Bug 2373678 (CVE-2022-50088)

Summary: CVE-2022-50088 kernel: mm/damon/reclaim: fix potential memory leak in damon_reclaim_init()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-06-18 12:13:27 UTC 
In the Linux kernel, the following vulnerability has been resolved:

mm/damon/reclaim: fix potential memory leak in damon_reclaim_init()

damon_reclaim_init() allocates a memory chunk for ctx with
damon_new_ctx().  When damon_select_ops() fails, ctx is not released,
which will lead to a memory leak.

We should release the ctx with damon_destroy_ctx() when damon_select_ops()
fails to fix the memory leak.
Comment 1 Avinash Hanwate 2025-06-18 15:45:52 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025061859-CVE-2022-50088-32bf@gregkh/T