Bug 2337324 (CVE-2024-55639) - CVE-2024-55639 kernel: net: renesas: rswitch: avoid use-after-put for a device tree node
Summary: CVE-2024-55639 kernel: net: renesas: rswitch: avoid use-after-put for a devic...
Keywords:
Status: NEW
Alias: CVE-2024-55639
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: 2025-01-13 11:55 UTC by OSIDB Bzimport
Modified: 2025-01-13 13:50 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2025-01-13 11:55:25 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: renesas: rswitch: avoid use-after-put for a device tree node

The device tree node saved in the rswitch_device structure is used at
several driver locations. So passing this node to of_node_put() after
the first use is wrong.

Move of_node_put() for this node to exit paths.
Comment 1 Avinash Hanwate 2025-01-13 13:46:46 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025011159-CVE-2024-55639-b3d2@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.