Bug 2320693 (CVE-2022-49029) - CVE-2022-49029 kernel: hwmon: (ibmpex) Fix possible UAF when ibmpex_register_bmc() fails
Summary: CVE-2022-49029 kernel: hwmon: (ibmpex) Fix possible UAF when ibmpex_register_...
Keywords:
Status: NEW
Alias: CVE-2022-49029
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-10-21 21:03 UTC by OSIDB Bzimport
Modified: 2025-05-13 08:31 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2025:6966 0 None None None 2025-05-13 08:31:26 UTC

Description OSIDB Bzimport 2024-10-21 21:03:14 UTC 
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().
Comment 1 Avinash Hanwate 2024-10-22 07:48:36 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024102155-CVE-2022-49029-0ffd@gregkh/T
Comment 2 errata-xmlrpc 2025-05-13 08:31:25 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:6966 https://access.redhat.com/errata/RHSA-2025:6966
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