CVE-2026-23208

{"id": "CVE-2026-23208", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "02c56650f3c118d3752122996d96173d26bb13aa", "lessThan": "480a1490c595a242f27493a4544b3efb21b29f6a", "versionType": "git"}, {"status": "affected", "version": "5ef30e443e6d3654cccecec99cf481a69a0a6d3b", "lessThan": "ab0b5e92fc36ee82c1bd01fe896d0f775ed5de41", "versionType": "git"}, {"status": "affected", "version": "99703c921864a318e3e8aae74fde071b1ff35bea", "lessThan": "282aba56713bbc58155716b55ca7222b2d9cf3c8", "versionType": "git"}, {"status": "affected", "version": "2d50acd7dbd0682a56968ad9551341d7fc5b6eaf", "lessThan": "c4dc012b027c9eb101583011089dea14d744e314", "versionType": "git"}, {"status": "affected", "version": "aba41867dd66939d336fdf604e4d73b805d8039f", "lessThan": "e0ed5a36fb3ab9e7b9ee45cd17f09f6d5f594360", "versionType": "git"}, {"status": "affected", "version": "d288dc74f8cf95cb7ae0aaf245b7128627a49bf3", "lessThan": "d67dde02049e632ba58d3c44a164a74b6a737154", "versionType": "git"}, {"status": "affected", "version": "f0bd62b64016508938df9babe47f65c2c727d25c", "lessThan": "62932d9ed639a9fa71b4ac1a56766a4b43abb7e4", "versionType": "git"}, {"status": "affected", "version": "f0bd62b64016508938df9babe47f65c2c727d25c", "lessThan": "ef5749ef8b307bf8717945701b1b79d036af0a15", "versionType": "git"}, {"status": "affected", "version": "4.4.229", "lessThan": "4.4.230", "versionType": "semver"}, {"status": "affected", "version": "4.9.229", "lessThan": "4.9.230", "versionType": "semver"}, {"status": "affected", "version": "4.14.186", "lessThan": "4.14.188", "versionType": "semver"}, {"status": "affected", "version": "4.19.130", "lessThan": "4.19.132", "versionType": "semver"}, {"status": "affected", "version": "5.4.49", "lessThan": "5.4.51", "versionType": "semver"}, {"status": "affected", "version": "5.7.6", "lessThan": "5.7.8", "versionType": "semver"}], "programFiles": ["sound/usb/pcm.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.8"}, {"status": "unaffected", "version": "0", "lessThan": "5.8", "versionType": "semver"}, {"status": "unaffected", "version": "4.4.230", "versionType": "semver", "lessThanOrEqual": "4.4.*"}, {"status": "unaffected", "version": "4.9.230", "versionType": "semver", "lessThanOrEqual": "4.9.*"}, {"status": "unaffected", "version": "4.14.188", "versionType": "semver", "lessThanOrEqual": "4.14.*"}, {"status": "unaffected", "version": "4.19.132", "versionType": "semver", "lessThanOrEqual": "4.19.*"}, {"status": "unaffected", "version": "5.4.51", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.7.8", "versionType": "semver", "lessThanOrEqual": "5.7.*"}, {"status": "unaffected", "version": "6.18.10", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["sound/usb/pcm.c"], "defaultStatus": "affected"}]}], "published": "2026-02-14T17:15:58.703", "references": [{"url": "https://git.kernel.org/stable/c/282aba56713bbc58155716b55ca7222b2d9cf3c8", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/480a1490c595a242f27493a4544b3efb21b29f6a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/62932d9ed639a9fa71b4ac1a56766a4b43abb7e4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ab0b5e92fc36ee82c1bd01fe896d0f775ed5de41", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c4dc012b027c9eb101583011089dea14d744e314", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/d67dde02049e632ba58d3c44a164a74b6a737154", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e0ed5a36fb3ab9e7b9ee45cd17f09f6d5f594360", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/ef5749ef8b307bf8717945701b1b79d036af0a15", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Prevent excessive number of frames\n\nIn this case, the user constructed the parameters with maxpacksize 40\nfor rate 22050 / pps 1000, and packsize[0] 22 packsize[1] 23. The buffer\nsize for each data URB is maxpacksize * packets, which in this example\nis 40 * 6 = 240; When the user performs a write operation to send audio\ndata into the ALSA PCM playback stream, the calculated number of frames\nis packsize[0] * packets = 264, which exceeds the allocated URB buffer\nsize, triggering the out-of-bounds (OOB) issue reported by syzbot [1].