CVE-2022-49653

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

Medium · published February 26, 2025

CVSS v3.1
5.5
EPSS
0%
Percentile
19.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00281 · 19.5th percentile
Published
2025-02-26T02:23Z
EPSS history
Timeline
  • 26 FEB 02:23Z
    i2c: piix4: Fix a memory leak in the EFCH MMIO support
    cvelistv5