CVE-2025-38497

usb: gadget: configfs: Fix OOB read on empty string write

Description

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: configfs: Fix OOB read on empty string write When writing an empty string to either 'qw_sign' or 'landingPage' sysfs attributes, the store functions attempt to access page[l - 1] before validating that the length 'l' is greater than zero. This patch fixes the vulnerability by adding a check at the beginning of os_desc_qw_sign_store() and webusb_landingPage_store() to handle the zero-length input case gracefully by returning immediately.

N/A

CVSS

Severity:

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/78b41148cfea2a3f04d87adf3a71b21735820a37
https://git.kernel.org/stable/c/d68b7c8fefbaeae8f065b84e40cf64baf4cc0c76
https://git.kernel.org/stable/c/15a87206879951712915c03c8952a73d6a74721e
https://git.kernel.org/stable/c/2798111f8e504ac747cce911226135d50b8de468
https://git.kernel.org/stable/c/58bdd5160184645771553ea732da5c2887fc9bd1
https://git.kernel.org/stable/c/783ea37b237a9b524f1e5ca018ea17d772ee0ea0
https://git.kernel.org/stable/c/22b7897c289cc25d99c603f5144096142a30d897
https://git.kernel.org/stable/c/3014168731b7930300aab656085af784edc861f6

Frequently Asked Questions

What is the severity of CVE-2025-38497?: CVE-2025-38497 has not yet been assigned a CVSS score.
How to fix CVE-2025-38497?: To fix CVE-2025-38497, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-38497 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-38497 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-38497?: CVE-2025-38497 affects Linux Linux, Linux Linux.

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