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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-23414 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: tls: Purge async_hold in tls_decrypt_async_wait() The async_hold queue pins encrypted input skbs while the AEAD engine references their scatterlist data. Once tls_decrypt_async_wait() returns, every AEAD operation has completed and the engine no longer references those skbs, so they can be freed unconditionally. A subsequent patch adds batch async decryption to tls_sw_read_sock(), introducing a new call site that must drain pending AEAD operations and release held skbs. Move __skb_queue_purge(&ctx->async_hold) into tls_decrypt_async_wait() so the purge is centralized and every caller -- recvmsg's drain path, the -EBUSY fallback in tls_do_decryption(), and the new read_sock batch path -- releases held skbs on synchronization without each site managing the purge independently. This fixes a leak when tls_strp_msg_hold() fails part-way through, after having added some cloned skbs to the async_hold queue. tls_decrypt_sg() will then call tls_decrypt_async_wait() to process all pending decrypts, and drop back to synchronous mode, but tls_sw_recvmsg() only flushes the async_hold queue when one record has been processed in "fully-async" mode, which may not be the case here. [[email protected]: added leak comment]


Metrics

 
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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://cert-portal.siemens.com/productcert/html/ssa-019113.html siemens-SADP
https://cert-portal.siemens.com/productcert/html/ssa-082556.html siemens-SADP
https://git.kernel.org/stable/c/2dcf324855c34e7f934ce978aa19b645a8f3ee71 kernel.org Patch 
https://git.kernel.org/stable/c/6dc11e0bd0a5466bcc76d275c09e5537bd0597dd kernel.org Patch 
https://git.kernel.org/stable/c/84a8335d8300576f1b377ae24abca1d9f197807f kernel.org Patch 
https://git.kernel.org/stable/c/9f557c7eae127b44d2e863917dc986a4b6cb1269 kernel.org Patch 
https://git.kernel.org/stable/c/ac435be7c7613eb13a5a8ceb5182e10b50c9ce87 kernel.org Patch 
https://git.kernel.org/stable/c/fd8037e1f18ca5336934d0e0e7e1a4fe097e749d kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-401 Missing Release of Memory after Effective Lifetime cwe source acceptance level NIST  

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Change History

6 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-23414
NVD Published Date:
04/02/2026
NVD Last Modified:
07/14/2026
Source:
kernel.org