CVE-2026-80969

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80969", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.810Z", "datePublished": "2026-09-11T19:42:33.128Z", "dateUpdated": "2026-10-19T08:45:54.014Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:45:54.014Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: mpu401: Check card index validity at probe\n\nmpu401 driver blindly trusts that the given devptr->id value is within\nthe proper card index range at probe. It's OK for the devices the\ndriver itself creates at the module probe time, but if the device is\nbound manually via sysfs interface, this could be -1 as \"none\", and\nthis leads to OOB access for index[] and other parameters.\n\nAdd a sanity check for the card index and warn/correct it if it's a\nvalue out of the range."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/drivers/mpu401/mpu401.c"], "versions": [{"version": "b3fe95123f0db79dd0345d249c312823178c11f5", "lessThan": "4a3d6c22ca6b6c16e8055fb518aa87f5e043f754", "status": "affected", "versionType": "git"}, {"version": "b3fe95123f0db79dd0345d249c312823178c11f5", "lessThan": "d606c703d1e0c54996cb3db76a753157cb2a3c06", "status": "affected", "versionType": "git"}, {"version": "b3fe95123f0db79dd0345d249c312823178c11f5", "lessThan": "3a997371ac2957f11a033a4cec2930042dadb7e3", "status": "affected", "versionType": "git"}, {"version": "b3fe95123f0db79dd0345d249c312823178c11f5", "lessThan": "26a25fb4ef4ba2a33069d489feb75a4c36899cca", "status": "affected", "versionType": "git"}, {"version": "b3fe95123f0db79dd0345d249c312823178c11f5", "lessThan": "76b6bc38d0f310c0ae1b2a2ebabe2947d92c601a", "status": "affected", "versionType": "git"}, {"version": "b3fe95123f0db79dd0345d249c312823178c11f5", "lessThan": "cc4215cc2a4b2a9cf8b1952bbe8d5bf925acb3ea", "status": "affected", "versionType": "git"}, {"version": "b3fe95123f0db79dd0345d249c312823178c11f5", "lessThan": "8adda66edf795d4648f8e26f312e4414c535d25a", "status": "affected", "versionType": "git"}, {"version": "b3fe95123f0db79dd0345d249c312823178c11f5", "lessThan": "f7dcecb92ed192ff5fcf842918fb1aaea84b5bdd", "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/drivers/mpu401/mpu401.c"], "versions": [{"version": "2.6.16", "status": "affected"}, {"version": "0", "lessThan": "2.6.16", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.270", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.221", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.188", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.109", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "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": "2.6.16", "versionEndExcluding": "5.10.270"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "5.15.221"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "6.1.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "6.12.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.16", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/4a3d6c22ca6b6c16e8055fb518aa87f5e043f754"}, {"url": "https://git.kernel.org/stable/c/d606c703d1e0c54996cb3db76a753157cb2a3c06"}, {"url": "https://git.kernel.org/stable/c/3a997371ac2957f11a033a4cec2930042dadb7e3"}, {"url": "https://git.kernel.org/stable/c/26a25fb4ef4ba2a33069d489feb75a4c36899cca"}, {"url": "https://git.kernel.org/stable/c/76b6bc38d0f310c0ae1b2a2ebabe2947d92c601a"}, {"url": "https://git.kernel.org/stable/c/cc4215cc2a4b2a9cf8b1952bbe8d5bf925acb3ea"}, {"url": "https://git.kernel.org/stable/c/8adda66edf795d4648f8e26f312e4414c535d25a"}, {"url": "https://git.kernel.org/stable/c/f7dcecb92ed192ff5fcf842918fb1aaea84b5bdd"}], "title": "ALSA: mpu401: Check card index validity at probe", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["sound/drivers/mpu401/mpu401.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "4a3d6c22ca6b6c16e8055fb518aa87f5e043f754", "status": "affected", "version": "b3fe95123f0db79dd0345d249c312823178c11f5", "versionType": "git"}, {"lessThan": "d606c703d1e0c54996cb3db76a753157cb2a3c06", "status": "affected", "version": "b3fe95123f0db79dd0345d249c312823178c11f5", "versionType": "git"}, {"lessThan": "3a997371ac2957f11a033a4cec2930042dadb7e3", "status": "affected", "version": "b3fe95123f0db79dd0345d249c312823178c11f5", "versionType": "git"}, {"lessThan": "26a25fb4ef4ba2a33069d489feb75a4c36899cca", "status": "affected", "version": "b3fe95123f0db79dd0345d249c312823178c11f5", "versionType": "git"}, {"lessThan": "76b6bc38d0f310c0ae1b2a2ebabe2947d92c601a", "status": "affected", "version": "b3fe95123f0db79dd0345d249c312823178c11f5", "versionType": "git"}, {"lessThan": "cc4215cc2a4b2a9cf8b1952bbe8d5bf925acb3ea", "status": "affected", "version": "b3fe95123f0db79dd0345d249c312823178c11f5", "versionType": "git"}, {"lessThan": "8adda66edf795d4648f8e26f312e4414c535d25a", "status": "affected", "version": "b3fe95123f0db79dd0345d249c312823178c11f5", "versionType": "git"}, {"lessThan": "f7dcecb92ed192ff5fcf842918fb1aaea84b5bdd", "status": "affected", "version": "b3fe95123f0db79dd0345d249c312823178c11f5", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["sound/drivers/mpu401/mpu401.