{"id":"CVE-2026-74297","revision":"452f70d209db447dbbcceeccf7f620c5","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":[]}