{"id":"CVE-2026-23078","state":"PUBLISHED","title":"ALSA: scarlett2: Fix buffer overflow in config retrieval","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: scarlett2: Fix buffer overflow in config retrieval\n\nThe scarlett2_usb_get_config() function has a logic error in the\nendianness conversion code that can cause buffer overflows when\ncount > 1.\n\nThe code checks `if (size == 2)` where `size` is the total buffer size in\nbytes, then loops `count` times treating each element as u16 (2 bytes).\nThis causes the loop to access `count * 2` bytes when the buffer only\nhas `size` bytes allocated.\n\nFix by checking the element size (config_item->size) instead of the\ntotal buffer size. This ensures the endianness conversion matches the\nactual element type.","publishedAt":"2026-02-04T16:08:03.283Z","updatedAt":"2026-05-11T21:59:34.569Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ac34df733d2dfe3b553897a1e9e1a44414f09834","status":"affected","lessThan":"d5e80d1f97ae55bcea1426f551e4419245b41b9c","versionType":"git"},{"version":"ac34df733d2dfe3b553897a1e9e1a44414f09834","status":"affected","lessThan":"51049f6e3f05d70660e2458ad3bb302a3721b751","versionType":"git"},{"version":"ac34df733d2dfe3b553897a1e9e1a44414f09834","status":"affected","lessThan":"91a756d22f0482eac5bedb113c8922f90b254449","versionType":"git"},{"version":"ac34df733d2dfe3b553897a1e9e1a44414f09834","status":"affected","lessThan":"27049f50be9f5ae3a62d272128ce0b381cb26a24","versionType":"git"},{"version":"ac34df733d2dfe3b553897a1e9e1a44414f09834","status":"affected","lessThan":"31a3eba5c265a763260976674a22851e83128f6d","versionType":"git"},{"version":"ac34df733d2dfe3b553897a1e9e1a44414f09834","status":"affected","lessThan":"6f5c69f72e50d51be3a8c028ae7eda42c82902cb","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/mixer_scarlett2.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.14","versionType":"semver"},{"version":"5.15.199","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.162","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.122","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.68","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.8","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/mixer_scarlett2.c"]}],"references":["https://git.kernel.org/stable/c/d5e80d1f97ae55bcea1426f551e4419245b41b9c","https://git.kernel.org/stable/c/51049f6e3f05d70660e2458ad3bb302a3721b751","https://git.kernel.org/stable/c/91a756d22f0482eac5bedb113c8922f90b254449","https://git.kernel.org/stable/c/27049f50be9f5ae3a62d272128ce0b381cb26a24","https://git.kernel.org/stable/c/31a3eba5c265a763260976674a22851e83128f6d","https://git.kernel.org/stable/c/6f5c69f72e50d51be3a8c028ae7eda42c82902cb"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23078.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23078","state":"PUBLISHED","datePublished":"2026-02-04T16:08:03.283Z","dateUpdated":"2026-05-11T21:59:34.569Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:37:45.959Z"},"containers":{"cna":{"title":"ALSA: scarlett2: Fix buffer overflow in config retrieval","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: scarlett2: Fix buffer overflow in config retrieval\n\nThe scarlett2_usb_get_config() function has a logic error in the\nendianness conversion code that can cause buffer overflows when\ncount > 1.\n\nThe code checks `if (size == 2)` where `size` is the total buffer size in\nbytes, then loops `count` times treating each element as u16 (2 bytes).\nThis causes the loop to access `count * 2` bytes when the buffer only\nhas `size` bytes allocated.\n\nFix by checking the element size (config_item->size) instead of the\ntotal buffer size. This ensures the endianness conversion matches the\nactual element type."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ac34df733d2dfe3b553897a1e9e1a44414f09834","status":"affected","lessThan":"d5e80d1f97ae55bcea1426f551e4419245b41b9c","versionType":"git"},{"version":"ac34df733d2dfe3b553897a1e9e1a44414f09834","status":"affected","lessThan":"51049f6e3f05d70660e2458ad3bb302a3721b751","versionType":"git"},{"version":"ac34df733d2dfe3b553897a1e9e1a44414f09834","status":"affected","lessThan":"91a756d22f0482eac5bedb113c8922f90b254449","versionType":"git"},{"version":"ac34df733d2dfe3b553897a1e9e1a44414f09834","status":"affected","lessThan":"27049f50be9f5ae3a62d272128ce0b381cb26a24","versionType":"git"},{"version":"ac34df733d2dfe3b553897a1e9e1a44414f09834","status":"affected","lessThan":"31a3eba5c265a763260976674a22851e83128f6d","versionType":"git"},{"version":"ac34df733d2dfe3b553897a1e9e1a44414f09834","status":"affected","lessThan":"6f5c69f72e50d51be3a8c028ae7eda42c82902cb","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/mixer_scarlett2.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.14","versionType":"semver"},{"version":"5.15.199","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.162","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.122","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.68","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.8","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/usb/mixer_scarlett2.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/d5e80d1f97ae55bcea1426f551e4419245b41b9c"},{"url":"https://git.kernel.org/stable/c/51049f6e3f05d70660e2458ad3bb302a3721b751"},{"url":"https://git.kernel.org/stable/c/91a756d22f0482eac5bedb113c8922f90b254449"},{"url":"https://git.kernel.org/stable/c/27049f50be9f5ae3a62d272128ce0b381cb26a24"},{"url":"https://git.kernel.org/stable/c/31a3eba5c265a763260976674a22851e83128f6d"},{"url":"https://git.kernel.org/stable/c/6f5c69f72e50d51be3a8c028ae7eda42c82902cb"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:59:34.569Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"5.15.199"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.1.162"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.6.122"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.12.68"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.18.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}