Bug 2396514 (CVE-2022-50407)

Summary: CVE-2022-50407 kernel: crypto: hisilicon/qm - increase the memory of local variables
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 2025-09-18 17:02:40 UTC 
In the Linux kernel, the following vulnerability has been resolved:

crypto: hisilicon/qm - increase the memory of local variables

Increase the buffer to prevent stack overflow by fuzz test. The maximum
length of the qos configuration buffer is 256 bytes. Currently, the value
of the 'val buffer' is only 32 bytes. The sscanf does not check the dest
memory length. So the 'val buffer' may stack overflow.
Comment 1 Keith Grant 2025-09-18 19:06:31 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025091853-CVE-2022-50407-e539@gregkh/T