CVE-2026-72273: fbdev: efifb: fix memory leak in efifb_probe()

Severity: unknown
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-15 · updated 2026-08-17

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.

Affected products

Linux kernel: 6.4 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/475383daf5f855f5b2c3a9aa801f69b69a81799e
https://git.kernel.org/stable/c/5276e3f75ddb51f980a8903f4b39e73cf42415e5
https://git.kernel.org/stable/c/9b6eaf101656958397a6012bf43f6e2e42c9e5cb
https://git.kernel.org/stable/c/fafb2e08741b20027cee77918816de29a32d6fd6
https://git.kernel.org/stable/c/febb5b4f67ace78d6b6862cc3c853b64710afb6c

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