Bug 2348147 (CVE-2022-49653) - CVE-2022-49653 kernel: i2c: piix4: Fix a memory leak in the EFCH MMIO support
Summary: CVE-2022-49653 kernel: i2c: piix4: Fix a memory leak in the EFCH MMIO support
Keywords:
Status: NEW
Alias: CVE-2022-49653
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-02-26 03:19 UTC by OSIDB Bzimport
Modified: 2025-03-24 16:26 UTC (History)
4 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2025-02-26 03:19:14 UTC 
In the Linux kernel, the following vulnerability has been resolved:

i2c: piix4: Fix a memory leak in the EFCH MMIO support

The recently added support for EFCH MMIO regions introduced a memory
leak in that code path. The leak is caused by the fact that
release_resource() merely removes the resource from the tree but does
not free its memory. We need to call release_mem_region() instead,
which does free the memory. As a nice side effect, this brings back
some symmetry between the legacy and MMIO paths.
Comment 3 Avinash Hanwate 2025-02-27 17:23:59 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025022620-CVE-2022-49653-f6b6@gregkh/T
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