------------[ cut here ]------------
WARNING: CPU: 0 PID: 5230 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 0 PID: 5230 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083
Modules linked in:
CPU: 0 PID: 5230 Comm: syz.5.188 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
RIP: 0010:__ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083
Code: f8 0f 0b e9 f1 fa ff ff e8 51 6c 3a f8 0f 0b 4c 8b 74 24 08 e9 36 fe ff ff e8 40 6c 3a f8 0f 0b e9 3c ef ff ff e8 34 6c 3a f8 <0f> 0b e9 b8 f2 ff ff e8 68 ef 6b 00 44 89 e1 80 e1 07 80 c1 03 38
RSP: 0018:ffffc900000078c0 EFLAGS: 00010246
RAX: ffffffff893d5e5c RBX: ffff8880620c8c80 RCX: ffff888020d21dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007ae8 R08: ffff888020d21dc0 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888062323400
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f28
FS: 00007fb86c7086c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdea949b000 CR3: 000000002bd13000 CR4: 00000000003506f0
DR0: ffffffffffffffff DR1: 00000000000001f6 DR2: 0000000000000083
DR3: ffffffffefffff15 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5202
ieee80211_beacon_get include/net/mac80211.h:4983 [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:1685 [inline]
__hrtimer_run_queues+0x53d/0xc40 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
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:mem_cgroup_page_lruvec+0x145/0x1e0 include/linux/memcontrol.h:773
Code: 71 b8 fb ff 48 8b 1b 4c 8d b3 c0 00 00 00 4d 89 f5 49 c1 ed 03 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 50 b8 fb ff 4d 39 26 75 0d <48> 89 d8 5b 41 5c 41 5d 41 5e 41 5f c3 43 80 7c 3d 00 00 74 08 4c
RSP: 0018:ffffc90003f57468 EFLAGS: 00000246
RAX: 1ffff1100f517266 RBX: ffff888073888000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffea0001526540
RBP: ffffc90003f575c0 R08: dffffc0000000000 R09: fffff940002a4ca9
R10: fffff940002a4ca9 R11: 1ffffd40002a4ca8 R12: ffff88813fffb000
R13: 1ffff1100e711018 R14: ffff8880738880c0 R15: dffffc0000000000
lock_page_lruvec_irqsave+0x12/0x60 mm/memcontrol.c:1274
relock_page_lruvec_irqsave include/linux/memcontrol.h:1573 [inline]
__pagevec_lru_add+0x1fd/0x17c0 mm/swap.c:1051
lru_cache_add+0x516/0x750 mm/swap.c:453
shmem_getpage_gfp+0x1868/0x2d40 mm/shmem.c:1945
shmem_fault+0x1a9/0x520 mm/shmem.c:2118
__do_fault+0x141/0x330 mm/memory.c:3928
do_read_fault mm/memory.c:4264 [inline]
do_fault mm/memory.c:4392 [inline]
handle_pte_fault mm/memory.c:4650 [inline]
__handle_mm_fault mm/memory.c:4785 [inline]
handle_mm_fault+0x2946/0x43b0 mm/memory.c:4883
faultin_page mm/gup.c:976 [inline]
__get_user_pages+0x93e/0x11c0 mm/gup.c:1197
populate_vma_page_range+0x213/0x290 mm/gup.c:1529
__mm_populate+0x26f/0x3a0 mm/gup.c:1638
mm_populate include/linux/mm.h:2646 [inline]
vm_mmap_pgoff+0x203/0x2b0 mm/util.c:556
ksys_mmap_pgoff+0x140/0x780 mm/mmap.c:1635
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: 0033:0x7fb86e4a0fc9
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:00007fb86c708038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fb86e6f7fa0 RCX: 00007fb86e4a0fc9
RDX: b635773f06ebbeee RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007fb86e523f91 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb86e6f8038 R14: 00007fb86e6f7fa0 R15: 00007ffdf5c2e068
----------------
Code disassembly (best guess):
0: 71 b8 jno 0xffffffba
2: fb sti
3: ff 48 8b decl -0x75(%rax)
6: 1b 4c 8d b3 sbb -0x4d(%rbp,%rcx,4),%ecx
a: c0 00 00 rolb $0x0,(%rax)
d: 00 4d 89 add %cl,-0x77(%rbp)
10: f5 cmc
11: 49 c1 ed 03 shr $0x3,%r13
15: 43 80 7c 3d 00 00 cmpb $0x0,0x0(%r13,%r15,1)
1b: 74 08 je 0x25
1d: 4c 89 f7 mov %r14,%rdi
20: e8 50 b8 fb ff call 0xfffbb875
25: 4d 39 26 cmp %r12,(%r14)
28: 75 0d jne 0x37
* 2a: 48 89 d8 mov %rbx,%rax <-- trapping instruction
2d: 5b pop %rbx
2e: 41 5c pop %r12
30: 41 5d pop %r13
32: 41 5e pop %r14
34: 41 5f pop %r15
36: c3 ret
37: 43 80 7c 3d 00 00 cmpb $0x0,0x0(%r13,%r15,1)
3d: 74 08 je 0x47
3f: 4c rex.WR