{"id":"CVE-2026-72241","state":"PUBLISHED","title":"leds: uleds: Fix potential buffer overread","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nleds: uleds: Fix potential buffer overread\n\nThe name string supplied by userspace is not guaranteed to be\nnull-terminated, so using strchr() on it might result in a buffer\noverread. The same thing will happen when said string is used by\nthe LED class device.\n\nFix this by using strnchr() instead and explicitly check that\nthe name string is properly null-terminated.","publishedAt":"2026-08-15T05:54:29.640Z","updatedAt":"2026-08-17T05:10:59.303Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"a84c59121dfdc7b324f72dc5012aa8fe5e7d2d7b","versionType":"git"},{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"5bb89e23729f3a59592d699a437bb001f24b8f67","versionType":"git"},{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"5ad6f6c9209e5777b896def9876708853ae26d0d","versionType":"git"},{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"8bf529571cca60fb8af65d6d034bdbbc99a9127c","versionType":"git"},{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"a91ac9fdac7385cbc98aeae55b4e5302125497a2","versionType":"git"},{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"6dd51d84a9502553e58beade72823258871b8111","versionType":"git"},{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"263ccdd627caeda6e980ed3c6e32bb4fd6b380b1","versionType":"git"},{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"c19fe864f667afc49d1391d764e20b66555bcf7a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/leds/uleds.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.10","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/leds/uleds.c"]}],"references":["https://git.kernel.org/stable/c/a84c59121dfdc7b324f72dc5012aa8fe5e7d2d7b","https://git.kernel.org/stable/c/5bb89e23729f3a59592d699a437bb001f24b8f67","https://git.kernel.org/stable/c/5ad6f6c9209e5777b896def9876708853ae26d0d","https://git.kernel.org/stable/c/8bf529571cca60fb8af65d6d034bdbbc99a9127c","https://git.kernel.org/stable/c/a91ac9fdac7385cbc98aeae55b4e5302125497a2","https://git.kernel.org/stable/c/6dd51d84a9502553e58beade72823258871b8111","https://git.kernel.org/stable/c/263ccdd627caeda6e980ed3c6e32bb4fd6b380b1","https://git.kernel.org/stable/c/c19fe864f667afc49d1391d764e20b66555bcf7a"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72241.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72241","state":"PUBLISHED","datePublished":"2026-08-15T05:54:29.640Z","dateUpdated":"2026-08-17T05:10:59.303Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-09T03:40:39.914Z"},"containers":{"cna":{"title":"leds: uleds: Fix potential buffer overread","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nleds: uleds: Fix potential buffer overread\n\nThe name string supplied by userspace is not guaranteed to be\nnull-terminated, so using strchr() on it might result in a buffer\noverread. The same thing will happen when said string is used by\nthe LED class device.\n\nFix this by using strnchr() instead and explicitly check that\nthe name string is properly null-terminated."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"a84c59121dfdc7b324f72dc5012aa8fe5e7d2d7b","versionType":"git"},{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"5bb89e23729f3a59592d699a437bb001f24b8f67","versionType":"git"},{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"5ad6f6c9209e5777b896def9876708853ae26d0d","versionType":"git"},{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"8bf529571cca60fb8af65d6d034bdbbc99a9127c","versionType":"git"},{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"a91ac9fdac7385cbc98aeae55b4e5302125497a2","versionType":"git"},{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"6dd51d84a9502553e58beade72823258871b8111","versionType":"git"},{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"263ccdd627caeda6e980ed3c6e32bb4fd6b380b1","versionType":"git"},{"version":"e381322b0190c1253d347de3f28b5c37756fb651","status":"affected","lessThan":"c19fe864f667afc49d1391d764e20b66555bcf7a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/leds/uleds.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.10","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/leds/uleds.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/a84c59121dfdc7b324f72dc5012aa8fe5e7d2d7b"},{"url":"https://git.kernel.org/stable/c/5bb89e23729f3a59592d699a437bb001f24b8f67"},{"url":"https://git.kernel.org/stable/c/5ad6f6c9209e5777b896def9876708853ae26d0d"},{"url":"https://git.kernel.org/stable/c/8bf529571cca60fb8af65d6d034bdbbc99a9127c"},{"url":"https://git.kernel.org/stable/c/a91ac9fdac7385cbc98aeae55b4e5302125497a2"},{"url":"https://git.kernel.org/stable/c/6dd51d84a9502553e58beade72823258871b8111"},{"url":"https://git.kernel.org/stable/c/263ccdd627caeda6e980ed3c6e32bb4fd6b380b1"},{"url":"https://git.kernel.org/stable/c/c19fe864f667afc49d1391d764e20b66555bcf7a"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:10:59.303Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.10","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}