CVE-2026-72273
Received Received - Intake

BaseFortify

Publication date: 2026-08-15

Last updated on: 2026-08-15

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: fbdev: efifb: fix memory leak in efifb_probe() Since commit 73ce73c30ba9 ("fbdev: Transfer video= option strings to caller; clarify ownership") the string returned from fb_get_options() is expected to be freed by the caller, but the string is not freed in efifb_probe(). Fix that by freeing the option string after setup.

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Meta Information

Published
2026-08-15
Last Modified
2026-08-15
Generated
2026-08-15
AI Q&A
2026-08-15
EPSS Evaluated
N/A
NVD
CVE-2026-72273
EUVD
EUVD-2026-59172

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a memory leak vulnerability in the Linux kernel's efifb driver. The issue occurs in the efifb_probe function where a string returned from fb_get_options is expected to be freed by the caller but isn't, causing memory to be leaked during system boot when the efifb driver initializes.

Detection Guidance

This vulnerability is specific to the Linux kernel's efifb driver and involves a memory leak in efifb_probe(). Detection requires checking kernel logs for memory allocation warnings or using kernel debugging tools like kmemleak to identify unreleased memory.

Impact Analysis

The memory leak could gradually consume system memory over time, potentially leading to reduced performance or system instability. It primarily affects systems using UEFI firmware with efifb graphics support during boot.

Mitigation Strategies

Apply the latest kernel update that includes the fix for this issue. If an update is not immediately available, consider disabling the efifb driver if not required, as the vulnerability is limited to its probe function.

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