{"id":"CVE-2026-90409","revision":null,"records":[{"revision":"b22c23ff21b4437d974cbd097952d923","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90409","aliases":[],"title":"drm/panthor: Add vm_bind region with kbo range overlap check","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: Add vm_bind region with kbo range overlap check\n\nWhen a VM is created, caller has to specify the range of the address space\ncarve-out set aside for mapping kernel BO's. That means vm_bind mappings of\nUM-exposed BO's should not intersect with that region, but at the moment\nwe're not checking this.\n\nAt first, I thought of giving these values to drm_gpuvm_init() through its\nreserve_{offset, range} arguments, but it turns out that is meant for VM\naddress spans that are not managed through the usual drm_gpuvm split/merge\ncircuit, so storing the end of the user VA range at VM creation time and\ndoing a quick check in the vm_bind ioctl path was the simplest workaround.\n\nThe new check also makes sure vm_bind range doesn't overflow the size of a\n64-bit unsigned integer. That was already being done further down the call\nstack inside drm_gpuvm_sm_map -> drm_gpuvm_range_valid, but it's best to\nfail early in the driver before GPUVM functions are invoked so that we\nwon't waste time allocating vm_bind context resources.","state":0,"publishedAt":"2026-09-17T16:09:36.74+00:00","modifiedAt":"2026-10-21T12:51:32.495+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_mmu.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"647810ec247641eb5aec8caef818919a4518a0b1\",\n                            \"lessThan\": \"276753aaad65e6f7dac7989a600c1c2d3a382c1a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"647810ec247641eb5aec8caef818919a4518a0b1\",\n                            \"lessThan\": \"f2be47fa8e225968eb66863657143fe900ec4bca\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"647810ec247641eb5aec8caef818919a4518a0b1\",\n                            \"lessThan\": \"761cf9c63274a5b711c3dc829601723215710d2d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"647810ec247641eb5aec8caef818919a4518a0b1\",\n                            \"lessThan\": \"985f5e12f3cdf43030e13c2bbd154913133b5c3f\",\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_mmu.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\": \"6.12.114\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.57\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\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/276753aaad65e6f7dac7989a600c1c2d3a382c1a","https://git.kernel.org/stable/c/f2be47fa8e225968eb66863657143fe900ec4bca","https://git.kernel.org/stable/c/761cf9c63274a5b711c3dc829601723215710d2d","https://git.kernel.org/stable/c/985f5e12f3cdf43030e13c2bbd154913133b5c3f"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90409","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90409","identifiers":["CVE-2026-90409"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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