{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46088", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.096Z", "datePublished": "2026-05-27T12:58:31.895Z", "dateUpdated": "2026-05-27T12:58:31.895Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-27T12:58:31.895Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: control: Validate buf_len before strnlen() in snd_ctl_elem_init_enum_names()\n\nsnd_ctl_elem_init_enum_names() advances pointer p through the names\nbuffer while decrementing buf_len. If buf_len reaches zero but items\nremain, the next iteration calls strnlen(p, 0).\n\nWhile strnlen(p, 0) returns 0 and would hit the existing name_len == 0\nerror path, CONFIG_FORTIFY_SOURCE's fortified strnlen() first checks\nmaxlen against __builtin_dynamic_object_size(). When Clang loses track\nof p's object size inside the loop, this triggers a BRK exception panic\nbefore the return value is examined.\n\nAdd a buf_len == 0 guard at the loop entry to prevent calling fortified\nstrnlen() on an exhausted buffer.\n\nFound by kernel fuzz testing through Xiaomi Smartphone."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["sound/core/control.c"], "versions": [{"version": "8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4", "lessThan": "1fbe46d2b72754d8bd580e13e59ccb5d3d0e8cb0", "status": "affected", "versionType": "git"}, {"version": "8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4", "lessThan": "8ba0214c3dd32b8ec652947e3f2bc5b8f6e6be9e", "status": "affected", "versionType": "git"}, {"version": "8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4", "lessThan": "654c818a69c21d2bea4e8fd9eae7da865df9a5c8", "status": "affected", "versionType": "git"}, {"version": "8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4", "lessThan": "82012fd3e78a14360fbc2f1a7491589896704f97", "status": "affected", "versionType": "git"}, {"version": "8d448162bda5ae3b5ecb26fe50c8fbbeae99faa4", "lessThan": "e0da8a8cac74f4b9f577979d131f0d2b88a84487", "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/control.c"], "versions": [{"version": "3.2", "status": "affected"}, {"version": "0", "lessThan": "3.2", "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": "3.2", "versionEndExcluding": "6.6.140"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.12.86"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.18.27"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "7.0.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "7.1-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/1fbe46d2b72754d8bd580e13e59ccb5d3d0e8cb0"}, {"url": "https://git.kernel.org/stable/c/8ba0214c3dd32b8ec652947e3f2bc5b8f6e6be9e"}, {"url": "https://git.kernel.org/stable/c/654c818a69c21d2bea4e8fd9eae7da865df9a5c8"}, {"url": "https://git.kernel.org/stable/c/82012fd3e78a14360fbc2f1a7491589896704f97"}, {"url": "https://git.kernel.org/stable/c/e0da8a8cac74f4b9f577979d131f0d2b88a84487"}], "title": "ALSA: control: Validate buf_len before strnlen() in snd_ctl_elem_init_enum_names()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: control: Validate buf_len before strnlen() in snd_ctl_elem_init_enum_names()\n\nsnd_ctl_elem_init_enum_names() advances pointer p through the names\nbuffer while decrementing buf_len. If buf_len reaches zero but items\nremain, the next iteration calls strnlen(p, 0).\n\nWhile strnlen(p, 0) returns 0 and would hit the existing name_len == 0\nerror path, CONFIG_FORTIFY_SOURCE's fortified strnlen() first checks\nmaxlen against __builtin_dynamic_object_size(). When Clang loses track\nof p's object size inside the loop, this triggers a BRK exception panic\nbefore the return value is examined.\n\nAdd a buf_len == 0 guard at the loop entry to prevent calling fortified\nstrnlen() on an exhausted buffer.\n\nFound by kernel fuzz testing through Xiaomi Smartphone."}], "id": "CVE-2026-46088", "lastModified": "2026-05-27T14:48:03.013", "metrics": {}, "published": "2026-05-27T14:17:30.333", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1fbe46d2b72754d8bd580e13e59ccb5d3d0e8cb0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/654c818a69c21d2bea4e8fd9eae7da865df9a5c8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/82012fd3e78a14360fbc2f1a7491589896704f97"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8ba0214c3dd32b8ec652947e3f2bc5b8f6e6be9e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e0da8a8cac74f4b9f577979d131f0d2b88a84487"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{}

{}