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.
Product status
87213d388e927aaa88b21d5ff7e1f75ca2288da1 (git) before 78b41148cfea2a3f04d87adf3a71b21735820a37
87213d388e927aaa88b21d5ff7e1f75ca2288da1 (git) before d68b7c8fefbaeae8f065b84e40cf64baf4cc0c76
87213d388e927aaa88b21d5ff7e1f75ca2288da1 (git) before 15a87206879951712915c03c8952a73d6a74721e
87213d388e927aaa88b21d5ff7e1f75ca2288da1 (git) before 2798111f8e504ac747cce911226135d50b8de468
87213d388e927aaa88b21d5ff7e1f75ca2288da1 (git) before 58bdd5160184645771553ea732da5c2887fc9bd1
87213d388e927aaa88b21d5ff7e1f75ca2288da1 (git) before 783ea37b237a9b524f1e5ca018ea17d772ee0ea0
87213d388e927aaa88b21d5ff7e1f75ca2288da1 (git) before 22b7897c289cc25d99c603f5144096142a30d897
87213d388e927aaa88b21d5ff7e1f75ca2288da1 (git) before 3014168731b7930300aab656085af784edc861f6
3.16
Any version before 3.16
5.4.297 (semver)
5.10.241 (semver)
5.15.190 (semver)
6.1.147 (semver)
6.6.100 (semver)
6.12.40 (semver)
6.15.8 (semver)
6.16 (original_commit_for_fix)
References
lists.debian.org/debian-lts-announce/2025/10/msg00008.html
lists.debian.org/debian-lts-announce/2025/10/msg00007.html
git.kernel.org/...c/78b41148cfea2a3f04d87adf3a71b21735820a37
git.kernel.org/...c/d68b7c8fefbaeae8f065b84e40cf64baf4cc0c76
git.kernel.org/...c/15a87206879951712915c03c8952a73d6a74721e
git.kernel.org/...c/2798111f8e504ac747cce911226135d50b8de468
git.kernel.org/...c/58bdd5160184645771553ea732da5c2887fc9bd1
git.kernel.org/...c/783ea37b237a9b524f1e5ca018ea17d772ee0ea0
git.kernel.org/...c/22b7897c289cc25d99c603f5144096142a30d897
git.kernel.org/...c/3014168731b7930300aab656085af784edc861f6