\n\nAdded a check for the number of single data URB frames when calculating\nthe number of frames to prevent [1].\n\n[1]\nBUG: KASAN: slab-out-of-bounds in copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487\nWrite of size 264 at addr ffff88804337e800 by task syz.0.17/5506\nCall Trace:\n copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487\n prepare_playback_urb+0x953/0x13d0 sound/usb/pcm.c:1611\n prepare_outbound_urb+0x377/0xc50 sound/usb/endpoint.c:333"}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nALSA: usb-audio: Prevenir un n\u00famero excesivo de tramas\n\nEn este caso, el usuario construy\u00f3 los par\u00e1metros con maxpacksize 40 para una tasa de 22050 / pps 1000, y packsize[0] 22 packsize[1] 23. El tama\u00f1o del b\u00fafer para cada URB de datos es maxpacksize * paquetes, que en este ejemplo es 40 * 6 = 240; Cuando el usuario realiza una operaci\u00f3n de escritura para enviar datos de audio al flujo de reproducci\u00f3n ALSA PCM, el n\u00famero calculado de tramas es packsize[0] * paquetes = 264, lo que excede el tama\u00f1o del b\u00fafer URB asignado, desencadenando el problema de fuera de l\u00edmites (OOB) reportado por syzbot [1].\n\nSe a\u00f1adi\u00f3 una comprobaci\u00f3n para el n\u00famero de tramas URB de datos individuales al calcular el n\u00famero de tramas para prevenir [1].\n\n[1]\nBUG: KASAN: slab-out-of-bounds en copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487\nEscritura de tama\u00f1o 264 en la direcci\u00f3n ffff88804337e800 por la tarea syz.0.17/5506\nTraza de Llamada:\n copy_to_urb+0x261/0x460 sound/usb/pcm.c:1487\n prepare_playback_urb+0x953/0x13d0 sound/usb/pcm.c:1611\n prepare_outbound_urb+0x377/0xc50 sound/usb/endpoint.c:333"}], "lastModified": "2026-06-17T10:21:06.157", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CD1BFF88-C8CF-4AA8-8E24-D13928FE0DD5", "versionEndExcluding": "4.14.188", "versionStartIncluding": "4.14.186"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "87999705-F22E-4389-898A-B4B8DDDBDA7F", "versionEndExcluding": "4.19.132", "versionStartIncluding": "4.19.130"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C5C83907-C9A6-43D6-AA4A-8B82C0E60FB9", "versionEndExcluding": "5.4.51", "versionStartIncluding": "5.4.49"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "958FE7C1-BD9E-4C9D-91F6-19A8E0EB9B59", "versionEndExcluding": "5.7.8", "versionStartIncluding": "5.7.6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7A0D4259-1C3D-46AC-B61A-63E751C16AE1", "versionEndExcluding": "6.18.10", "versionStartIncluding": "5.8"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.4.229:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "088154F3-4B59-4FF5-9177-F2B91EBA283E"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:4.9.229:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BBE6AD3D-3D2D-4D6F-809E-52224BC0C930"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "17B67AA7-40D6-4AFA-8459-F200F3D7CFD1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C47E4CC9-C826-4FA9-B014-7FE3D9B318B2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F71D92C0-C023-48BD-B3B6-70B638EEE298"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "13580667-0A98-40CC-B29F-D12790B91BDB"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}