{"id":"CVE-2026-74297","revision":null,"records":[{"revision":"452f70d209db447dbbcceeccf7f620c5","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-74297","aliases":[],"title":"RDMA/mlx5: Fix undefined shift of user RQ WQE size","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix undefined shift of user RQ WQE size\n\nset_rq_size() computes the RQ WQE size as \"1 << rq_wqe_shift\" based on\nthe user-provided rq_wqe_shift, which is only checked to be greater than\n32, so shifts of 32 are still accepted. A shift of 31 also overflows a\nsigned integer, leading to undefined behavior.\n\nUse check_shl_overflow() to compute the RQ WQE size and reject any\ninvalid values.","state":0,"publishedAt":"2026-08-15T05:58:01.414+00:00","modifiedAt":"2026-10-16T18:55:31.425+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/infiniband/hw/mlx5/qp.c\"\n ],\n \"versions\": [\n {\n \"version\": \"e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c\",\n \"lessThan\": \"9fff54929cc00849d738faa99f06c32399aeb026\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c\",\n \"lessThan\": \"b746f949c2ac2b041102836095d6d4a2ef21fa75\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c\",\n \"lessThan\": \"c1dbf52d24a8cb1aa56780ba51b72e7d495f258c\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c\",\n \"lessThan\": \"6fc874fdfb366bfb11c62e6af9a831c8be59ddda\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c\",\n \"lessThan\": \"42f3d2c8c18b92ea33e506a38b64f1a8986c2823\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c\",\n \"lessThan\": \"4b87a2497276a72fd63028e7419abf0fb7ed837b\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c\",\n \"lessThan\": \"b732db02a2b04cde393638df19de6251ce62a74e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e126ba97dba9edeb6fafa3665b5f8497fc9cdf8c\",\n \"lessThan\": \"d881d60223aac8fdc12b227d89c76e131e92a9cd\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/infiniband/hw/mlx5/qp.c\"\n ],\n \"versions\": [\n {\n \"version\": \"3.11\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"3.11\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.261\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.212\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.178\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.145\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.97\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.40\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1.5\",\n \"lessThanOrEqual\": \"7.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.2\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/9fff54929cc00849d738faa99f06c32399aeb026","https://git.kernel.org/stable/c/b746f949c2ac2b041102836095d6d4a2ef21fa75","https://git.kernel.org/stable/c/c1dbf52d24a8cb1aa56780ba51b72e7d495f258c","https://git.kernel.org/stable/c/6fc874fdfb366bfb11c62e6af9a831c8be59ddda","https://git.kernel.org/stable/c/42f3d2c8c18b92ea33e506a38b64f1a8986c2823","https://git.kernel.org/stable/c/4b87a2497276a72fd63028e7419abf0fb7ed837b","https://git.kernel.org/stable/c/b732db02a2b04cde393638df19de6251ce62a74e","https://git.kernel.org/stable/c/d881d60223aac8fdc12b227d89c76e131e92a9cd"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74297","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-74297","identifiers":["CVE-2026-74297"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-74deb8befe884e018d5d41292ad2230e","complete":false,"records":13654,"lastAttemptAt":"2026-11-09T09:08:46.205394+00:00","lastSuccessAt":"2026-11-09T09:08:46.2607002+00:00","error":null,"lastVerifiedAt":"2026-11-09T09:08:46.2607002+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-09T09:04:02.9162191+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T09:04:02.9162191+00:00","lastSuccessAt":"2026-11-09T09:04:03.197028+00:00","error":null,"lastVerifiedAt":"2026-11-09T09:04:03.1970284+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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