{"api_version":"1","generated_at":"2026-08-20T18:50:19+00:00","cve":"CVE-2026-74502","urls":{"html":"https://cve.report/CVE-2026-74502","api":"https://cve.report/api/cve/CVE-2026-74502.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74502","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74502"},"summary":{"title":"ALSA: ump: fix double free of out_cvts on rawmidi error","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ump: fix double free of out_cvts on rawmidi error\n\nsnd_ump_attach_legacy_rawmidi() allocates the legacy conversion array\nump->out_cvts and, on the snd_rawmidi_new() error path, frees it with\nkfree() but leaves ump->out_cvts pointing at the freed memory.  When the\nendpoint is later torn down, snd_ump_endpoint_free() frees ump->out_cvts\na second time, resulting in a double free.\n\nThe host snd-usb-audio driver attaches the legacy rawmidi for any USB\nMIDI 2.0 (UMP) device, so a device that makes snd_rawmidi_new() fail\nreaches this path on enumeration.\n\nClear ump->out_cvts after freeing it on the error path so it is not\nfreed again during teardown.\n\nDiscovered by XBOW, triaged by Baul Lee <baul.lee@xbow.com>","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 13:17:55","updated_at":"2026-08-17 06:19:46"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/70c977815af0d997feb2d0c5d284d55689bf7051","name":"https://git.kernel.org/stable/c/70c977815af0d997feb2d0c5d284d55689bf7051","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e84d2e53a05c78a04d1343eeb0f31a79456e79fc","name":"https://git.kernel.org/stable/c/e84d2e53a05c78a04d1343eeb0f31a79456e79fc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c57001f55f97ef856fb6527e376c5c4a056a53a4","name":"https://git.kernel.org/stable/c/c57001f55f97ef856fb6527e376c5c4a056a53a4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3302aaeac4f7ee6b775850db21d5f61064ce70ad","name":"https://git.kernel.org/stable/c/3302aaeac4f7ee6b775850db21d5f61064ce70ad","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/032746c2dd9a4ea0774b04ac8a29e2ea628f106e","name":"https://git.kernel.org/stable/c/032746c2dd9a4ea0774b04ac8a29e2ea628f106e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74502","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74502","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 33cd7630782df2230529c3e8f1a6d0ae9cd6ab49 e84d2e53a05c78a04d1343eeb0f31a79456e79fc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 33cd7630782df2230529c3e8f1a6d0ae9cd6ab49 3302aaeac4f7ee6b775850db21d5f61064ce70ad git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 33cd7630782df2230529c3e8f1a6d0ae9cd6ab49 032746c2dd9a4ea0774b04ac8a29e2ea628f106e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 33cd7630782df2230529c3e8f1a6d0ae9cd6ab49 c57001f55f97ef856fb6527e376c5c4a056a53a4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 33cd7630782df2230529c3e8f1a6d0ae9cd6ab49 70c977815af0d997feb2d0c5d284d55689bf7051 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.5","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.5 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.151 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.103 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.44 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.8 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"74502","cve":"CVE-2026-74502","epss":"0.001680000","percentile":"0.065070000","score_date":"2026-08-17","updated_at":"2026-08-18 00:11:46"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["sound/core/ump.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e84d2e53a05c78a04d1343eeb0f31a79456e79fc","status":"affected","version":"33cd7630782df2230529c3e8f1a6d0ae9cd6ab49","versionType":"git"},{"lessThan":"3302aaeac4f7ee6b775850db21d5f61064ce70ad","status":"affected","version":"33cd7630782df2230529c3e8f1a6d0ae9cd6ab49","versionType":"git"},{"lessThan":"032746c2dd9a4ea0774b04ac8a29e2ea628f106e","status":"affected","version":"33cd7630782df2230529c3e8f1a6d0ae9cd6ab49","versionType":"git"},{"lessThan":"c57001f55f97ef856fb6527e376c5c4a056a53a4","status":"affected","version":"33cd7630782df2230529c3e8f1a6d0ae9cd6ab49","versionType":"git"},{"lessThan":"70c977815af0d997feb2d0c5d284d55689bf7051","status":"affected","version":"33cd7630782df2230529c3e8f1a6d0ae9cd6ab49","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["sound/core/ump.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.5"},{"lessThan":"6.5","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.151","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.103","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.44","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.151","versionStartIncluding":"6.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.103","versionStartIncluding":"6.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.44","versionStartIncluding":"6.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.8","versionStartIncluding":"6.5","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"6.5","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ump: fix double free of out_cvts on rawmidi error\n\nsnd_ump_attach_legacy_rawmidi() allocates the legacy conversion array\nump->out_cvts and, on the snd_rawmidi_new() error path, frees it with\nkfree() but leaves ump->out_cvts pointing at the freed memory.  When the\nendpoint is later torn down, snd_ump_endpoint_free() frees ump->out_cvts\na second time, resulting in a double free.\n\nThe host snd-usb-audio driver attaches the legacy rawmidi for any USB\nMIDI 2.0 (UMP) device, so a device that makes snd_rawmidi_new() fail\nreaches this path on enumeration.\n\nClear ump->out_cvts after freeing it on the error path so it is not\nfreed again during teardown.\n\nDiscovered by XBOW, triaged by Baul Lee <baul.lee@xbow.com>"}],"providerMetadata":{"dateUpdated":"2026-08-17T05:20:40.831Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/e84d2e53a05c78a04d1343eeb0f31a79456e79fc"},{"url":"https://git.kernel.org/stable/c/3302aaeac4f7ee6b775850db21d5f61064ce70ad"},{"url":"https://git.kernel.org/stable/c/032746c2dd9a4ea0774b04ac8a29e2ea628f106e"},{"url":"https://git.kernel.org/stable/c/c57001f55f97ef856fb6527e376c5c4a056a53a4"},{"url":"https://git.kernel.org/stable/c/70c977815af0d997feb2d0c5d284d55689bf7051"}],"title":"ALSA: ump: fix double free of out_cvts on rawmidi error","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74502","datePublished":"2026-08-15T12:27:27.586Z","dateReserved":"2026-08-15T05:44:03.907Z","dateUpdated":"2026-08-17T05:20:40.831Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 13:17:55","lastModifiedDate":"2026-08-17 06:19:46","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74502","Ordinal":"1","Title":"ALSA: ump: fix double free of out_cvts on rawmidi error","CVE":"CVE-2026-74502","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74502","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ump: fix double free of out_cvts on rawmidi error\n\nsnd_ump_attach_legacy_rawmidi() allocates the legacy conversion array\nump->out_cvts and, on the snd_rawmidi_new() error path, frees it with\nkfree() but leaves ump->out_cvts pointing at the freed memory.  When the\nendpoint is later torn down, snd_ump_endpoint_free() frees ump->out_cvts\na second time, resulting in a double free.\n\nThe host snd-usb-audio driver attaches the legacy rawmidi for any USB\nMIDI 2.0 (UMP) device, so a device that makes snd_rawmidi_new() fail\nreaches this path on enumeration.\n\nClear ump->out_cvts after freeing it on the error path so it is not\nfreed again during teardown.\n\nDiscovered by XBOW, triaged by Baul Lee <baul.lee@xbow.com>","Type":"Description","Title":"ALSA: ump: fix double free of out_cvts on rawmidi error"}]}}}