Bug 2426040 (CVE-2022-50785)

Summary: CVE-2022-50785 kernel: fsi: occ: Prevent use after free
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 2025-12-30 13:04:09 UTC 
In the Linux kernel, the following vulnerability has been resolved:

fsi: occ: Prevent use after free

Use get_device and put_device in the open and close functions to
make sure the device doesn't get freed while a file descriptor is
open.
Also, lock around the freeing of the device buffer and check the
buffer before using it in the submit function.
Comment 1 Alexander B 2025-12-31 13:41:34 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123028-CVE-2022-50785-ed95@gregkh/T