Bug 2492364 (CVE-2026-52972) - CVE-2026-52972 kernel: crypto: af_alg - Cap AEAD AD length to 0x80000000
Summary: CVE-2026-52972 kernel: crypto: af_alg - Cap AEAD AD length to 0x80000000
Keywords:
Status: NEW
Alias: CVE-2026-52972
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-24 18:08 UTC by OSIDB Bzimport
Modified: 2026-09-28 18:43 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:72623 0 None None None 2026-09-28 18:43:44 UTC

Description OSIDB Bzimport 2026-06-24 18:08:03 UTC 
In the Linux kernel, the following vulnerability has been resolved:

crypto: af_alg - Cap AEAD AD length to 0x80000000

In order to prevent arithmetic overflows when checking the TX
buffer size, cap the associated data length to 0x80000000.
Comment 1 Keith Grant 2026-06-26 19:49:30 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026062439-CVE-2026-52972-7d96@gregkh/T
Comment 3 Jon Orris 2026-09-28 18:43:43 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:72623 https://access.redhat.com/errata/RHSA-2026:72623
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