{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74491", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.906Z", "datePublished": "2026-08-15T12:27:20.759Z", "dateUpdated": "2026-08-15T12:27:20.759Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T12:27:20.759Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nof/address: Fix NULL bus dereference in of_pci_range_parser_one()\n\nThe bus matching rework made of_match_bus() return NULL for nodes with\nranges/dma-ranges but no local #address-cells. parser_init() stored that\nNULL bus, and the range iterator later dereferenced it.\n\nReject such nodes in parser_init(), leaving an explicit empty\niterator for callers that ignore the init return, and make\nof_dma_get_max_cpu_address() honour the init failure so a rejected node\ncannot clamp the DMA limit."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/of/address.c"], "versions": [{"version": "64ee3cf096ac590e7da2ceac1c390546bff5e240", "lessThan": "88752b811f72aa7a16de6dad4b25031d7308673e", "status": "affected", "versionType": "git"}, {"version": "64ee3cf096ac590e7da2ceac1c390546bff5e240", "lessThan": "eddd0159a8761a16a9d183676b03cf493417816e", "status": "affected", "versionType": "git"}, {"version": "64ee3cf096ac590e7da2ceac1c390546bff5e240", "lessThan": "bba13ad17b1a11b3f1ed9b3a5d556191d7755a59", "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/of/address.c"], "versions": [{"version": "6.13", "status": "affected"}, {"version": "0", "lessThan": "6.13", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.44", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.8", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc6", "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": "6.13", "versionEndExcluding": "6.18.44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.1.8"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.13", "versionEndExcluding": "7.2-rc6"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/88752b811f72aa7a16de6dad4b25031d7308673e"}, {"url": "https://git.kernel.org/stable/c/eddd0159a8761a16a9d183676b03cf493417816e"}, {"url": "https://git.kernel.org/stable/c/bba13ad17b1a11b3f1ed9b3a5d556191d7755a59"}], "title": "of/address: Fix NULL bus dereference in of_pci_range_parser_one()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/of/address.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "88752b811f72aa7a16de6dad4b25031d7308673e", "status": "affected", "version": "64ee3cf096ac590e7da2ceac1c390546bff5e240", "versionType": "git"}, {"lessThan": "eddd0159a8761a16a9d183676b03cf493417816e", "status": "affected", "version": "64ee3cf096ac590e7da2ceac1c390546bff5e240", "versionType": "git"}, {"lessThan": "bba13ad17b1a11b3f1ed9b3a5d556191d7755a59", "status": "affected", "version": "64ee3cf096ac590e7da2ceac1c390546bff5e240", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/of/address.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.13"}, {"lessThan": "6.13", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.44", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.8", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2-rc6", "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\nof/address: Fix NULL bus dereference in of_pci_range_parser_one()\n\nThe bus matching rework made of_match_bus() return NULL for nodes with\nranges/dma-ranges but no local #address-cells. parser_init() stored that\nNULL bus, and the range iterator later dereferenced it.\n\nReject such nodes in parser_init(), leaving an explicit empty\niterator for callers that ignore the init return, and make\nof_dma_get_max_cpu_address() honour the init failure so a rejected node\ncannot clamp the DMA limit."}], "id": "CVE-2026-74491", "lastModified": "2026-08-15T13:17:54.020", "metrics": {}, "published": "2026-08-15T13:17:54.020", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/88752b811f72aa7a16de6dad4b25031d7308673e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bba13ad17b1a11b3f1ed9b3a5d556191d7755a59"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/eddd0159a8761a16a9d183676b03cf493417816e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"created": "2026-08-15T14:15:03.645288+00:00", "title": "Kernel Crash from Null Dereference in PCI Range Parser", "updated": "2026-08-15T14:15:03.645294+00:00", "vendors": [], "weaknesses": ["CWE-476"]}