{"id":"CVE-2025-38497","state":"PUBLISHED","title":"usb: gadget: configfs: Fix OOB read on empty string write","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: configfs: Fix OOB read on empty string write\n\nWhen writing an empty string to either 'qw_sign' or 'landingPage'\nsysfs attributes, the store functions attempt to access page[l - 1]\nbefore validating that the length 'l' is greater than zero.\n\nThis patch fixes the vulnerability by adding a check at the beginning\nof os_desc_qw_sign_store() and webusb_landingPage_store() to handle\nthe zero-length input case gracefully by returning immediately.","publishedAt":"2025-07-28T11:22:05.855Z","updatedAt":"2026-05-11T21:29:09.774Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"78b41148cfea2a3f04d87adf3a71b21735820a37","versionType":"git"},{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"d68b7c8fefbaeae8f065b84e40cf64baf4cc0c76","versionType":"git"},{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"15a87206879951712915c03c8952a73d6a74721e","versionType":"git"},{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"2798111f8e504ac747cce911226135d50b8de468","versionType":"git"},{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"58bdd5160184645771553ea732da5c2887fc9bd1","versionType":"git"},{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"783ea37b237a9b524f1e5ca018ea17d772ee0ea0","versionType":"git"},{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"22b7897c289cc25d99c603f5144096142a30d897","versionType":"git"},{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"3014168731b7930300aab656085af784edc861f6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/gadget/configfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.16","versionType":"semver"},{"version":"5.4.297","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.241","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.190","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.147","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.100","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.40","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.8","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/gadget/configfs.c"]}],"references":["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","https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html","https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/38xxx/CVE-2025-38497.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38497","state":"PUBLISHED","datePublished":"2025-07-28T11:22:05.855Z","dateUpdated":"2026-05-11T21:29:09.774Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:24.022Z"},"containers":{"cna":{"title":"usb: gadget: configfs: Fix OOB read on empty string write","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: configfs: Fix OOB read on empty string write\n\nWhen writing an empty string to either 'qw_sign' or 'landingPage'\nsysfs attributes, the store functions attempt to access page[l - 1]\nbefore validating that the length 'l' is greater than zero.\n\nThis patch fixes the vulnerability by adding a check at the beginning\nof os_desc_qw_sign_store() and webusb_landingPage_store() to handle\nthe zero-length input case gracefully by returning immediately."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"78b41148cfea2a3f04d87adf3a71b21735820a37","versionType":"git"},{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"d68b7c8fefbaeae8f065b84e40cf64baf4cc0c76","versionType":"git"},{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"15a87206879951712915c03c8952a73d6a74721e","versionType":"git"},{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"2798111f8e504ac747cce911226135d50b8de468","versionType":"git"},{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"58bdd5160184645771553ea732da5c2887fc9bd1","versionType":"git"},{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"783ea37b237a9b524f1e5ca018ea17d772ee0ea0","versionType":"git"},{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"22b7897c289cc25d99c603f5144096142a30d897","versionType":"git"},{"version":"87213d388e927aaa88b21d5ff7e1f75ca2288da1","status":"affected","lessThan":"3014168731b7930300aab656085af784edc861f6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/gadget/configfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.16","versionType":"semver"},{"version":"5.4.297","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.241","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.190","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.147","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.100","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.40","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.8","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/gadget/configfs.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/78b41148cfea2a3f04d87adf3a71b21735820a37"},{"url":"https://git.kernel.org/stable/c/d68b7c8fefbaeae8f065b84e40cf64baf4cc0c76"},{"url":"https://git.kernel.org/stable/c/15a87206879951712915c03c8952a73d6a74721e"},{"url":"https://git.kernel.org/stable/c/2798111f8e504ac747cce911226135d50b8de468"},{"url":"https://git.kernel.org/stable/c/58bdd5160184645771553ea732da5c2887fc9bd1"},{"url":"https://git.kernel.org/stable/c/783ea37b237a9b524f1e5ca018ea17d772ee0ea0"},{"url":"https://git.kernel.org/stable/c/22b7897c289cc25d99c603f5144096142a30d897"},{"url":"https://git.kernel.org/stable/c/3014168731b7930300aab656085af784edc861f6"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:29:09.774Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.4.297"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.10.241"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"5.15.190"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.1.147"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.6.100"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.12.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.15.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.16","versionEndExcluding":"6.16"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T17:39:05.811Z"}}]}}}