{"id":"CVE-2026-98146","revision":"1d442b94ccba4bf8a118ffeee45dc14c","records":[{"revision":"1d442b94ccba4bf8a118ffeee45dc14c","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-98146","aliases":[],"title":"accel/amdxdna: Remove __counted_by from struct amdxdna_cmd_chain","description":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/amdxdna: Remove __counted_by from struct amdxdna_cmd_chain\n\nstruct amdxdna_cmd_chain contains a flexible array annotated with\n__counted_by(command_count). Since the structure is stored in shared\nAMDXDNA_BO_SHARE memory, userspace can modify command_count concurrently.\nIf command_count is changed to zero, the bounds check generated from\n__counted_by may fail and trigger a kernel panic.\n\nRemove __counted_by to avoid relying on the userspace-controlled\ncommand_count for the flexible array bounds check.","state":0,"publishedAt":"2026-09-25T10:36:20.303+00:00","modifiedAt":"2026-10-19T09:14:39.513+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/accel/amdxdna/amdxdna_ctx.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"aac243092b707bb3018e951d470cc1a9bcbaba6c\",\n                            \"lessThan\": \"93fa3e925b15b0ded0a549fe7f12bfbb1c4e171a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"aac243092b707bb3018e951d470cc1a9bcbaba6c\",\n                            \"lessThan\": \"52f3e086760a9a3e02a46a10b57caffd73b1c204\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"aac243092b707bb3018e951d470cc1a9bcbaba6c\",\n                            \"lessThan\": \"b3709d354545e70388177500761f92d906c4dfd6\",\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/accel/amdxdna/amdxdna_ctx.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.14\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.14\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.53\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.7\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/93fa3e925b15b0ded0a549fe7f12bfbb1c4e171a","https://git.kernel.org/stable/c/52f3e086760a9a3e02a46a10b57caffd73b1c204","https://git.kernel.org/stable/c/b3709d354545e70388177500761f92d906c4dfd6"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98146","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-98146","identifiers":["CVE-2026-98146"]},"retained":false,"historicalAffected":[]}],"coverage":[]}