------------[ cut here ]------------
WARNING: CPU: 1 PID: 5997 at net/mac80211/tx.c:5033 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5033 [inline]
WARNING: CPU: 1 PID: 5997 at net/mac80211/tx.c:5033 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5444
Modules linked in:
CPU: 1 PID: 5997 Comm: syz.1.34 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5033 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5444
Code: 24 4c 89 e7 e8 fe 74 c0 f7 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 f9 b2 82 f7 0f 0b e9 f6 f7 ff ff e8 ed b2 82 f7 <0f> 0b e9 48 fb ff ff e8 e1 b2 82 f7 48 c7 c7 20 89 64 8e 4c 89 e6
RSP: 0018:ffffc900001f0a18 EFLAGS: 00010246
RAX: ffffffff8a046f13 RBX: ffffffff8a045d16 RCX: ffff888023825a00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888023825a00 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805c4023c0
R13: dffffc0000000000 R14: ffff88805c4028b0 R15: ffff888024926024
FS: 00007f81b59c56c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2db13ff8 CR3: 0000000021487000 CR4: 00000000003506e0
Call Trace:
ieee80211_beacon_get_tim+0xbf/0x580 net/mac80211/tx.c:5571
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+0x520/0xc40 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:finish_task_switch+0x26a/0x8f0 kernel/sched/core.c:5255
Code: 0f 84 33 01 00 00 48 85 db 0f 85 52 01 00 00 e9 de 04 00 00 4c 8b 75 d0 4c 89 e7 e8 00 a9 32 09 e8 9b 29 30 00 fb 4c 8b 65 c0 <49> 8d bc 24 f8 15 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 28 84 c0
RSP: 0018:ffffc900052d66b8 EFLAGS: 00000286
RAX: 07a2a08bf6930200 RBX: 0000000000000000 RCX: 07a2a08bf6930200
RDX: dffffc0000000000 RSI: ffffffff8acac9e0 RDI: ffffffff8b1c8fa0
RBP: ffffc900052d6710 R08: ffffffff911c65c7 R09: 1ffffffff2238cb8
R10: dffffc0000000000 R11: fffffbfff2238cb9 R12: ffff888023825a00
R13: dffffc0000000000 R14: ffff8880278c3c00 R15: ffff8880b8f3cac8
context_switch kernel/sched/core.c:5384 [inline]
__schedule+0x155b/0x45a0 kernel/sched/core.c:6700
preempt_schedule_irq+0xbf/0x150 kernel/sched/core.c:7010
irqentry_exit+0x67/0x70 kernel/entry/common.c:438
asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:692
RIP: 0010:lock_acquire+0x208/0x420 kernel/locking/lockdep.c:5758
Code: f7 84 24 80 00 00 00 00 02 00 00 43 c6 44 3c 04 f8 0f 85 f0 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 3c 00 00 00 00 43 c7 44 3c 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc900052d6aa0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 07a2a08bf6930200
RDX: 0000000000000000 RSI: ffffffff8acadb60 RDI: ffffffff8b1c8fa0
RBP: ffffc900052d6ba8 R08: dffffc0000000000 R09: 1ffffffff2238ca0
R10: dffffc0000000000 R11: fffffbfff2238ca1 R12: 1ffff92000a5ad60
R13: ffffffff8d1320e0 R14: 0000000000000246 R15: dffffc0000000000
rcu_lock_acquire include/linux/rcupdate.h:334 [inline]
rcu_read_lock include/linux/rcupdate.h:786 [inline]
ip_finish_output2+0x474/0x11e0 net/ipv4/ip_output.c:228
ip_do_fragment+0x877/0x1760 net/ipv4/ip_output.c:921
NF_HOOK_COND include/linux/netfilter.h:293 [inline]
ip_output+0x2a1/0x3b0 net/ipv4/ip_output.c:436
dst_output include/net/dst.h:467 [inline]
ip_local_out net/ipv4/ip_output.c:129 [inline]
__ip_queue_xmit+0x1049/0x1950 net/ipv4/ip_output.c:540
__tcp_transmit_skb+0x1d6b/0x33f0 net/ipv4/tcp_output.c:1425
tcp_transmit_skb net/ipv4/tcp_output.c:1443 [inline]
tcp_write_xmit+0x174c/0x62e0 net/ipv4/tcp_output.c:2781
tcp_sendmsg_locked+0x293b/0x4bd0 net/ipv4/tcp.c:1296
tcp_sendmsg+0x2f/0x50 net/ipv4/tcp.c:1348
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
sock_sendmsg+0x25a/0x3d0 net/socket.c:768
splice_to_socket+0xa52/0x10e0 fs/splice.c:881
do_splice_from fs/splice.c:933 [inline]
direct_splice_actor+0xe8/0x130 fs/splice.c:1142
splice_direct_to_actor+0x304/0x8c0 fs/splice.c:1088
do_splice_direct+0x1d5/0x2f0 fs/splice.c:1194
do_sendfile+0x5f2/0xef0 fs/read_write.c:1254
__do_sys_sendfile64 fs/read_write.c:1322 [inline]
__se_sys_sendfile64+0x145/0x1a0 fs/read_write.c:1308
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: 0033:0x7f81b4b9cdd9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f81b59c5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f81b4e16180 RCX: 00007f81b4b9cdd9
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000005
RBP: 00007f81b4c32d69 R08: 0000000000000000 R09: 0000000000000000
R10: 000000007ffff004 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f81b4e16218 R14: 00007f81b4e16180 R15: 00007ffdcf10d3e8
----------------
Code disassembly (best guess):
0: 0f 84 33 01 00 00 je 0x139
6: 48 85 db test %rbx,%rbx
9: 0f 85 52 01 00 00 jne 0x161
f: e9 de 04 00 00 jmp 0x4f2
14: 4c 8b 75 d0 mov -0x30(%rbp),%r14
18: 4c 89 e7 mov %r12,%rdi
1b: e8 00 a9 32 09 call 0x932a920
20: e8 9b 29 30 00 call 0x3029c0
25: fb sti
26: 4c 8b 65 c0 mov -0x40(%rbp),%r12
* 2a: 49 8d bc 24 f8 15 00 lea 0x15f8(%r12),%rdi <-- trapping instruction
31: 00
32: 48 89 f8 mov %rdi,%rax
35: 48 c1 e8 03 shr $0x3,%rax
39: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax
3e: 84 c0 test %al,%al