{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46146", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.100Z", "datePublished": "2026-05-28T09:36:02.794Z", "dateUpdated": "2026-05-28T09:36:02.794Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-28T09:36:02.794Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()\n\nThe convert_chmap_v3() has a loop with its increment size of\ncs_desc->wLength, but we forgot to validate cs_desc->wLength itself,\nwhich may lead to potential endless loop by a malformed descriptor.\n\nAdd a proper size check to abort the loop for plugging the hole."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/usb/stream.c"], "versions": [{"version": "1034719fdefd26caeec0a44a868bb5a412c2c1a5", "lessThan": "e0e3dcf48189603f3865f1a0b799b3b42baae96d", "status": "affected", "versionType": "git"}, {"version": "ae17b3b5e753efc239421d186cd1ff06e5ac296e", "lessThan": "4e0ee232ebe3df04874125d7c7f3e6c25ea5483d", "status": "affected", "versionType": "git"}, {"version": "ecfd41166b72b67d3bdeb88d224ff445f6163869", "lessThan": "be09b47ed8677d76962e3240c145502e2ad9f3c8", "status": "affected", "versionType": "git"}, {"version": "ecfd41166b72b67d3bdeb88d224ff445f6163869", "lessThan": "fa5b19ce69067874b1413f3c2027563bae8c2cb3", "status": "affected", "versionType": "git"}, {"version": "ecfd41166b72b67d3bdeb88d224ff445f6163869", "lessThan": "6e7247d8f5fefeceb0bb9cc80a5388a636b219cd", "status": "affected", "versionType": "git"}, {"version": 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"5.16", "status": "affected", "versionType": "semver"}, {"version": "6.1.149", "lessThan": "6.2", "status": "affected", "versionType": "semver"}, {"version": "6.15.11", "lessThan": "6.16", "status": "affected", "versionType": "semver"}, {"version": "6.16.2", "lessThan": "6.17", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/usb/stream.c"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.88", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.30", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.7", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1-rc2", "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": "6.6.103", "versionEndExcluding": "6.6.140"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.43", "versionEndExcluding": "6.12.88"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.18.30"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.0.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.1-rc2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4.297"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.241"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.190"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.149"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e0e3dcf48189603f3865f1a0b799b3b42baae96d"}, {"url": "https://git.kernel.org/stable/c/4e0ee232ebe3df04874125d7c7f3e6c25ea5483d"}, {"url": "https://git.kernel.org/stable/c/be09b47ed8677d76962e3240c145502e2ad9f3c8"}, {"url": "https://git.kernel.org/stable/c/fa5b19ce69067874b1413f3c2027563bae8c2cb3"}, {"url": "https://git.kernel.org/stable/c/6e7247d8f5fefeceb0bb9cc80a5388a636b219cd"}], "title": "ALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()\n\nThe convert_chmap_v3() has a loop with its increment size of\ncs_desc->wLength, but we forgot to validate cs_desc->wLength itself,\nwhich may lead to potential endless loop by a malformed descriptor.\n\nAdd a proper size check to abort the loop for plugging the hole."}], "id": "CVE-2026-46146", "lastModified": "2026-05-28T13:44:01.663", "metrics": {}, "published": "2026-05-28T10:16:30.203", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4e0ee232ebe3df04874125d7c7f3e6c25ea5483d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6e7247d8f5fefeceb0bb9cc80a5388a636b219cd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/be09b47ed8677d76962e3240c145502e2ad9f3c8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e0e3dcf48189603f3865f1a0b799b3b42baae96d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fa5b19ce69067874b1413f3c2027563bae8c2cb3"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: ALSA: usb-audio: Avoid potential endless loop in convert_chmap_v3()", "id": "2482526", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482526"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-606", "details": ["A flaw was found in the Linux kernel's ALSA (Advanced Linux Sound Architecture) usb-audio subsystem. This vulnerability exists in the `convert_chmap_v3()` function, where the `cs_desc->wLength` value is not properly validated. A malicious actor could provide a specially crafted, malformed USB audio descriptor. This could lead to an endless loop, causing a Denial of Service (DoS) on the affected system."], "name": "CVE-2026-46146", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46146\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46146\nhttps://lore.kernel.org/linux-cve-announce/2026052821-CVE-2026-46146-945d@gregkh/T"], "threat_severity": "Moderate"}