{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46018", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.092Z", "datePublished": "2026-05-27T12:56:19.588Z", "dateUpdated": "2026-05-27T12:56:19.588Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-27T12:56:19.588Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES\n\nparse_uac2_sample_rate_range() caps the number of enumerated\nrates at MAX_NR_RATES, but it only breaks out of the current\nrate loop. A malformed UAC2 RANGE response with additional\ntriplets continues parsing the remaining triplets and repeatedly\nprints \"invalid uac2 rates\" while probe still holds\nregister_mutex.\n\nStop the whole parse once the cap is reached and return the\nnumber of rates collected so far."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/usb/format.c"], "versions": [{"version": "4fa0e81b83503900be277e6273a79651b375e288", "lessThan": "ab5ba9fd138758ddc50222264ff246b31e397abf", "status": "affected", "versionType": "git"}, {"version": "4fa0e81b83503900be277e6273a79651b375e288", "lessThan": "ba036305323814ec1f8655313b2fa6a0f7048716", "status": "affected", "versionType": "git"}, {"version": "4fa0e81b83503900be277e6273a79651b375e288", "lessThan": "4d7893a137eadb6163ea4298bf67d74b811d76ef", "status": "affected", "versionType": "git"}, {"version": "4fa0e81b83503900be277e6273a79651b375e288", "lessThan": "a0b78639ef09b2e77974a3de3b1c07f6de3c5e56", "status": "affected", "versionType": "git"}, {"version": "4fa0e81b83503900be277e6273a79651b375e288", "lessThan": "3c318f97dcc50b2e0556a1813bd6958678e881fd", "status": "affected", "versionType": "git"}, {"version": "44f059fb742aac78cffdab5e0d8fe0c9910c1ded", "status": "affected", "versionType": "git"}, {"version": "c25a53781f61c78bf2a2fa308bbd35b42ba346f6", "status": "affected", "versionType": "git"}, {"version": "3.0.81", "lessThan": "3.1", "status": "affected", "versionType": "semver"}, {"version": "3.2.47", "lessThan": "3.3", "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/format.c"], "versions": [{"version": "3.3", "status": "affected"}, {"version": "0", "lessThan": "3.3", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.86", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.27", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.4", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1-rc1", "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": "3.3", "versionEndExcluding": "6.6.140"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "6.12.86"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "6.18.27"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "7.0.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.3", "versionEndExcluding": "7.1-rc1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0.81"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2.47"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ab5ba9fd138758ddc50222264ff246b31e397abf"}, {"url": "https://git.kernel.org/stable/c/ba036305323814ec1f8655313b2fa6a0f7048716"}, {"url": "https://git.kernel.org/stable/c/4d7893a137eadb6163ea4298bf67d74b811d76ef"}, {"url": "https://git.kernel.org/stable/c/a0b78639ef09b2e77974a3de3b1c07f6de3c5e56"}, {"url": "https://git.kernel.org/stable/c/3c318f97dcc50b2e0556a1813bd6958678e881fd"}], "title": "ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES", "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: stop parsing UAC2 rates at MAX_NR_RATES\n\nparse_uac2_sample_rate_range() caps the number of enumerated\nrates at MAX_NR_RATES, but it only breaks out of the current\nrate loop. A malformed UAC2 RANGE response with additional\ntriplets continues parsing the remaining triplets and repeatedly\nprints \"invalid uac2 rates\" while probe still holds\nregister_mutex.\n\nStop the whole parse once the cap is reached and return the\nnumber of rates collected so far."}], "id": "CVE-2026-46018", "lastModified": "2026-05-27T14:48:03.013", "metrics": {}, "published": "2026-05-27T14:17:20.240", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3c318f97dcc50b2e0556a1813bd6958678e881fd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4d7893a137eadb6163ea4298bf67d74b811d76ef"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a0b78639ef09b2e77974a3de3b1c07f6de3c5e56"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ab5ba9fd138758ddc50222264ff246b31e397abf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ba036305323814ec1f8655313b2fa6a0f7048716"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES", "id": "2482004", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482004"}, "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 Advanced Linux Sound Architecture (ALSA) USB audio driver. A malicious Universal Serial Bus (USB) audio device could send a malformed Universal Audio Class 2 (UAC2) RANGE response. This could cause the system to repeatedly print error messages and potentially lead to a denial of service (DoS) by holding a mutex during the device probing process."], "name": "CVE-2026-46018", "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": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46018\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46018\nhttps://lore.kernel.org/linux-cve-announce/2026052746-CVE-2026-46018-ac95@gregkh/T"], "threat_severity": "Low"}

{"created": "2026-05-27T18:45:39.821299+00:00", "updated": "2026-05-27T18:45:39.821309+00:00", "vendors": [], "weaknesses": ["CWE-400"]}