{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74273", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.879Z", "datePublished": "2026-08-15T05:57:46.134Z", "dateUpdated": "2026-08-15T05:57:46.134Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T05:57:46.134Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncxl/region: Block region delete during region creation\n\nExpand the range lock, rename it \"regions_lock\", to disable region deletion\nin the critical period between construct_region() and attach_target(), as\nwell as the period between device_add() and registering the remove actions.\n\nOtherwise, userspace can confuse the kernel. It can violate the assumption\nthe region stays registered through the completion of cxl_add_to_region().\nIt can violate the assumption that devm_add_action_or_reset() is working\nwith a live 'struct cxl_region'.\n\nIt is ok for the region to disappear outside of those windows as that\nmirrors device hotplug flows where the proper locks are held."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/cxl/core/port.c", "drivers/cxl/core/region.c", "drivers/cxl/cxl.h"], "versions": [{"version": "a32320b71f085f8d82afedcf285f1682c8c00aed", "lessThan": "b0b6a9c65cb72c901fdcc6ae83d7afd70cdca1b8", "status": "affected", "versionType": "git"}, {"version": "a32320b71f085f8d82afedcf285f1682c8c00aed", "lessThan": "d91feb88692e81b00cd22f0125cfcd04970b4a0b", "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/cxl/core/port.c", "drivers/cxl/core/region.c", "drivers/cxl/cxl.h"], "versions": [{"version": "6.3", "status": "affected"}, {"version": "0", "lessThan": "6.3", "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": "6.3", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.3", "versionEndExcluding": "7.2-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/b0b6a9c65cb72c901fdcc6ae83d7afd70cdca1b8"}, {"url": "https://git.kernel.org/stable/c/d91feb88692e81b00cd22f0125cfcd04970b4a0b"}], "title": "cxl/region: Block region delete during region creation", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/cxl/core/port.c", "drivers/cxl/core/region.c", "drivers/cxl/cxl.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "b0b6a9c65cb72c901fdcc6ae83d7afd70cdca1b8", "status": "affected", "version": "a32320b71f085f8d82afedcf285f1682c8c00aed", "versionType": "git"}, {"lessThan": "d91feb88692e81b00cd22f0125cfcd04970b4a0b", "status": "affected", "version": "a32320b71f085f8d82afedcf285f1682c8c00aed", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/cxl/core/port.c", "drivers/cxl/core/region.c", "drivers/cxl/cxl.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.3"}, {"lessThan": "6.3", "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\ncxl/region: Block region delete during region creation\n\nExpand the range lock, rename it \"regions_lock\", to disable region deletion\nin the critical period between construct_region() and attach_target(), as\nwell as the period between device_add() and registering the remove actions.\n\nOtherwise, userspace can confuse the kernel. It can violate the assumption\nthe region stays registered through the completion of cxl_add_to_region().\nIt can violate the assumption that devm_add_action_or_reset() is working\nwith a live 'struct cxl_region'.\n\nIt is ok for the region to disappear outside of those windows as that\nmirrors device hotplug flows where the proper locks are held."}], "id": "CVE-2026-74273", "lastModified": "2026-08-15T06:22:26.697", "metrics": {}, "published": "2026-08-15T06:22:26.697", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b0b6a9c65cb72c901fdcc6ae83d7afd70cdca1b8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d91feb88692e81b00cd22f0125cfcd04970b4a0b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"created": "2026-08-15T18:00:11.224513+00:00", "updated": "2026-08-15T18:00:11.224519+00:00", "vendors": [], "weaknesses": ["CWE-416", "CWE-362"]}