CVE-2022-49044

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The corruption happened in\nintegrity_recalc->integrity_sector_checksum->crypto_shash_final.\n\nFix this corruption by increasing the tags array so that it has enough\npadding at the end to accomodate the loop in integrity_recalc() being\nable to write a full digest size for the last member of the tags\narray."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/md/dm-integrity.c"], "versions": [{"version": "a3fcf7253139609bf9ff901fbf955fba047e75dd", "lessThan": "6a95d91c0b315c965198f6ab7dec7c94129e17e0", "status": "affected", "versionType": "git"}, {"version": "a3fcf7253139609bf9ff901fbf955fba047e75dd", "lessThan": "7f84c937222944c03f4615ca4742df6bed0e5adf", "status": "affected", "versionType": "git"}, {"version": "a3fcf7253139609bf9ff901fbf955fba047e75dd", "lessThan": "cd02b2687d66f0a8e716384de4b9a0671331f1dc", "status": "affected", "versionType": "git"}, {"version": "a3fcf7253139609bf9ff901fbf955fba047e75dd", "lessThan": "6b4bf97587ef6c1927a78934b700204920655123", "status": "affected", "versionType": "git"}, {"version": "a3fcf7253139609bf9ff901fbf955fba047e75dd", "lessThan": "4d485cf9b609709e45d5113e6e2b1b01254b2fe9", "status": "affected", "versionType": "git"}, {"version": "a3fcf7253139609bf9ff901fbf955fba047e75dd", "lessThan": "08c1af8f1c13bbf210f1760132f4df24d0ed46d6", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/md/dm-integrity.c"], "versions": [{"version": "4.19", "status": "affected"}, {"version": "0", "lessThan": "4.19", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.240", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.190", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.112", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.35", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.17.4", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.18", "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": "4.19", "versionEndExcluding": "4.19.240"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "5.4.190"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "5.10.112"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "5.15.35"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "5.17.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19", "versionEndExcluding": "5.18"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6a95d91c0b315c965198f6ab7dec7c94129e17e0"}, {"url": "https://git.kernel.org/stable/c/7f84c937222944c03f4615ca4742df6bed0e5adf"}, {"url": "https://git.kernel.org/stable/c/cd02b2687d66f0a8e716384de4b9a0671331f1dc"}, {"url": "https://git.kernel.org/stable/c/6b4bf97587ef6c1927a78934b700204920655123"}, {"url": "https://git.kernel.org/stable/c/4d485cf9b609709e45d5113e6e2b1b01254b2fe9"}, {"url": "https://git.kernel.org/stable/c/08c1af8f1c13bbf210f1760132f4df24d0ed46d6"}], "title": "dm integrity: fix memory corruption when tag_size is less than digest size", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

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In this\nsituation, a part of the digest beyond tag_size is ignored.\n\nIn this case, dm-integrity would write beyond the end of the\nic->recalc_tags array and corrupt memory. The corruption happened in\nintegrity_recalc->integrity_sector_checksum->crypto_shash_final.\n\nFix this corruption by increasing the tags array so that it has enough\npadding at the end to accomodate the loop in integrity_recalc() being\nable to write a full digest size for the last member of the tags\narray."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: dm integrity: fix memory corrupts when tag_size is less than digest size Es posible configurar dm-integrity de tal manera que el par\u00e1metro \"tag_size\" sea menor que el tama\u00f1o real del resumen. En esta situaci\u00f3n, se ignora una parte del resumen m\u00e1s all\u00e1 de tag_size. En este caso, dm-integrity escribir\u00eda m\u00e1s all\u00e1 del final de la matriz ic->recalc_tags y da\u00f1ar\u00eda la memoria. La corrupci\u00f3n ocurri\u00f3 en integrity_recalc->integrity_sector_checksum->crypto_shash_final. Corrija esta corrupci\u00f3n aumentando la matriz tags para que tenga suficiente relleno al final para acomodar el bucle en integrity_recalc() pudiendo escribir un tama\u00f1o de resumen completo para el \u00faltimo miembro de la matriz tags."}], "id": "CVE-2022-49044", "lastModified": "2026-08-13T00:17:26.760", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2025-02-26T07:00:41.680", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/08c1af8f1c13bbf210f1760132f4df24d0ed46d6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4d485cf9b609709e45d5113e6e2b1b01254b2fe9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6a95d91c0b315c965198f6ab7dec7c94129e17e0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6b4bf97587ef6c1927a78934b700204920655123"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7f84c937222944c03f4615ca4742df6bed0e5adf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/cd02b2687d66f0a8e716384de4b9a0671331f1dc"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-787"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: dm integrity: fix memory corruption when tag_size is less than digest size", "id": "2348282", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2348282"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndm integrity: fix memory corruption when tag_size is less than digest size\nIt is possible to set up dm-integrity in such a way that the\n\"tag_size\" parameter is less than the actual digest size. In this\nsituation, a part of the digest beyond tag_size is ignored.\nIn this case, dm-integrity would write beyond the end of the\nic->recalc_tags array and corrupt memory. The corruption happened in\nintegrity_recalc->integrity_sector_checksum->crypto_shash_final.\nFix this corruption by increasing the tags array so that it has enough\npadding at the end to accomodate the loop in integrity_recalc() being\nable to write a full digest size for the last member of the tags\narray."], "name": "CVE-2022-49044", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Out of support scope", "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-2022-49044\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-49044\nhttps://lore.kernel.org/linux-cve-announce/2025022650-CVE-2022-49044-43d1@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-12T16:01:14.120833+00:00", "updated": "2025-07-12T16:01:14.120887+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}