Bug 2531056 (CVE-2026-80924) - CVE-2026-80924 kernel: crypto: krb5 - use kfree_sensitive() for derived key buffers
Summary: CVE-2026-80924 kernel: crypto: krb5 - use kfree_sensitive() for derived key b...
Keywords:
Status: NEW
Alias: CVE-2026-80924
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-09 16:36 UTC by OSIDB Bzimport
Modified: 2026-11-01 06:39 UTC (History)
17 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-09-09 16:36:36 UTC 
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.
Comment 1 gkamathe 2026-09-10 04:58:44 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80924.mbox
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