Bug 2414524 (CVE-2025-40176) - CVE-2025-40176 kernel: tls: wait for pending async decryptions if tls_strp_msg_hold fails
Summary: CVE-2025-40176 kernel: tls: wait for pending async decryptions if tls_strp_ms...
Keywords:
Status: NEW
Alias: CVE-2025-40176
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-11-12 11:05 UTC by OSIDB Bzimport
Modified: 2025-11-13 12:30 UTC (History)
0 users

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2025-11-12 11:05:26 UTC
In the Linux kernel, the following vulnerability has been resolved:

tls: wait for pending async decryptions if tls_strp_msg_hold fails

Async decryption calls tls_strp_msg_hold to create a clone of the
input skb to hold references to the memory it uses. If we fail to
allocate that clone, proceeding with async decryption can lead to
various issues (UAF on the skb, writing into userspace memory after
the recv() call has returned).

In this case, wait for all pending decryption requests.


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