{"id":"CVE-2026-99003","revision":"c7b1570808ef42cb8212dba2c10993e4","records":[{"revision":"c7b1570808ef42cb8212dba2c10993e4","observedAt":"2026-10-23T16:01:20.601+00:00","statement":{"source":"cve-program","id":"CVE-2026-99003","aliases":[],"title":"drm/panthor: validate userspace queue count against initialized firmware slot count","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: validate userspace queue count against initialized firmware slot count\n\nIn panthor_drv.c:panthor_ioctl_group_create(),\nthe queue count is validated against the hardcoded maximum:\n\n\tif (!args->queues.count || args->queues.count > MAX_CS_PER_CSG)\n\t\treturn -EINVAL;\n\nHowever, if the firmware reports fewer slots than MAX_CS_PER_CSG,\npanthor_fw_init_ifaces() will only initialize that smaller number of\nstream interfaces.\n\nIf unprivileged userspace requests more queues than the firmware reported\n(but no more than MAX_CS_PER_CSG), cs_slot_prog_locked() fetches an\nuninitialized stream interface and may crash when dereferencing\ncs_iface->input->ringbuf_base.","state":0,"publishedAt":"2026-10-23T12:20:24.476+00:00","modifiedAt":"2026-10-23T12:20:24.476+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_sched.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"de85488138247d034eb3241840424a54d660926b\",\n                            \"lessThan\": \"4487cf79bf173f2b426a02d102076f8a20d23b96\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"de85488138247d034eb3241840424a54d660926b\",\n                            \"lessThan\": \"fdee3570b282a6c8699aea63fa5694355e010ec9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"de85488138247d034eb3241840424a54d660926b\",\n                            \"lessThan\": \"9be126be5f78bc331a930295af97c9b1f9158f06\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"de85488138247d034eb3241840424a54d660926b\",\n                            \"lessThan\": \"ec86c43dcfff68eab4db9bdafcd3e2b16e342e18\",\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_sched.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\": \"6.12.113\",\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\": \"7.2.11\",\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/4487cf79bf173f2b426a02d102076f8a20d23b96","https://git.kernel.org/stable/c/fdee3570b282a6c8699aea63fa5694355e010ec9","https://git.kernel.org/stable/c/9be126be5f78bc331a930295af97c9b1f9158f06","https://git.kernel.org/stable/c/ec86c43dcfff68eab4db9bdafcd3e2b16e342e18"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-99003","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-99003","identifiers":["CVE-2026-99003"]},"retained":false,"historicalAffected":[]}],"coverage":[]}