{"id":"CVE-2026-89826","revision":"ac6f4b25c7994303a1a846d12d393e76","records":[{"revision":"ac6f4b25c7994303a1a846d12d393e76","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89826","aliases":[],"title":"drm/panthor: harden firmware build-info bounds checks","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: harden firmware build-info bounds checks\n\npanthor_fw_read_build_info() checks whether the metadata range fits in the\nfirmware image with hdr.meta_start + hdr.meta_size. Both fields are u32, so\nthe addition can wrap and let an out-of-bounds range pass validation.\n\nThe function also reads the \"git_sha: \" prefix without first checking that\nthe metadata is long enough, and meta_size == 0 can underflow the NULL\nterminator index.\n\nUse subtraction-based bounds checking and reject metadata that is too short\nto contain the expected prefix and trailing NULL byte.","state":0,"publishedAt":"2026-09-16T10:30:58.435+00:00","modifiedAt":"2026-10-19T08:53:20.074+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/gpu/drm/panthor/panthor_fw.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"2718d91816eeed03c09c8abe872e45f59078768c\",\n                            \"lessThan\": \"5516f1acfd07564361cf306cc90a8e513df0f096\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"2718d91816eeed03c09c8abe872e45f59078768c\",\n                            \"lessThan\": \"6ae19dce3e8c13ae73590b3f4311abe9f96bbae8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"2718d91816eeed03c09c8abe872e45f59078768c\",\n                            \"lessThan\": \"8321b093fa6c297b80586460ce6914d9655df170\",\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/gpu/drm/panthor/panthor_fw.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.10\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.10\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.51\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.5\",\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":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","score":7.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/5516f1acfd07564361cf306cc90a8e513df0f096","https://git.kernel.org/stable/c/6ae19dce3e8c13ae73590b3f4311abe9f96bbae8","https://git.kernel.org/stable/c/8321b093fa6c297b80586460ce6914d9655df170"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89826","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89826","identifiers":["CVE-2026-89826"]},"retained":false,"historicalAffected":[]}],"coverage":[]}