CVE-2025-38497
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 0.16% probability · 5th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- linux/linux kernel · debian/debian linux
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/15a87206879951712915c03c8952a73d6a74721ePatch
- https://git.kernel.org/stable/c/22b7897c289cc25d99c603f5144096142a30d897Patch
- https://git.kernel.org/stable/c/2798111f8e504ac747cce911226135d50b8de468Patch
- https://git.kernel.org/stable/c/3014168731b7930300aab656085af784edc861f6Patch
- https://git.kernel.org/stable/c/58bdd5160184645771553ea732da5c2887fc9bd1Patch
- https://git.kernel.org/stable/c/783ea37b237a9b524f1e5ca018ea17d772ee0ea0Patch
- https://git.kernel.org/stable/c/78b41148cfea2a3f04d87adf3a71b21735820a37Patch
- https://git.kernel.org/stable/c/d68b7c8fefbaeae8f065b84e40cf64baf4cc0c76Patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.htmlThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.