CVE-2024-42242

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/mmc/host/sdhci.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "bf78b1accef46efd9b624967cb74ae8d3c215a2b", "status": "affected", "version": "616f8766179277324393f7b77e07f14cb3503825", "versionType": "git"}, {"lessThan": "63d20a94f24fc1cbaf44d0e7c0e0a8077fde0aef", "status": "affected", "version": "616f8766179277324393f7b77e07f14cb3503825", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/mmc/host/sdhci.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.9"}, {"lessThan": "6.9", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.9.*", "status": "unaffected", "version": "6.9.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.10", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0F5C3789-472B-40EC-9D2A-48169EDB592B", "versionEndExcluding": "6.9.10", "versionStartIncluding": "6.9", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: sdhci: Fix max_seg_size for 64KiB PAGE_SIZE\n\nblk_queue_max_segment_size() ensured:\n\n\tif (max_size < PAGE_SIZE)\n\t\tmax_size = PAGE_SIZE;\n\nwhereas:\n\nblk_validate_limits() makes it an error:\n\n\tif (WARN_ON_ONCE(lim->max_segment_size < PAGE_SIZE))\n\t\treturn -EINVAL;\n\nThe change from one to the other, exposed sdhci which was setting maximum\nsegment size too low in some circumstances.\n\nFix the maximum segment size when it is too low."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: mmc: sdhci: Correcci\u00f3n max_seg_size para 64KiB PAGE_SIZE blk_queue_max_segment_size() asegurado: if (max_size &lt; PAGE_SIZE) max_size = PAGE_SIZE; mientras que: blk_validate_limits() lo convierte en un error: if (WARN_ON_ONCE(lim-&gt;max_segment_size &lt; PAGE_SIZE)) return -EINVAL; El cambio de uno a otro expuso a sdhci, que estaba estableciendo un tama\u00f1o de segmento m\u00e1ximo demasiado bajo en algunas circunstancias. Fije el tama\u00f1o m\u00e1ximo del segmento cuando sea demasiado bajo."}], "id": "CVE-2024-42242", "lastModified": "2026-06-17T07:49:05.360", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2024-42242", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2024-09-10T16:13:44.630939Z", "version": "2.0.3"}}]}, "published": "2024-08-07T16:15:47.013", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/63d20a94f24fc1cbaf44d0e7c0e0a8077fde0aef"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bf78b1accef46efd9b624967cb74ae8d3c215a2b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-770"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: mmc: sdhci: Fix max_seg_size for 64KiB PAGE_SIZE", "id": "2303510", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2303510"}, "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-99", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmmc: sdhci: Fix max_seg_size for 64KiB PAGE_SIZE\nblk_queue_max_segment_size() ensured:\nif (max_size < PAGE_SIZE)\nmax_size = PAGE_SIZE;\nwhereas:\nblk_validate_limits() makes it an error:\nif (WARN_ON_ONCE(lim->max_segment_size < PAGE_SIZE))\nreturn -EINVAL;\nThe change from one to the other, exposed sdhci which was setting maximum\nsegment size too low in some circumstances.\nFix the maximum segment size when it is too low.", "A flaw was found in the `mmc: sdhci` driver in the Linux kernel, caused by setting the maximum segment size below the required page size (`PAGE_SIZE`). This discrepancy leads to validation errors and potential issues in handling I/O operations. The fix involved updating the `sdhci` driver to ensure that the maximum segment size is always at least the `PAGE_SIZE`, thereby aligning with kernel requirements and preventing errors related to segment size limits."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2024-42242", "package_state": [{"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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "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": "2024-08-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-42242\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-42242\nhttps://lore.kernel.org/linux-cve-announce/2024080741-CVE-2024-42242-add7@gregkh/T"], "statement": "Red Hat Enterprise Linux is not vulnerable to this CVE, as it does not affect the versions or configurations of the Linux kernel used in its distributions.", "threat_severity": "Moderate"}

{}