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LIN1021-18055 : Security Advisory - linux - CVE-2023-53373

Created: Sep 19, 2025    Updated: Oct 14, 2025
Resolved Date: Oct 13, 2025
Found In Version: 10.21.20.1
Fix Version: 10.21.20.17
Severity: Standard
Applicable for: Wind River Linux LTS 21
Component/s: Kernel

Description

In the Linux kernel, the following vulnerability has been resolved:  crypto: seqiv - Handle EBUSY correctly  As it is seqiv only handles the special return value of EINPROGERSS, which means that in all other cases it will free data related to the request.  However, as the caller of seqiv may specify MAY_BACKLOG, we also need to expect EBUSY and treat it in the same way.  Otherwise backlogged requests will trigger a use-after-free.
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