vulnerability

Red Hat: CVE-2022-49029: kernel: hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:M/C:C/I:C/A:C)
Published
Oct 21, 2024
Added
May 15, 2025
Modified
May 15, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails

Smatch report warning as follows:

drivers/hwmon/ibmpex.c:509 ibmpex_register_bmc() warn:
'&data->list' not removed from list

If ibmpex_find_sensors() fails in ibmpex_register_bmc(), data will
be freed, but data->list will not be removed from driver_data.bmc_data,
then list traversal may cause UAF.

Fix by removeing it from driver_data.bmc_data before free().

Solution(s)

redhat-upgrade-kernelredhat-upgrade-kernel-rt
Title
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