CVE-2026-74502

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74502", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.907Z", "datePublished": "2026-08-15T12:27:27.586Z", "dateUpdated": "2026-08-17T05:20:40.831Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:20:40.831Z"}, "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>"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/core/ump.c"], "versions": [{"version": "33cd7630782df2230529c3e8f1a6d0ae9cd6ab49", "lessThan": "e84d2e53a05c78a04d1343eeb0f31a79456e79fc", "status": "affected", "versionType": "git"}, {"version": "33cd7630782df2230529c3e8f1a6d0ae9cd6ab49", "lessThan": "3302aaeac4f7ee6b775850db21d5f61064ce70ad", "status": "affected", "versionType": "git"}, {"version": "33cd7630782df2230529c3e8f1a6d0ae9cd6ab49", "lessThan": "032746c2dd9a4ea0774b04ac8a29e2ea628f106e", "status": "affected", "versionType": "git"}, {"version": "33cd7630782df2230529c3e8f1a6d0ae9cd6ab49", "lessThan": "c57001f55f97ef856fb6527e376c5c4a056a53a4", "status": "affected", "versionType": "git"}, {"version": "33cd7630782df2230529c3e8f1a6d0ae9cd6ab49", "lessThan": "70c977815af0d997feb2d0c5d284d55689bf7051", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/core/ump.c"], "versions": [{"version": "6.5", "status": "affected"}, {"version": "0", "lessThan": "6.5", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.151", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.103", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.44", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.8", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.6.151"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.12.103"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.18.44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "7.1.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "7.2"}]}]}], "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"}}}}

{}

{"affected": [{"affectedData": [{"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"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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>"}], "id": "CVE-2026-74502", "lastModified": "2026-08-17T06:19:46.693", "metrics": {}, "published": "2026-08-15T13:17:55.197", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/032746c2dd9a4ea0774b04ac8a29e2ea628f106e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3302aaeac4f7ee6b775850db21d5f61064ce70ad"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/70c977815af0d997feb2d0c5d284d55689bf7051"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c57001f55f97ef856fb6527e376c5c4a056a53a4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e84d2e53a05c78a04d1343eeb0f31a79456e79fc"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: ALSA: ump: fix double free of out_cvts on rawmidi error", "id": "2517018", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2517018"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-1341", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nALSA: ump: fix double free of out_cvts on rawmidi error\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.\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.\nClear ump->out_cvts after freeing it on the error path so it is not\nfreed again during teardown.\nDiscovered by XBOW, triaged by Baul Lee <baul.lee@xbow.com>", "A flaw was found in the Linux kernel's Advanced Linux Sound Architecture (ALSA) Universal MIDI Packet (UMP) driver. This vulnerability, a double free error, occurs when handling legacy raw MIDI (Musical Instrument Digital Interface) conversions. Specifically, an error during the initialization of a USB MIDI 2.0 device can cause memory to be freed twice. This can lead to memory corruption or a system crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-74502", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74502\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74502\nhttps://lore.kernel.org/linux-cve-announce/2026081541-CVE-2026-74502-5720@gregkh/T"], "threat_severity": "Important"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[33cd7630782df2230529c3e8f1a6d0ae9cd6ab49,e84d2e53a05c78a04d1343eeb0f31a79456e79fc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[33cd7630782df2230529c3e8f1a6d0ae9cd6ab49,3302aaeac4f7ee6b775850db21d5f61064ce70ad)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[33cd7630782df2230529c3e8f1a6d0ae9cd6ab49,032746c2dd9a4ea0774b04ac8a29e2ea628f106e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[33cd7630782df2230529c3e8f1a6d0ae9cd6ab49,c57001f55f97ef856fb6527e376c5c4a056a53a4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[33cd7630782df2230529c3e8f1a6d0ae9cd6ab49,70c977815af0d997feb2d0c5d284d55689bf7051)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.5"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.151,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.103,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.44,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.8,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2-rc6,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-15T15:15:03.213268+00:00", "updated": "2026-08-21T23:45:03.443162+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}