{"api_version":"1","generated_at":"2026-08-16T02:08:53+00:00","cve":"CVE-2026-74452","urls":{"html":"https://cve.report/CVE-2026-74452","api":"https://cve.report/api/cve/CVE-2026-74452.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74452","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74452"},"summary":{"title":"drm/panthor: reject firmware sections with oversized data","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: reject firmware sections with oversized data\n\nIn panthor_fw_load_section_entry(), the data size to copy is calculated\nwithout validating it against the allocated section_size:\n\n    section->data.size = hdr.data.end - hdr.data.start;\n\nIf a crafted firmware sets data.size larger than the allocated memory,\nthis could cause a heap buffer overflow in panthor_fw_init_section_mem()\n\n    memcpy(section->mem->kmap, section->data.buf, section->data.size);\n\nAdditionally, if the section->data.size exceeds the BO size, could this\nmemset underflow the size calculation, leading to a massive out-of-bounds\nzeroing of kernel memory?\n\n    memset(section->mem->kmap + section->data.size, 0,\n           panthor_kernel_bo_size(section->mem) - section->data.size);\n\nReject section entries whose initial data is larger than the section size.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 13:17:49","updated_at":"2026-08-15 13:17:49"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/a3caaa06809248b996254be5b47e10804a3494e2","name":"https://git.kernel.org/stable/c/a3caaa06809248b996254be5b47e10804a3494e2","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7f4674d986c15c74327cb6ac6e2e2afecf061e04","name":"https://git.kernel.org/stable/c/7f4674d986c15c74327cb6ac6e2e2afecf061e04","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0e57165ca025a67d8dfd17efd2765fdd4925fdab","name":"https://git.kernel.org/stable/c/0e57165ca025a67d8dfd17efd2765fdd4925fdab","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2a761b9be5863e1d26a584f0c2d1e114a684ed9a","name":"https://git.kernel.org/stable/c/2a761b9be5863e1d26a584f0c2d1e114a684ed9a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74452","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74452","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2718d91816eeed03c09c8abe872e45f59078768c 0e57165ca025a67d8dfd17efd2765fdd4925fdab git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2718d91816eeed03c09c8abe872e45f59078768c 2a761b9be5863e1d26a584f0c2d1e114a684ed9a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2718d91816eeed03c09c8abe872e45f59078768c 7f4674d986c15c74327cb6ac6e2e2afecf061e04 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2718d91816eeed03c09c8abe872e45f59078768c a3caaa06809248b996254be5b47e10804a3494e2 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 6.12.103 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.44 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.8 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc6 * 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_fw.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0e57165ca025a67d8dfd17efd2765fdd4925fdab","status":"affected","version":"2718d91816eeed03c09c8abe872e45f59078768c","versionType":"git"},{"lessThan":"2a761b9be5863e1d26a584f0c2d1e114a684ed9a","status":"affected","version":"2718d91816eeed03c09c8abe872e45f59078768c","versionType":"git"},{"lessThan":"7f4674d986c15c74327cb6ac6e2e2afecf061e04","status":"affected","version":"2718d91816eeed03c09c8abe872e45f59078768c","versionType":"git"},{"lessThan":"a3caaa06809248b996254be5b47e10804a3494e2","status":"affected","version":"2718d91816eeed03c09c8abe872e45f59078768c","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/panthor/panthor_fw.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":"6.12.103","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.44","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc6","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.103","versionStartIncluding":"6.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.44","versionStartIncluding":"6.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.8","versionStartIncluding":"6.10","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc6","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: reject firmware sections with oversized data\n\nIn panthor_fw_load_section_entry(), the data size to copy is calculated\nwithout validating it against the allocated section_size:\n\n    section->data.size = hdr.data.end - hdr.data.start;\n\nIf a crafted firmware sets data.size larger than the allocated memory,\nthis could cause a heap buffer overflow in panthor_fw_init_section_mem()\n\n    memcpy(section->mem->kmap, section->data.buf, section->data.size);\n\nAdditionally, if the section->data.size exceeds the BO size, could this\nmemset underflow the size calculation, leading to a massive out-of-bounds\nzeroing of kernel memory?\n\n    memset(section->mem->kmap + section->data.size, 0,\n           panthor_kernel_bo_size(section->mem) - section->data.size);\n\nReject section entries whose initial data is larger than the section size."}],"providerMetadata":{"dateUpdated":"2026-08-15T12:26:56.331Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/0e57165ca025a67d8dfd17efd2765fdd4925fdab"},{"url":"https://git.kernel.org/stable/c/2a761b9be5863e1d26a584f0c2d1e114a684ed9a"},{"url":"https://git.kernel.org/stable/c/7f4674d986c15c74327cb6ac6e2e2afecf061e04"},{"url":"https://git.kernel.org/stable/c/a3caaa06809248b996254be5b47e10804a3494e2"}],"title":"drm/panthor: reject firmware sections with oversized data","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74452","datePublished":"2026-08-15T12:26:56.331Z","dateReserved":"2026-08-15T05:44:03.899Z","dateUpdated":"2026-08-15T12:26:56.331Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 13:17:49","lastModifiedDate":"2026-08-15 13:17:49","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74452","Ordinal":"1","Title":"drm/panthor: reject firmware sections with oversized data","CVE":"CVE-2026-74452","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74452","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: reject firmware sections with oversized data\n\nIn panthor_fw_load_section_entry(), the data size to copy is calculated\nwithout validating it against the allocated section_size:\n\n    section->data.size = hdr.data.end - hdr.data.start;\n\nIf a crafted firmware sets data.size larger than the allocated memory,\nthis could cause a heap buffer overflow in panthor_fw_init_section_mem()\n\n    memcpy(section->mem->kmap, section->data.buf, section->data.size);\n\nAdditionally, if the section->data.size exceeds the BO size, could this\nmemset underflow the size calculation, leading to a massive out-of-bounds\nzeroing of kernel memory?\n\n    memset(section->mem->kmap + section->data.size, 0,\n           panthor_kernel_bo_size(section->mem) - section->data.size);\n\nReject section entries whose initial data is larger than the section size.","Type":"Description","Title":"drm/panthor: reject firmware sections with oversized data"}]}}}