{"api_version":"1","generated_at":"2026-10-27T11:02:19+00:00","cve":"CVE-2026-99003","urls":{"html":"https://cve.report/CVE-2026-99003","api":"https://cve.report/api/cve/CVE-2026-99003.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-99003","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-99003"},"summary":{"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":"PUBLISHED","assigner":"Linux","published_at":"2026-10-23 13:17:22","updated_at":"2026-10-23 13:17:22"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/9be126be5f78bc331a930295af97c9b1f9158f06","name":"https://git.kernel.org/stable/c/9be126be5f78bc331a930295af97c9b1f9158f06","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fdee3570b282a6c8699aea63fa5694355e010ec9","name":"https://git.kernel.org/stable/c/fdee3570b282a6c8699aea63fa5694355e010ec9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ec86c43dcfff68eab4db9bdafcd3e2b16e342e18","name":"https://git.kernel.org/stable/c/ec86c43dcfff68eab4db9bdafcd3e2b16e342e18","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4487cf79bf173f2b426a02d102076f8a20d23b96","name":"https://git.kernel.org/stable/c/4487cf79bf173f2b426a02d102076f8a20d23b96","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-99003","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-99003","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected de85488138247d034eb3241840424a54d660926b 4487cf79bf173f2b426a02d102076f8a20d23b96 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected de85488138247d034eb3241840424a54d660926b fdee3570b282a6c8699aea63fa5694355e010ec9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected de85488138247d034eb3241840424a54d660926b 9be126be5f78bc331a930295af97c9b1f9158f06 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected de85488138247d034eb3241840424a54d660926b ec86c43dcfff68eab4db9bdafcd3e2b16e342e18 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.10","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.10 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.113 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.57 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.11 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/panthor/panthor_sched.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"4487cf79bf173f2b426a02d102076f8a20d23b96","status":"affected","version":"de85488138247d034eb3241840424a54d660926b","versionType":"git"},{"lessThan":"fdee3570b282a6c8699aea63fa5694355e010ec9","status":"affected","version":"de85488138247d034eb3241840424a54d660926b","versionType":"git"},{"lessThan":"9be126be5f78bc331a930295af97c9b1f9158f06","status":"affected","version":"de85488138247d034eb3241840424a54d660926b","versionType":"git"},{"lessThan":"ec86c43dcfff68eab4db9bdafcd3e2b16e342e18","status":"affected","version":"de85488138247d034eb3241840424a54d660926b","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/panthor/panthor_sched.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.10"},{"lessThan":"6.10","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.113","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.57","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.11","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.113","versionStartIncluding":"6.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.57","versionStartIncluding":"6.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.11","versionStartIncluding":"6.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"6.10","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"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."}],"providerMetadata":{"dateUpdated":"2026-10-23T12:20:24.476Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/4487cf79bf173f2b426a02d102076f8a20d23b96"},{"url":"https://git.kernel.org/stable/c/fdee3570b282a6c8699aea63fa5694355e010ec9"},{"url":"https://git.kernel.org/stable/c/9be126be5f78bc331a930295af97c9b1f9158f06"},{"url":"https://git.kernel.org/stable/c/ec86c43dcfff68eab4db9bdafcd3e2b16e342e18"}],"title":"drm/panthor: validate userspace queue count against initialized firmware slot count","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-99003","datePublished":"2026-10-23T12:20:24.476Z","dateReserved":"2026-09-25T10:25:14.385Z","dateUpdated":"2026-10-23T12:20:24.476Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-23 13:17:22","lastModifiedDate":"2026-10-23 13:17:22","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"99003","Ordinal":"1","Title":"drm/panthor: validate userspace queue count against initialized ","CVE":"CVE-2026-99003","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"99003","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"drm/panthor: validate userspace queue count against initialized "}]}}}