CVE-2026-53130

{"id": "CVE-2026-53130", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "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": "a3ab7155ea21aadc8a4d5687e91b3d876973185e", "lessThan": "fbc72f5c645155dc2ed3573243ed20f9913e3a54", "versionType": "git"}, {"status": "affected", "version": "a3ab7155ea21aadc8a4d5687e91b3d876973185e", "lessThan": "5822a05a841a10794ad818620dd2af490b0705d3", "versionType": "git"}, {"status": "affected", "version": "a3ab7155ea21aadc8a4d5687e91b3d876973185e", "lessThan": "754ff1bea3819a90c6f33cccfc1a299ef7609f07", "versionType": "git"}, {"status": "affected", "version": "a3ab7155ea21aadc8a4d5687e91b3d876973185e", "lessThan": "131ea3e57fc22936ed0e2c8330f2e36106172f51", "versionType": "git"}, {"status": "affected", "version": "a3ab7155ea21aadc8a4d5687e91b3d876973185e", "lessThan": "79f84af38c9fef9deb0e02c79eb969b5541c2644", "versionType": "git"}, {"status": "affected", "version": "a3ab7155ea21aadc8a4d5687e91b3d876973185e", "lessThan": "6561afc38398e3518a29c5eebb975c30468f98a6", "versionType": "git"}, {"status": "affected", "version": "a3ab7155ea21aadc8a4d5687e91b3d876973185e", "lessThan": "817f16ed62bc58a168417bfb5e859c2a370bab03", "versionType": "git"}, {"status": "affected", "version": "a3ab7155ea21aadc8a4d5687e91b3d876973185e", "lessThan": "0621c385fda1376e967f37ccd534c26c3e511d14", "versionType": "git"}], "programFiles": ["fs/omfs/inode.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "2.6.27"}, {"status": "unaffected", "version": "0", "lessThan": "2.6.27", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.258", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.209", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.175", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.141", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.91", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.33", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.10", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["fs/omfs/inode.c"], "defaultStatus": "affected"}]}], "published": "2026-06-24T17:17:28.903", "references": [{"url": "https://git.kernel.org/stable/c/0621c385fda1376e967f37ccd534c26c3e511d14", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/131ea3e57fc22936ed0e2c8330f2e36106172f51", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5822a05a841a10794ad818620dd2af490b0705d3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6561afc38398e3518a29c5eebb975c30468f98a6", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/754ff1bea3819a90c6f33cccfc1a299ef7609f07", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/79f84af38c9fef9deb0e02c79eb969b5541c2644", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/817f16ed62bc58a168417bfb5e859c2a370bab03", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/fbc72f5c645155dc2ed3573243ed20f9913e3a54", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-191"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/omfs: reject s_sys_blocksize smaller than OMFS_DIR_START\n\nomfs_fill_super() rejects oversized s_sys_blocksize values (> PAGE_SIZE),\nbut it does not reject values smaller than OMFS_DIR_START (0x1b8 = 440).\n\nLater, omfs_make_empty() uses\n\n sbi->s_sys_blocksize - OMFS_DIR_START\n\nas the length argument to memset(). Since s_sys_blocksize is u32,\na crafted filesystem image with s_sys_blocksize < OMFS_DIR_START causes\nan unsigned underflow there, wrapping to a value near 2^32. That drives\na ~4 GiB memset() from bh->b_data + OMFS_DIR_START and overwrites kernel\nmemory far beyond the backing block buffer.\n\nAdd the corresponding lower-bound check alongside the existing upper-bound\ncheck in omfs_fill_super(), so that malformed images are rejected during\nsuperblock validation before any filesystem data is processed."}], "lastModified": "2026-07-06T15:26:25.980", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4BFE5F87-8EF8-405C-970E-8A403D490D87", "versionEndExcluding": "5.10.258", "versionStartIncluding": "2.6.27"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "919C10A9-7951-4A74-BADD-C135A0A8D8B4", "versionEndExcluding": "5.15.209", "versionStartIncluding": "5.11"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "92385813-D91D-480D-83A1-F423D2CBB2BA", "versionEndExcluding": "6.1.175", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "97A9FFFA-22BB-4D5C-9790-5A2286E392F7", "versionEndExcluding": "6.6.141", "versionStartIncluding": "6.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C918746B-DE6F-448F-A93E-A04C5481688D", "versionEndExcluding": "6.12.91", "versionStartIncluding": "6.7"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "96D99E49-380D-43AB-BDBA-25C3AD018A9C", "versionEndExcluding": "6.18.33", "versionStartIncluding": "6.13"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A13475D2-59BF-4716-94B5-7C1D239A2CF4", "versionEndExcluding": "7.0.10", "versionStartIncluding": "6.19"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}