------------[ cut here ]------------
WARNING: CPU: 0 PID: 7024 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 0 PID: 7024 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x172c/0x1f80 net/mac80211/tx.c:5083
Modules linked in:
CPU: 0 PID: 7024 Comm: syz.9.645 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: ffff888026964c80 RCX: ffff8880212e9dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007ae8 R08: ffff8880212e9dc0 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff888022bb6a00
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f28
FS: 00007f6c6cfbf6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000003000 CR3: 000000004e2bd000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 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:lockdep_init_map_type+0x3d7/0x850 kernel/locking/lockdep.c:4819
Code: 00 48 c7 c0 80 3f 0c 96 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 98 03 00 00 83 3d 74 66 b0 14 00 74 48 48 c7 44 24 20 0e 36 e0 45 <48> 8b 44 24 18 48 c7 04 10 00 00 00 00 66 c7 44 10 09 00 00 c6 44
RSP: 0018:ffffc90003e0f8e0 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc90003e0fa08 RCX: ffffffff960c3f01
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffc90003e0fa29
RBP: ffffc90003e0f9a8 R08: dffffc0000000000 R09: ffffc90003e0fa10
R10: fffff520007c1f44 R11: 1ffff920007c1f42 R12: 0000000000000000
R13: 0000000000000000 R14: ffffc90003e0fa2a R15: 0000000000000000
lockdep_init_map_waits include/linux/lockdep.h:195 [inline]
lockdep_init_map_wait include/linux/lockdep.h:202 [inline]
lockdep_init_map include/linux/lockdep.h:208 [inline]
do_init_timer kernel/time/timer.c:797 [inline]
init_timer_on_stack_key kernel/time/timer.c:753 [inline]
schedule_timeout+0x143/0x280 kernel/time/timer.c:1912
snd_rawmidi_write+0x3e3/0xbc0 sound/core/rawmidi.c:1542
do_loop_readv_writev fs/read_write.c:-1 [inline]
do_iter_write+0x3e4/0x7b0 fs/read_write.c:857
vfs_writev fs/read_write.c:928 [inline]
do_writev+0x254/0x410 fs/read_write.c:971
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: 0033:0x7f6c6ed57fc9
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:00007f6c6cfbf038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 00007f6c6efaefa0 RCX: 00007f6c6ed57fc9
RDX: 000000000000002f RSI: 0000200000000840 RDI: 0000000000000004
RBP: 00007f6c6eddaf91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6c6efaf038 R14: 00007f6c6efaefa0 R15: 00007fffa1a51048
----------------
Code disassembly (best guess):
0: 00 48 c7 add %cl,-0x39(%rax)
3: c0 80 3f 0c 96 48 c1 rolb $0xc1,0x48960c3f(%rax)
a: e8 03 0f b6 04 call 0x4b60f12
f: 10 84 c0 0f 85 98 03 adc %al,0x398850f(%rax,%rax,8)
16: 00 00 add %al,(%rax)
18: 83 3d 74 66 b0 14 00 cmpl $0x0,0x14b06674(%rip) # 0x14b06693
1f: 74 48 je 0x69
21: 48 c7 44 24 20 0e 36 movq $0x45e0360e,0x20(%rsp)
28: e0 45
* 2a: 48 8b 44 24 18 mov 0x18(%rsp),%rax <-- trapping instruction
2f: 48 c7 04 10 00 00 00 movq $0x0,(%rax,%rdx,1)
36: 00
37: 66 c7 44 10 09 00 00 movw $0x0,0x9(%rax,%rdx,1)
3e: c6 .byte 0xc6
3f: 44 rex.R