{"id":"CVE-2026-53146","revision":"edb8acde2e6943ca828125c35ffaa5ef","records":[{"revision":"edb8acde2e6943ca828125c35ffaa5ef","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-53146","aliases":[],"title":"thunderbolt: Limit XDomain response copy to actual frame size","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Limit XDomain response copy to actual frame size\n\ntb_xdomain_copy() copies req->response_size bytes from the received\npacket buffer regardless of the actual frame size.  When a short\nresponse arrives, this reads past the valid frame data in the DMA\npool buffer into stale contents from previous transactions.\n\nUse the minimum of frame size and expected response size for the\ncopy length.","state":0,"publishedAt":"2026-06-25T08:38:32.877+00:00","modifiedAt":"2026-10-19T19:57:25.679+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/thunderbolt/xdomain.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"cdae7c07e3e3509eaabc18c1640a55dc5b99c179\",\n                            \"lessThan\": \"c55da494dfb445fb28df3a9d293c2be6a299cd01\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cdae7c07e3e3509eaabc18c1640a55dc5b99c179\",\n                            \"lessThan\": \"7720654b4842bcdfeb64bc002f6186041849e1e7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cdae7c07e3e3509eaabc18c1640a55dc5b99c179\",\n                            \"lessThan\": \"033dfa63bf6be2653441a1dccae4a8313a91bb9d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cdae7c07e3e3509eaabc18c1640a55dc5b99c179\",\n                            \"lessThan\": \"fc261397295b8ad0654cec747b0ec25ea0011995\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cdae7c07e3e3509eaabc18c1640a55dc5b99c179\",\n                            \"lessThan\": \"a15b6d3136accb2bf84b04d9a3ddd991f7fbf1cb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cdae7c07e3e3509eaabc18c1640a55dc5b99c179\",\n                            \"lessThan\": \"b5daa920f44cb582272fc9bfaeb67408776cbaef\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cdae7c07e3e3509eaabc18c1640a55dc5b99c179\",\n                            \"lessThan\": \"b2c1e5d9f1598cc1a4736d5c6bd1218f90805ee4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"cdae7c07e3e3509eaabc18c1640a55dc5b99c179\",\n                            \"lessThan\": \"4db2bd2ed4785dbadaeeab9f4e346b21ac5fb8eb\",\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/thunderbolt/xdomain.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.15\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.259\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.210\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.176\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.143\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.94\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.36\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0.13\",\n                            \"lessThanOrEqual\": \"7.0.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N","score":7.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/c55da494dfb445fb28df3a9d293c2be6a299cd01","https://git.kernel.org/stable/c/7720654b4842bcdfeb64bc002f6186041849e1e7","https://git.kernel.org/stable/c/033dfa63bf6be2653441a1dccae4a8313a91bb9d","https://git.kernel.org/stable/c/fc261397295b8ad0654cec747b0ec25ea0011995","https://git.kernel.org/stable/c/a15b6d3136accb2bf84b04d9a3ddd991f7fbf1cb","https://git.kernel.org/stable/c/b5daa920f44cb582272fc9bfaeb67408776cbaef","https://git.kernel.org/stable/c/b2c1e5d9f1598cc1a4736d5c6bd1218f90805ee4","https://git.kernel.org/stable/c/4db2bd2ed4785dbadaeeab9f4e346b21ac5fb8eb"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53146","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-53146","identifiers":["CVE-2026-53146"]},"retained":false,"historicalAffected":[]}],"coverage":[]}