{"id":"CVE-2026-80577","state":"PUBLISHED","title":"drm/panthor: skip zero-sized firmware sections","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: skip zero-sized firmware sections\n\npanthor_fw_load_section_entry() skips BO creation when the firmware section\nVA range is empty. If such a section is added to the firmware section list,\nsection->mem is left as NULL.\n\nLater reload and unplug paths iterate over all firmware sections and\ndereference section->mem, which can lead to a NULL pointer dereference.\n\nZero-sized firmware sections are valid, so accept them as no-op entries but\nskip adding them to the section list.","publishedAt":"2026-08-26T14:37:36.132Z","updatedAt":"2026-08-26T14:37:36.132Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"2718d91816eeed03c09c8abe872e45f59078768c","status":"affected","lessThan":"f0f3c3922db981031733a25c51e1f37cf9b9e251","versionType":"git"},{"version":"2718d91816eeed03c09c8abe872e45f59078768c","status":"affected","lessThan":"25556a46ae6ecf2a9f1c1c5096828eecd4596b91","versionType":"git"},{"version":"2718d91816eeed03c09c8abe872e45f59078768c","status":"affected","lessThan":"5d222b657f02a37f658e4e21925b85b4703855e7","versionType":"git"},{"version":"2718d91816eeed03c09c8abe872e45f59078768c","status":"affected","lessThan":"2b8f13d3c7e26c46c20d9e367904cf01729c88e6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/panthor/panthor_fw.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.10","versionType":"semver"},{"version":"6.12.105","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.46","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.10","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/panthor/panthor_fw.c"]}],"references":["https://git.kernel.org/stable/c/f0f3c3922db981031733a25c51e1f37cf9b9e251","https://git.kernel.org/stable/c/25556a46ae6ecf2a9f1c1c5096828eecd4596b91","https://git.kernel.org/stable/c/5d222b657f02a37f658e4e21925b85b4703855e7","https://git.kernel.org/stable/c/2b8f13d3c7e26c46c20d9e367904cf01729c88e6"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/80xxx/CVE-2026-80577.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80577","state":"PUBLISHED","datePublished":"2026-08-26T14:37:36.132Z","dateUpdated":"2026-08-26T14:37:36.132Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-26T14:34:25.768Z"},"containers":{"cna":{"title":"drm/panthor: skip zero-sized firmware sections","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: skip zero-sized firmware sections\n\npanthor_fw_load_section_entry() skips BO creation when the firmware section\nVA range is empty. If such a section is added to the firmware section list,\nsection->mem is left as NULL.\n\nLater reload and unplug paths iterate over all firmware sections and\ndereference section->mem, which can lead to a NULL pointer dereference.\n\nZero-sized firmware sections are valid, so accept them as no-op entries but\nskip adding them to the section list."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"2718d91816eeed03c09c8abe872e45f59078768c","status":"affected","lessThan":"f0f3c3922db981031733a25c51e1f37cf9b9e251","versionType":"git"},{"version":"2718d91816eeed03c09c8abe872e45f59078768c","status":"affected","lessThan":"25556a46ae6ecf2a9f1c1c5096828eecd4596b91","versionType":"git"},{"version":"2718d91816eeed03c09c8abe872e45f59078768c","status":"affected","lessThan":"5d222b657f02a37f658e4e21925b85b4703855e7","versionType":"git"},{"version":"2718d91816eeed03c09c8abe872e45f59078768c","status":"affected","lessThan":"2b8f13d3c7e26c46c20d9e367904cf01729c88e6","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/panthor/panthor_fw.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.10","versionType":"semver"},{"version":"6.12.105","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.46","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.10","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/panthor/panthor_fw.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/f0f3c3922db981031733a25c51e1f37cf9b9e251"},{"url":"https://git.kernel.org/stable/c/25556a46ae6ecf2a9f1c1c5096828eecd4596b91"},{"url":"https://git.kernel.org/stable/c/5d222b657f02a37f658e4e21925b85b4703855e7"},{"url":"https://git.kernel.org/stable/c/2b8f13d3c7e26c46c20d9e367904cf01729c88e6"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-26T14:37:36.132Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.12.105"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.18.46"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"7.1.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}