asm/page_64.h:49 [inline]
clear_highpage include/linux/highmem.h:181 [inline]
kernel_init_free_pages+0x7c/0xf0 mm/page_alloc.c:1278
post_alloc_hook+0x106/0x220 mm/page_alloc.c:2416
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5474
vm_area_alloc_pages mm/vmalloc.c:2869 [inline]
__vmalloc_area_node mm/vmalloc.c:2925 [inline]
__vmalloc_node_range+0x4b2/0x8b0 mm/vmalloc.c:3030
vmalloc_user+0x70/0x80 mm/vmalloc.c:3166
kcov_mmap+0x27/0x120 kernel/kcov.c:474
call_mmap include/linux/fs.h:2177 [inline]
mmap_file+0x5d/0xb0 mm/util.c:1092
__mmap_region mm/mmap.c:1792 [inline]
mmap_region+0xd0d/0x15e0 mm/mmap.c:2929
do_mmap+0x77a/0xdf0 mm/mmap.c:1582
vm_mmap_pgoff+0x1b2/0x2b0 mm/util.c:551
ksys_mmap_pgoff+0x542/0x780 mm/mmap.c:1631
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fc2a5e00c23
Code: f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 89 ca 41 f7 c1 ff 0f 00 00 75 14 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 25 c3 0f 1f 40 00 48 c7 c0 a8 ff ff ff 64 c7
RSP: 002b:00007ffcdd2e5a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fc2a6028308 RCX: 00007fc2a5e00c23
RDX: 0000000000000003 RSI: 0000000000400000 RDI: 00007fc2a3c05000
RBP: 00007fc2a6028270 R08: 00000000000000db R09: 0000000000000000
R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000003
R13: 00007fc2a6028270 R14: 0000000000001c26 R15: 0000000000000003
----------------
Code disassembly (best guess):
0: 48 89 47 18 mov %rax,0x18(%rdi)
4: 48 89 47 20 mov %rax,0x20(%rdi)
8: 48 89 47 28 mov %rax,0x28(%rdi)
c: 48 89 47 30 mov %rax,0x30(%rdi)
10: 48 89 47 38 mov %rax,0x38(%rdi)
14: 48 8d 7f 40 lea 0x40(%rdi),%rdi
18: 75 d9 jne 0xfffffff3
1a: 90 nop
1b: c3 ret
1c: 90 nop
1d: 90 nop
1e: 90 nop
1f: 90 nop
20: 90 nop
21: 90 nop
22: 90 nop
23: b9 00 10 00 00 mov $0x1000,%ecx
28: 31 c0 xor %eax,%eax
* 2a: f3 aa rep stos %al,%es:(%rdi) <-- trapping instruction
2c: c3 ret
2d: 00 00 add %al,(%rax)
2f: cc int3
30: cc int3
31: 00 00 add %al,(%rax)
33: 55 push %rbp
34: 41 57 push %r15
36: 41 56 push %r14
38: 41 55 push %r13
3a: 41 54 push %r12
3c: 53 push %rbx
3d: 48 rex.W
3e: 83 .byte 0x83
3f: ec in (%dx),%al