# CVE-2026-80924: linux: In the Linux kernel, the following vulnerability has been resolved:  crypto: krb5 - use kfree_sensitive() for derived...

CVE-2026-80924 is fixed in linux on 1 platform by DEBIAN-CVE-2026-80924 (version 7.1.13-1), released September 11, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-80924
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0032
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 9, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  crypto: krb5 - use kfree_sensitive() for derived key buffers  crypto_krb5_prepare_encryption() and crypto_krb5_prepare_checksum() free the buffer holding the freshly derived keys with plain kfree(), leaving the key material behind in the freed slab object.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.1.13-1 | [DEBIAN-CVE-2026-80924](https://patchblox.com/security/data/fix/linux/debian-cve-2026-80924.md) | Sep 11, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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