syzbot

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WARNING: CPU: 0 PID: 8882 at net/mac80211/status.c:925 ieee80211_tx_monitor+0x129c/0x1d74 net/mac80211/status.c:926
Modules linked in:
CPU: 0 UID: 0 PID: 8882 Comm: syz.1.494 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 43400005 (nZcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : ieee80211_tx_monitor+0x129c/0x1d74 net/mac80211/status.c:926
lr : ieee80211_tx_monitor+0x1294/0x1d74 net/mac80211/status.c:925
sp : ffff800097927b60
x29: ffff800097927bb0 x28: dfff800000000000 x27: 0000000000000000
x26: 1fffe0001fceb492 x25: 1fffe0001fceb493 x24: ffff0000fe75a490
x23: 000000000000000d x22: ffff0000fe75a498 x21: 0000000000000000
x20: ffff800097927d00 x19: ffff0000fe75a3c0 x18: 00000000ffffffff
x17: ffff800093304000 x16: ffff80008052abc8 x15: 0000000000000001
x14: 1fffe0001a97c5be x13: 0000000000000000 x12: 0000000000000000
x11: ffff60001a97c5bf x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000c4bd0000 x7 : ffff800080acef64 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff800097927d00
x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff80008db39a80
Call trace:
 ieee80211_tx_monitor+0x129c/0x1d74 net/mac80211/status.c:926 (P)
 __ieee80211_tx_status net/mac80211/status.c:1110 [inline]
 ieee80211_tx_status_ext+0x15e4/0x1f70 net/mac80211/status.c:1235
 ieee80211_tx_status_skb+0x184/0x264 net/mac80211/status.c:1133
 ieee80211_handle_queued_frames+0x10c/0x17c net/mac80211/main.c:457
 ieee80211_tasklet_handler+0x20/0x30 net/mac80211/main.c:472
 tasklet_action_common+0x2fc/0x3ec kernel/softirq.c:925
 tasklet_action+0x68/0x8c kernel/softirq.c:953
 handle_softirqs+0x328/0xc88 kernel/softirq.c:622
 __do_softirq+0x14/0x20 kernel/softirq.c:656
 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:68
 call_on_irq_stack+0x30/0x48 arch/arm64/kernel/entry.S:891
 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:73
 do_softirq+0x90/0xf8 kernel/softirq.c:523
 __local_bh_enable_ip+0x240/0x35c kernel/softirq.c:450
 local_bh_enable+0x28/0x34 include/linux/bottom_half.h:33
 __neigh_event_send+0x84/0x13fc net/core/neighbour.c:1274
 neigh_event_send_probe include/net/neighbour.h:471 [inline]
 neigh_event_send include/net/neighbour.h:477 [inline]
 neigh_resolve_output+0x180/0x654 net/core/neighbour.c:1579
 neigh_output include/net/neighbour.h:547 [inline]
 ip_finish_output2+0xdc4/0x1240 net/ipv4/ip_output.c:237
 __ip_finish_output+0x1b0/0x44c net/ipv4/ip_output.c:-1
 ip_finish_output+0x44/0x304 net/ipv4/ip_output.c:325
 NF_HOOK_COND include/linux/netfilter.h:307 [inline]
 ip_output+0x284/0x3f8 net/ipv4/ip_output.c:438
 dst_output include/net/dst.h:464 [inline]
 ip_local_out net/ipv4/ip_output.c:131 [inline]
 __ip_queue_xmit+0x8b8/0x1794 net/ipv4/ip_output.c:534
 ip_queue_xmit+0x5c/0x7c net/ipv4/ip_output.c:548
 l2tp_ip_sendmsg+0x57c/0x1280 net/l2tp/l2tp_ip.c:518
 inet_sendmsg+0x154/0x284 net/ipv4/af_inet.c:853
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 ____sys_sendmsg+0x490/0x7b8 net/socket.c:2630
 ___sys_sendmsg+0x204/0x278 net/socket.c:2684
 __sys_sendmmsg+0x1f4/0x548 net/socket.c:2773
 __do_sys_sendmmsg net/socket.c:2800 [inline]
 __se_sys_sendmmsg net/socket.c:2797 [inline]
 __arm64_sys_sendmmsg+0xa0/0xbc net/socket.c:2797
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x5c/0x254 arch/arm64/kernel/entry-common.c:724
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
irq event stamp: 177697
hardirqs last  enabled at (177696): [<ffff8000803d7ea8>] __local_bh_enable_ip+0x1ec/0x35c kernel/softirq.c:455
hardirqs last disabled at (177697): [<ffff80008adf1d38>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412
softirqs last  enabled at (177396): [<ffff800089103e74>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (177397): [<ffff800080022024>] __do_softirq+0x14/0x20 kernel/softirq.c:656
---[ end trace 0000000000000000 ]---
ieee80211_tx_status: headroom too small