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.16"}, {"lessThan": "2.6.16", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.270", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.221", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.188", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.109", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.50", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "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: mpu401: Check card index validity at probe\n\nmpu401 driver blindly trusts that the given devptr->id value is within\nthe proper card index range at probe. It's OK for the devices the\ndriver itself creates at the module probe time, but if the device is\nbound manually via sysfs interface, this could be -1 as \"none\", and\nthis leads to OOB access for index[] and other parameters.\n\nAdd a sanity check for the card index and warn/correct it if it's a\nvalue out of the range."}], "id": "CVE-2026-80969", "lastModified": "2026-10-19T09:17:28.713", "metrics": {}, "published": "2026-09-11T20:19:02.967", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/26a25fb4ef4ba2a33069d489feb75a4c36899cca"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3a997371ac2957f11a033a4cec2930042dadb7e3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4a3d6c22ca6b6c16e8055fb518aa87f5e043f754"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/76b6bc38d0f310c0ae1b2a2ebabe2947d92c601a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8adda66edf795d4648f8e26f312e4414c535d25a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cc4215cc2a4b2a9cf8b1952bbe8d5bf925acb3ea"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d606c703d1e0c54996cb3db76a753157cb2a3c06"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f7dcecb92ed192ff5fcf842918fb1aaea84b5bdd"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel ALSA mpu401: Out-of-bounds access via improper card index validation", "id": "2532468", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532468"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["A flaw was found in the Linux kernel's ALSA mpu401 driver. The driver fails to validate the card index when a device is manually bound through the sysfs interface. This oversight can lead to an out-of-bounds memory access. A local attacker with appropriate permissions could exploit this vulnerability to cause a denial of service or potentially achieve privilege escalation."], "name": "CVE-2026-80969", "public_date": "2026-09-11T19:42:33Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-80969\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80969\nhttps://git.kernel.org/stable/c/76b6bc38d0f310c0ae1b2a2ebabe2947d92c601a\nhttps://git.kernel.org/stable/c/8adda66edf795d4648f8e26f312e4414c535d25a\nhttps://git.kernel.org/stable/c/cc4215cc2a4b2a9cf8b1952bbe8d5bf925acb3ea\nhttps://git.kernel.org/stable/c/f7dcecb92ed192ff5fcf842918fb1aaea84b5bdd"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b3fe95123f0db79dd0345d249c312823178c11f5,76b6bc38d0f310c0ae1b2a2ebabe2947d92c601a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b3fe95123f0db79dd0345d249c312823178c11f5,cc4215cc2a4b2a9cf8b1952bbe8d5bf925acb3ea)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b3fe95123f0db79dd0345d249c312823178c11f5,8adda66edf795d4648f8e26f312e4414c535d25a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[b3fe95123f0db79dd0345d249c312823178c11f5,f7dcecb92ed192ff5fcf842918fb1aaea84b5bdd)"}}], "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": "2.6.16"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.16)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.109,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.50,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.4,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*]"}}], "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": "2026-09-13T08:30:16.942008+00:00", "updated": "2026-09-21T02:30:08.200722+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}