Bug 2420283 (CVE-2023-53799)

Summary: CVE-2023-53799 kernel: crypto: api - Use work queue in crypto_destroy_instance
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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OS: Linux   
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Description OSIDB Bzimport 2025-12-09 01:05:44 UTC 
In the Linux kernel, the following vulnerability has been resolved:

crypto: api - Use work queue in crypto_destroy_instance

The function crypto_drop_spawn expects to be called in process
context.  However, when an instance is unregistered while it still
has active users, the last user may cause the instance to be freed
in atomic context.

Fix this by delaying the freeing to a work queue.
Comment 1 Alexander B 2025-12-10 04:32:58 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025120942-CVE-2023-53799-8397@gregkh/T