{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-49551", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T02:08:31.590Z", "datePublished": "2025-02-26T02:14:01.196Z", "dateUpdated": "2025-10-01T19:46:39.237Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-05-04T08:40:22.041Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: isp1760: Fix out-of-bounds array access\n\nRunning the driver through kasan gives an interesting splat:\n\n BUG: KASAN: global-out-of-bounds in isp1760_register+0x180/0x70c\n Read of size 20 at addr f1db2e64 by task swapper/0/1\n (...)\n isp1760_register from isp1760_plat_probe+0x1d8/0x220\n (...)\n\nThis happens because the loop reading the regmap fields for the\ndifferent ISP1760 variants look like this:\n\n for (i = 0; i < HC_FIELD_MAX; i++) { ... }\n\nMeaning it expects the arrays to be at least HC_FIELD_MAX - 1 long.\n\nHowever the arrays isp1760_hc_reg_fields[], isp1763_hc_reg_fields[],\nisp1763_hc_volatile_ranges[] and isp1763_dc_volatile_ranges[] are\ndynamically sized during compilation.\n\nFix this by putting an empty assignment to the [HC_FIELD_MAX]\nand [DC_FIELD_MAX] array member at the end of each array.\nThis will make the array one member longer than it needs to be,\nbut avoids the risk of overwriting whatever is inside\n[HC_FIELD_MAX - 1] and is simple and intuitive to read. 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Also\nadd comments explaining what is going on."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: isp1760: Fix out-of-bounds array access Running the driver through kasan gives an interesting splat: BUG: KASAN: global-out-of-bounds in isp1760_register+0x180/0x70c Read of size 20 at addr f1db2e64 by task swapper/0/1 (...) isp1760_register from isp1760_plat_probe+0x1d8/0x220 (...) This happens because the loop reading the regmap fields for the different ISP1760 variants look like this: for (i = 0; i &lt; HC_FIELD_MAX; i++) { ... } Meaning it expects the arrays to be at least HC_FIELD_MAX - 1 long. However the arrays isp1760_hc_reg_fields[], isp1763_hc_reg_fields[], isp1763_hc_volatile_ranges[] and isp1763_dc_volatile_ranges[] se dimensionan din\u00e1micamente durante la compilaci\u00f3n. Solucione esto colocando una asignaci\u00f3n vac\u00eda al miembro de la matriz [HC_FIELD_MAX] y [DC_FIELD_MAX] al final de cada matriz. Esto har\u00e1 que la matriz tenga un miembro m\u00e1s de lo que necesita ser, pero evita el riesgo de sobrescribir lo que est\u00e9 dentro de [HC_FIELD_MAX - 1] y es simple e intuitivo de leer. Tambi\u00e9n agregue comentarios que expliquen lo que est\u00e1 sucediendo."}], "id": "CVE-2022-49551", "lastModified": "2025-10-01T20:16:44.490", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.2, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2025-02-26T07:01:30.950", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/26ae2c942b5702f2e43d36b2a4389cfb7d616b6a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/463bddd3ff1acf4036ddb80c34a715eb99debf46"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/47d39cb57e8669e507d17d9e0d067d2b3e3a87ae"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bf2558bbdce3ab1d6bcba09f354914e4515d0a2b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "nvd@nist.gov", "type": "Primary"}, {"description": [{"lang": "en", "value": "CWE-125"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: usb: isp1760: Fix out-of-bounds array access", "id": "2347844", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2347844"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H", "status": "draft"}, "cwe": "CWE-125", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nusb: isp1760: Fix out-of-bounds array access\nRunning the driver through kasan gives an interesting splat:\nBUG: KASAN: global-out-of-bounds in isp1760_register+0x180/0x70c\nRead of size 20 at addr f1db2e64 by task swapper/0/1\n(...)\nisp1760_register from isp1760_plat_probe+0x1d8/0x220\n(...)\nThis happens because the loop reading the regmap fields for the\ndifferent ISP1760 variants look like this:\nfor (i = 0; i < HC_FIELD_MAX; i++) { ... }\nMeaning it expects the arrays to be at least HC_FIELD_MAX - 1 long.\nHowever the arrays isp1760_hc_reg_fields[], isp1763_hc_reg_fields[],\nisp1763_hc_volatile_ranges[] and isp1763_dc_volatile_ranges[] are\ndynamically sized during compilation.\nFix this by putting an empty assignment to the [HC_FIELD_MAX]\nand [DC_FIELD_MAX] array member at the end of each array.\nThis will make the array one member longer than it needs to be,\nbut avoids the risk of overwriting whatever is inside\n[HC_FIELD_MAX - 1] and is simple and intuitive to read. Also\nadd comments explaining what is going on."], "name": "CVE-2022-49551", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-02-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-49551\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49551\nhttps://lore.kernel.org/linux-cve-announce/2025022616-CVE-2022-49551-4fc9@gregkh/T"], "threat_severity": "Important"}

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