{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74277", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.880Z", "datePublished": "2026-08-15T05:57:48.814Z", "dateUpdated": "2026-08-15T05:57:48.814Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T05:57:48.814Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/dma-iommu: Fix wrong scatterlist length assignment in P2PDMA path\n\nIn iommu_dma_map_sg(), when handling PCI P2PDMA cases, the DMA length\nof the current scatterlist segment `s` is incorrectly assigned from the\nhead entry `sg->length` instead of the current entry `s->length`.\n\nThis typo causes all P2PDMA segments in the scatterlist to inherit the\nlength of the first segment, leading to corrupted DMA lengths for multi-\nsegment scatterlists.\n\nFix this by using `s->length` instead of `sg->length`."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/iommu/dma-iommu.c"], "versions": [{"version": "a25e7962db0d79882c9d32fd2a67a02e79129c0e", "lessThan": "8646f00ce021e49f4f05bc1d4060a0c27b25d0e1", "status": "affected", "versionType": "git"}, {"version": "a25e7962db0d79882c9d32fd2a67a02e79129c0e", "lessThan": "db50fb87015b955a5a0c155293b2dd40d63a3b9e", "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/iommu/dma-iommu.c"], "versions": [{"version": "6.16", "status": "affected"}, {"version": "0", "lessThan": "6.16", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc1", "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": "6.16", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.2-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8646f00ce021e49f4f05bc1d4060a0c27b25d0e1"}, {"url": "https://git.kernel.org/stable/c/db50fb87015b955a5a0c155293b2dd40d63a3b9e"}], "title": "iommu/dma-iommu: Fix wrong scatterlist length assignment in P2PDMA path", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/iommu/dma-iommu.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "8646f00ce021e49f4f05bc1d4060a0c27b25d0e1", "status": "affected", "version": "a25e7962db0d79882c9d32fd2a67a02e79129c0e", "versionType": "git"}, {"lessThan": "db50fb87015b955a5a0c155293b2dd40d63a3b9e", "status": "affected", "version": "a25e7962db0d79882c9d32fd2a67a02e79129c0e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/iommu/dma-iommu.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.16"}, {"lessThan": "6.16", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niommu/dma-iommu: Fix wrong scatterlist length assignment in P2PDMA path\n\nIn iommu_dma_map_sg(), when handling PCI P2PDMA cases, the DMA length\nof the current scatterlist segment `s` is incorrectly assigned from the\nhead entry `sg->length` instead of the current entry `s->length`.\n\nThis typo causes all P2PDMA segments in the scatterlist to inherit the\nlength of the first segment, leading to corrupted DMA lengths for multi-\nsegment scatterlists.\n\nFix this by using `s->length` instead of `sg->length`."}], "id": "CVE-2026-74277", "lastModified": "2026-08-15T06:22:27.120", "metrics": {}, "published": "2026-08-15T06:22:27.120", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8646f00ce021e49f4f05bc1d4060a0c27b25d0e1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/db50fb87015b955a5a0c155293b2dd40d63a3b9e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}