Bug 2406195 (CVE-2025-40019)

Summary: CVE-2025-40019 kernel: crypto: essiv - Check ssize for decryption and in-place encryption
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedKeywords: Security
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OS: Linux   
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Description OSIDB Bzimport 2025-10-24 12:01:25 UTC 
In the Linux kernel, the following vulnerability has been resolved:

crypto: essiv - Check ssize for decryption and in-place encryption

Move the ssize check to the start in essiv_aead_crypt so that
it's also checked for decryption and in-place encryption.
Comment 1 Keith Grant 2025-10-24 13:35:45 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025102433-CVE-2025-40019-a8e7@gregkh/T