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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
3936f02bf2d3308a7359dd37dd96cd60603d8170 affected < 731a5b6fb4c1705f9405d9029dd64ea81e336207
3936f02bf2d3308a7359dd37dd96cd60603d8170 affected < 91b96dc9cc250cd16751f53de525cf3442ca0962
3936f02bf2d3308a7359dd37dd96cd60603d8170 affected < a1bf79365794783b19f5b09e8a23f7ee311e8931
3936f02bf2d3308a7359dd37dd96cd60603d8170 affected < f7d53dd3f267e46a784f219a75072f2f400d42b9
Linux Linux affected
Version Status Constraints
6.15 affected —
0 unaffected < 6.15
6.18.49 unaffected ≤ 6.18.*
7.1.13 unaffected ≤ 7.1.*
7.2.3 unaffected ≤ 7.2.*
7.3-rc1 unaffected ≤ *

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Fixes

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Workaround

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References
Link Providers
https://git.kernel.org/stable/c/731a5b6fb4c1705f9405d9029dd64ea81e336207 cve-icon cve-icon
https://git.kernel.org/stable/c/91b96dc9cc250cd16751f53de525cf3442ca0962 cve-icon cve-icon
https://git.kernel.org/stable/c/a1bf79365794783b19f5b09e8a23f7ee311e8931 cve-icon cve-icon
https://git.kernel.org/stable/c/f7d53dd3f267e46a784f219a75072f2f400d42b9 cve-icon cve-icon
History

Wed, 09 Sep 2026 18:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-241

Wed, 09 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
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.
Title crypto: krb5 - use kfree_sensitive() for derived key buffers
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-09-09T16:19:44.150Z

Reserved: 2026-08-26T14:34:25.802Z

Link: CVE-2026-80924

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-09T17:17:47.653

Modified: 2026-09-09T17:17:47.653

Link: CVE-2026-80924

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-09T18:30:13Z

Weaknesses