Improper Validation of Array Index Affecting kernel-core package, versions <0:5.14.0-70.93.2.el9_0
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Test your applications- Snyk ID SNYK-RHEL9-KERNELCORE-6423458
- published 12 Mar 2024
- disclosed 12 Apr 2023
Introduced: 12 Apr 2023
CVE-2023-38409 Open this link in a new tabHow to fix?
Upgrade RHEL:9 kernel-core to version 0:5.14.0-70.93.2.el9_0 or higher.
This issue was patched in RHSA-2024:1250.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-core package and not the kernel-core package as distributed by RHEL.
See How to fix? for RHEL:9 relevant fixed versions and status.
An issue was discovered in set_con2fb_map in drivers/video/fbdev/core/fbcon.c in the Linux kernel before 6.2.12. Because an assignment occurs only for the first vc, the fbcon_registered_fb and fbcon_display arrays can be desynchronized in fbcon_mode_deleted (the con2fb_map points at the old fb_info).