{"schema":"threatline.record/2","record":{"id":"CVE-2026-99003","aliases":[],"summary":"drm/panthor: validate userspace queue count against initialized firmware slot count","details":"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.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99003","source_modified_at":"2026-10-23T12:20:24.476Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Linux","vendor":"Linux","versions":[{"version":"de85488138247d034eb3241840424a54d660926b","lessThan":"4487cf79bf173f2b426a02d102076f8a20d23b96","status":"affected","versionType":"git"},{"version":"de85488138247d034eb3241840424a54d660926b","lessThan":"fdee3570b282a6c8699aea63fa5694355e010ec9","status":"affected","versionType":"git"},{"version":"de85488138247d034eb3241840424a54d660926b","lessThan":"9be126be5f78bc331a930295af97c9b1f9158f06","status":"affected","versionType":"git"},{"version":"de85488138247d034eb3241840424a54d660926b","lessThan":"ec86c43dcfff68eab4db9bdafcd3e2b16e342e18","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99003","source_modified_at":"2026-10-23T12:20:24.476Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.10","status":"affected"},{"version":"0","lessThan":"6.10","status":"unaffected","versionType":"semver"},{"version":"6.12.113","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.57","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.11","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99003","source_modified_at":"2026-10-23T12:20:24.476Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"Linux","ecosystem":null},"version":"4487cf79bf173f2b426a02d102076f8a20d23b96","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99003","source_modified_at":"2026-10-23T12:20:24.476Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"Linux","ecosystem":null},"version":"9be126be5f78bc331a930295af97c9b1f9158f06","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-23T12:20:24.476Z","modified_at":"2026-10-23T12:20:24.476Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-99003","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T12:20:24.476Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/4487cf79bf173f2b426a02d102076f8a20d23b96"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/fdee3570b282a6c8699aea63fa5694355e010ec9"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/9be126be5f78bc331a930295af97c9b1f9158f06"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/ec86c43dcfff68eab4db9bdafcd3e2b16e342e18"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-23T12:20:24.476Z","content_hash":"ed33e4f35ba521edf399df0f79d2696c6c790c538313a6c82e807cb9d529c29a"}}