------------[ cut here ]------------
WARNING: CPU: 0 PID: 7721 at net/mac80211/tx.c:5031 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
WARNING: CPU: 0 PID: 7721 at net/mac80211/tx.c:5031 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Modules linked in:
CPU: 0 PID: 7721 Comm: syz.3.505 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5031 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5442
Code: 24 4c 89 e7 e8 5e 3f c2 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 99 85 84 f7 0f 0b e9 f6 f7 ff ff e8 8d 85 84 f7 <0f> 0b e9 48 fb ff ff e8 81 85 84 f7 48 c7 c7 20 51 64 8e 4c 89 e6
RSP: 0018:ffffc90000007a18 EFLAGS: 00010246
RAX: ffffffff8a028e13 RBX: ffffffff8a027c16 RCX: ffff88803191da00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88803191da00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805be323c0
R13: dffffc0000000000 R14: ffff88805be328b0 R15: ffff88802f12a024
FS: 00007ff474e336c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff474e32ff8 CR3: 00000000315e2000 CR4: 00000000003506f0
Call Trace:
ieee80211_beacon_get_tim+0xbf/0x580 net/mac80211/tx.c:5569
ieee80211_beacon_get include/net/mac80211.h:5440 [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:1750 [inline]
__hrtimer_run_queues+0x52a/0xc40 kernel/time/hrtimer.c:1814
hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1831
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+0xd3/0x190 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:on_stack arch/x86/include/asm/stacktrace.h:55 [inline]
RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:393 [inline]
RIP: 0010:deref_stack_reg+0x39/0x240 arch/x86/kernel/unwind_orc.c:403
Code: 89 54 24 20 48 89 34 24 49 89 ff 48 bd 00 00 00 00 00 fc ff df e8 27 b1 4b 00 49 8d 5f 08 48 89 d8 48 c1 e8 03 48 89 44 24 10 <80> 3c 28 00 74 08 48 89 df e8 19 da a3 00 48 89 5c 24 18 4d 8b 77
RSP: 0018:ffffc9000c59f630 EFLAGS: 00000a06
RAX: 1ffff920018b3efa RBX: ffffc9000c59f7d0 RCX: ffff88803191da00
RDX: 0000000000000000 RSI: ffffc9000c59f850 RDI: ffffc9000c59f7c8
RBP: dffffc0000000000 R08: ffff88803191da00 R09: 0000000000000003
R10: 0000000000000004 R11: 0000000000000000 R12: ffffc9000c59f7c8
R13: dffffc0000000000 R14: ffffffff8f0c8282 R15: ffffc9000c59f7c8
unwind_next_frame+0x1789/0x2970 arch/x86/kernel/unwind_orc.c:648
__unwind_start+0x66a/0x7e0 arch/x86/kernel/unwind_orc.c:760
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0xf8/0x190 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:46 [inline]
kasan_set_track+0x4e/0x70 mm/kasan/common.c:53
kasan_save_free_info+0x2e/0x50 mm/kasan/generic.c:522
____kasan_slab_free+0x126/0x1e0 mm/kasan/common.c:237
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1811 [inline]
slab_free_freelist_hook+0x130/0x1a0 mm/slub.c:1837
slab_free mm/slub.c:3830 [inline]
__kmem_cache_free+0xba/0x1e0 mm/slub.c:3843
tomoyo_path_number_perm+0x500/0x620 security/tomoyo/file.c:736
security_file_ioctl+0x70/0xa0 security/security.c:2647
__do_sys_ioctl fs/ioctl.c:865 [inline]
__se_sys_ioctl+0x48/0x170 fs/ioctl.c:857
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7ff473f9c2bb
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007ff474e33050 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ff474216218 RCX: 00007ff473f9c2bb
RDX: 0000000000000000 RSI: 0000000000006364 RDI: 00000000000000da
RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ff474e336c0
R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ff474216218 R14: 00007ffe477d52a0 R15: 00007ffe477d5388
----------------
Code disassembly (best guess):
0: 89 54 24 20 mov %edx,0x20(%rsp)
4: 48 89 34 24 mov %rsi,(%rsp)
8: 49 89 ff mov %rdi,%r15
b: 48 bd 00 00 00 00 00 movabs $0xdffffc0000000000,%rbp
12: fc ff df
15: e8 27 b1 4b 00 call 0x4bb141
1a: 49 8d 5f 08 lea 0x8(%r15),%rbx
1e: 48 89 d8 mov %rbx,%rax
21: 48 c1 e8 03 shr $0x3,%rax
25: 48 89 44 24 10 mov %rax,0x10(%rsp)
* 2a: 80 3c 28 00 cmpb $0x0,(%rax,%rbp,1) <-- trapping instruction
2e: 74 08 je 0x38
30: 48 89 df mov %rbx,%rdi
33: e8 19 da a3 00 call 0xa3da51
38: 48 89 5c 24 18 mov %rbx,0x18(%rsp)
3d: 4d rex.WRB
3e: 8b .byte 0x8b
3f: 77 .byte 0x77