crypto: krb5 - use kfree_sensitive() for derived key buffers

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-80924
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-09 17:17:47 UTC
Updated2026-09-10 06:17:06 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
3.1CNADECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3936f02bf2d3308a7359dd37dd96cd60603d8170 731a5b6fb4c1705f9405d9029dd64ea81e336207 git Not specified
CNA Linux Linux affected 3936f02bf2d3308a7359dd37dd96cd60603d8170 91b96dc9cc250cd16751f53de525cf3442ca0962 git Not specified
CNA Linux Linux affected 3936f02bf2d3308a7359dd37dd96cd60603d8170 a1bf79365794783b19f5b09e8a23f7ee311e8931 git Not specified
CNA Linux Linux affected 3936f02bf2d3308a7359dd37dd96cd60603d8170 f7d53dd3f267e46a784f219a75072f2f400d42b9 git Not specified
CNA Linux Linux affected 6.15 Not specified
CNA Linux Linux unaffected 6.15 semver Not specified
CNA Linux Linux unaffected 6.18.49 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.13 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2.3 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/f7d53dd3f267e46a784f219a75072f2f400d42b9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/91b96dc9cc250cd16751f53de525cf3442ca0962 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/731a5b6fb4c1705f9405d9029dd64ea81e336207 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a1bf79365794783b19f5b09e8a23f7ee311e8931 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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