{"id":"CVE-2026-99068","state":"PUBLISHED","title":"ALSA: ctxfi: Fix memory leakage when clearing DAO input mappers","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ctxfi: Fix memory leakage when clearing DAO input mappers\n\nCommit e576e7843c0d (\"ALSA: ctxfi: Simplify dao_clear_{left,right}_input() functions\")\ncentralized the DAO input mapper clearing logic in\ndao_clear_input(), but omitted the kfree() calls.\n\nIt removes the mapper entries from the list and sets their pointers\nto NULL without freeing the allocated array. This leaks memory each\ntime dao_clear_input() is called.\n\nStore the base pointer of the allocation before clearing the mapper\nentries and free the array after removing entries from the list.","publishedAt":"2026-10-23T12:23:11.461Z","updatedAt":"2026-10-23T12:23:11.461Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e576e7843c0d65b82d4092e5b386d9fbf5bc10c3","status":"affected","lessThan":"f7dc71c1ce885f5d9f128037ebc75d9c0356e060","versionType":"git"},{"version":"e576e7843c0d65b82d4092e5b386d9fbf5bc10c3","status":"affected","lessThan":"0919d8dd19f92e12829055c75fced9a454d644bf","versionType":"git"},{"version":"e576e7843c0d65b82d4092e5b386d9fbf5bc10c3","status":"affected","lessThan":"593d46fc6af9a0178a46e77d6d24b20d2314165f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/pci/ctxfi/ctdaio.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.14","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.11","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/pci/ctxfi/ctdaio.c"]}],"references":["https://git.kernel.org/stable/c/f7dc71c1ce885f5d9f128037ebc75d9c0356e060","https://git.kernel.org/stable/c/0919d8dd19f92e12829055c75fced9a454d644bf","https://git.kernel.org/stable/c/593d46fc6af9a0178a46e77d6d24b20d2314165f"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/99xxx/CVE-2026-99068.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-99068","state":"PUBLISHED","datePublished":"2026-10-23T12:23:11.461Z","dateUpdated":"2026-10-23T12:23:11.461Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.389Z"},"containers":{"cna":{"title":"ALSA: ctxfi: Fix memory leakage when clearing DAO input mappers","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ctxfi: Fix memory leakage when clearing DAO input mappers\n\nCommit e576e7843c0d (\"ALSA: ctxfi: Simplify dao_clear_{left,right}_input() functions\")\ncentralized the DAO input mapper clearing logic in\ndao_clear_input(), but omitted the kfree() calls.\n\nIt removes the mapper entries from the list and sets their pointers\nto NULL without freeing the allocated array. This leaks memory each\ntime dao_clear_input() is called.\n\nStore the base pointer of the allocation before clearing the mapper\nentries and free the array after removing entries from the list."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e576e7843c0d65b82d4092e5b386d9fbf5bc10c3","status":"affected","lessThan":"f7dc71c1ce885f5d9f128037ebc75d9c0356e060","versionType":"git"},{"version":"e576e7843c0d65b82d4092e5b386d9fbf5bc10c3","status":"affected","lessThan":"0919d8dd19f92e12829055c75fced9a454d644bf","versionType":"git"},{"version":"e576e7843c0d65b82d4092e5b386d9fbf5bc10c3","status":"affected","lessThan":"593d46fc6af9a0178a46e77d6d24b20d2314165f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/pci/ctxfi/ctdaio.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.14","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.11","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["sound/pci/ctxfi/ctdaio.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/f7dc71c1ce885f5d9f128037ebc75d9c0356e060"},{"url":"https://git.kernel.org/stable/c/0919d8dd19f92e12829055c75fced9a454d644bf"},{"url":"https://git.kernel.org/stable/c/593d46fc6af9a0178a46e77d6d24b20d2314165f"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-23T12:23:11.461Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"7.2.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}