------------[ cut here ]------------
WARNING: CPU: 1 PID: 8987 at net/mac80211/tx.c:5021 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5021 [inline]
WARNING: CPU: 1 PID: 8987 at net/mac80211/tx.c:5021 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5432
Modules linked in:
CPU: 1 PID: 8987 Comm: syz.7.558 Not tainted 6.6.101-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:5021 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5432
Code: 24 4c 89 e7 e8 4e 63 d5 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 09 3f 98 f7 0f 0b e9 f6 f7 ff ff e8 fd 3e 98 f7 <0f> 0b e9 48 fb ff ff e8 f1 3e 98 f7 48 c7 c7 80 fd 23 8e 4c 89 e6
RSP: 0018:ffffc900001f0a18 EFLAGS: 00010246
RAX: ffffffff89ed5693 RBX: ffffffff89ed4496 RCX: ffff88801eea5a00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88801eea5a00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88806b3f23c0
R13: dffffc0000000000 R14: ffff88806b3f28b0 R15: ffff88802651bc24
FS: 00007fab0bc4c6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ff23ffc CR3: 000000007ab5a000 CR4: 00000000003506e0
Call Trace:
ieee80211_beacon_get_tim+0xb8/0x560 net/mac80211/tx.c:5559
ieee80211_beacon_get include/net/mac80211.h:5438 [inline]
mac80211_hwsim_beacon_tx+0x3c7/0x780 drivers/net/wireless/virtual/mac80211_hwsim.c:2265
__iterate_interfaces+0x243/0x500 net/mac80211/util.c:766
ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:802
mac80211_hwsim_beacon+0xbb/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2295
__run_hrtimer kernel/time/hrtimer.c:1755 [inline]
__hrtimer_run_queues+0x51e/0xc40 kernel/time/hrtimer.c:1819
hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1836
handle_softirqs+0x280/0x820 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0xc7/0x190 kernel/softirq.c:661
irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:__sanitizer_cov_trace_pc+0x45/0x60 kernel/kcov.c:221
Code: ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 1c 16 00 00 00 74 2c 8b 91 f8 15 00 00 83 fa 02 75 21 48 8b 91 00 16 00 00 48 8b 32 <48> 8d 7e 01 8b 89 fc 15 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2
RSP: 0018:ffffc9000fca6c50 EFLAGS: 00000246
RAX: ffffffff813aa3f0 RBX: 1ffff92001f94da5 RCX: ffff88801eea5a00
RDX: ffffc9000e2f0000 RSI: 000000000007ffff RDI: ffffffff813aa37e
RBP: ffffc9000fca6d78 R08: ffffc9000fca6df0 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000002 R12: ffffc9000fca6d28
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff81e6042d
unwind_next_frame+0x130/0x2970 arch/x86/kernel/unwind_orc.c:482
arch_stack_walk+0x144/0x190 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x9c/0xe0 kernel/stacktrace.c:122
save_stack+0xf7/0x1f0 mm/page_owner.c:128
__set_page_owner+0x1d/0x60 mm/page_owner.c:192
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x1cd/0x210 mm/page_alloc.c:1554
prep_new_page mm/page_alloc.c:1561 [inline]
get_page_from_freelist+0x195c/0x19f0 mm/page_alloc.c:3191
__alloc_pages+0x1e3/0x460 mm/page_alloc.c:4457
__folio_alloc+0x10/0x20 mm/page_alloc.c:4489
vma_alloc_folio+0x47a/0x8f0 mm/mempolicy.c:2242
shmem_alloc_folio+0x179/0x230 mm/shmem.c:1680
shmem_alloc_and_acct_folio+0x189/0x630 mm/shmem.c:1705
shmem_get_folio_gfp+0xcde/0x2ac0 mm/shmem.c:2042
shmem_fault+0x1b6/0x7f0 mm/shmem.c:2249
__do_fault+0x13b/0x4e0 mm/memory.c:4243
do_read_fault mm/memory.c:4616 [inline]
do_fault mm/memory.c:4753 [inline]
do_pte_missing mm/memory.c:3688 [inline]
handle_pte_fault mm/memory.c:5025 [inline]
__handle_mm_fault mm/memory.c:5166 [inline]
handle_mm_fault+0x3886/0x4920 mm/memory.c:5331
faultin_page mm/gup.c:868 [inline]
__get_user_pages+0x5ea/0x1470 mm/gup.c:1167
populate_vma_page_range+0x2b6/0x370 mm/gup.c:1593
__mm_populate+0x24c/0x380 mm/gup.c:1696
mm_populate include/linux/mm.h:3317 [inline]
vm_mmap_pgoff+0x2e7/0x400 mm/util.c:561
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fab0ad8ebe9
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:00007fab0bc4c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fab0afb5fa0 RCX: 00007fab0ad8ebe9
RDX: b635773f06ebbee2 RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007fab0ae11e19 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fab0afb6038 R14: 00007fab0afb5fa0 R15: 00007fffa71b1ab8
----------------
Code disassembly (best guess):
0: ff 00 incl (%rax)
2: 74 11 je 0x15
4: 81 fa 00 01 00 00 cmp $0x100,%edx
a: 75 35 jne 0x41
c: 83 b9 1c 16 00 00 00 cmpl $0x0,0x161c(%rcx)
13: 74 2c je 0x41
15: 8b 91 f8 15 00 00 mov 0x15f8(%rcx),%edx
1b: 83 fa 02 cmp $0x2,%edx
1e: 75 21 jne 0x41
20: 48 8b 91 00 16 00 00 mov 0x1600(%rcx),%rdx
27: 48 8b 32 mov (%rdx),%rsi
* 2a: 48 8d 7e 01 lea 0x1(%rsi),%rdi <-- trapping instruction
2e: 8b 89 fc 15 00 00 mov 0x15fc(%rcx),%ecx
34: 48 39 cf cmp %rcx,%rdi
37: 73 08 jae 0x41
39: 48 89 3a mov %rdi,(%rdx)
3c: 48 rex.W
3d: 89 .byte 0x89
3e: 44 rex.R
3f: f2 repnz