PT-2024-7603 · Linux+6 · Linux Kernel+6
Katya Orlova
·
Published
2024-07-15
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Updated
2026-05-26
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CVE-2024-49992
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.6.58
Description
The issue is related to use-after-free problems in the Linux kernel, specifically in the drm/stm module. The
ltdc load() function calls drm crtc init with planes(), drm universal plane init(), and drm encoder init() with parameters allocated using devm kzalloc(), which can lead to use-after-free issues. The vulnerability may allow an attacker to impact the confidentiality, integrity, and availability of protected information. The ltdc plane create() function in the drivers/gpu/drm/stm/ltdc.c module is also affected.Recommendations
For Linux kernel versions prior to 6.6.58, update to version 6.6.58 or later to resolve the issue.
As a temporary workaround, consider using allocations managed by the DRM framework instead of
devm kzalloc() to avoid use-after-free issues.
Restrict access to the ltdc plane create() function in the drivers/gpu/drm/stm/ltdc.c module to minimize the risk of exploitation.Exploit
Fix
DoS
Use After Free
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Debian
Linuxmint
Linux Kernel
Red Os
Ubuntu