CVE-2026-64245: fbdev: modedb: fix a possible UAF in fb_find_mode()
Published Jul 24, 2026
·Updated
fbdev: modedb: fix a possible UAF in fbfindmode()
Affected Software
6 affected componentsFixes available
Linux Linux kernel
Microsoft azl3 kernel 6.6.144.1-1<6.6.150.1-1
6.6.150.1-1
Linux Linux kernel>=6.4<6.6.144
Linux Linux kernel>=6.7<6.12.95
Linux Linux kernel>=6.13<6.18.38
Linux Linux kernel>=6.19<7.1.3
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 6.6.150.1-1 - Compensating control
In the Linux kernel fbdev modedb fb_find_mode() function, use scope-based resource management for cleanup so mode_option_buf remains allocated until the end of the function, while name may still alias and access it.
Event History
Jul 24, 2026
CVE Published
via MITRE·03:31 PM
Data Sourced
via MITRE·03:31 PM
Description
Data Sourced
via NVD·04:16 PM
RemedyDescriptionSeverityWeaknessAffected Software
Jul 26, 2026
Data Sourced
via Microsoft·08:03 AM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What level of access is required to exploit this issue?
The vulnerability has a local attack vector and requires low privileges. No user interaction is required.
2
Which systems are identified as affected?
The affected software listed is the Linux kernel and Microsoft azl3 kernel version 6.6.144.1-1.
3
Is a fix available?
Yes. A patch is available, with stable kernel references provided for the fix.