Bug 2373653 (CVE-2022-50140)

Summary: CVE-2022-50140 kernel: memstick/ms_block: Fix a memory leak
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Version: unspecifiedCC: dfreiber, drow, jburrell, rhel-process-autobot, vkumar, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-06-18 12:12:23 UTC 
In the Linux kernel, the following vulnerability has been resolved:

memstick/ms_block: Fix a memory leak

'erased_blocks_bitmap' is never freed. As it is allocated at the same time
as 'used_blocks_bitmap', it is likely that it should be freed also at the
same time.

Add the corresponding bitmap_free() in msb_data_clear().
Comment 1 Avinash Hanwate 2025-06-18 21:27:30 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061818-CVE-2022-50140-cb08@gregkh/T