{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2024-41084", "ASSIGNER": "cve@kernel.org", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncxl/region: Avoid null pointer dereference in region lookup\n\ncxl_dpa_to_region() looks up a region based on a memdev and DPA.\nIt wrongly assumes an endpoint found mapping the DPA is also of\na fully assembled region. When not true it leads to a null pointer\ndereference looking up the region name.\n\nThis appears during testing of region lookup after a failure to\nassemble a BIOS defined region or if the lookup raced with the\nassembly of the BIOS defined region.\n\nFailure to clean up BIOS defined regions that fail assembly is an\nissue in itself and a fix to that problem will alleviate some of\nthe impact. It will not alleviate the race condition so let's harden\nthis path.\n\nThe behavior change is that the kernel oops due to a null pointer\ndereference is replaced with a dev_dbg() message noting that an\nendpoint was mapped.\n\nAdditional comments are added so that future users of this function\ncan more clearly understand what it provides." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Linux", "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "<", "version_name": "0a105ab28a4d", "version_value": "a9e099e29e92" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "version": "6.4", "status": "affected" }, { "version": "0", "lessThan": "6.4", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.37", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9.8", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ], "defaultStatus": "affected" } } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://git.kernel.org/stable/c/a9e099e29e925f8b31cfe53e8a786b9796f8e453", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/a9e099e29e925f8b31cfe53e8a786b9796f8e453" }, { "url": "https://git.kernel.org/stable/c/b8a40a6dbfb0150c1081384caa9bbe28ce5d5060", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/b8a40a6dbfb0150c1081384caa9bbe28ce5d5060" }, { "url": "https://git.kernel.org/stable/c/285f2a08841432fc3e498b1cd00cce5216cdf189", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/285f2a08841432fc3e498b1cd00cce5216cdf189" } ] }, "generator": { "engine": "bippy-9e1c9544281a" } }