{"id":"CVE-2026-98363","state":"PUBLISHED","title":"firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS\n\nscpi_dvfs_get_info() already rejected a zero opp_count, but still trusted\nany larger value from the SCP firmware. The shared-memory reply only holds\nMAX_DVFS_OPPS entries in buf.opps[]; a bigger count over-reads that array\nand then sizes the allocated OPP table incorrectly (garbage OPPs / OOB).\nThe missing upper bound dates back to the original SCPI DVFS support.\n\nReject zero and out-of-range counts in one check and return -EINVAL.","publishedAt":"2026-10-06T08:46:49.235Z","updatedAt":"2026-10-19T09:18:15.202Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"e9887eeaa138c6b5697af3d2f7c71dc82407b154","versionType":"git"},{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"1aadbef648e92ca642125f188f99b0a26628e3ba","versionType":"git"},{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"7daaa684097377b66b98a832de307688a7f3bbc7","versionType":"git"},{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"f17865332cc4ceaac846bcd7c28badbaedfabeff","versionType":"git"},{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901","versionType":"git"},{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"69ec03cd481973e4be44a7158ed6c0fa06a9a5f9","versionType":"git"},{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"cc563a59aded6f3b02d75dcc3c0bc5e90755d99e","versionType":"git"},{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"32471d84a487c7fd74532bc96be56f8028cf4a3f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scpi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.4","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scpi.c"]}],"references":["https://git.kernel.org/stable/c/e9887eeaa138c6b5697af3d2f7c71dc82407b154","https://git.kernel.org/stable/c/1aadbef648e92ca642125f188f99b0a26628e3ba","https://git.kernel.org/stable/c/7daaa684097377b66b98a832de307688a7f3bbc7","https://git.kernel.org/stable/c/f17865332cc4ceaac846bcd7c28badbaedfabeff","https://git.kernel.org/stable/c/0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901","https://git.kernel.org/stable/c/69ec03cd481973e4be44a7158ed6c0fa06a9a5f9","https://git.kernel.org/stable/c/cc563a59aded6f3b02d75dcc3c0bc5e90755d99e","https://git.kernel.org/stable/c/32471d84a487c7fd74532bc96be56f8028cf4a3f"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98363.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98363","state":"PUBLISHED","datePublished":"2026-10-06T08:46:49.235Z","dateUpdated":"2026-10-19T09:18:15.202Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.344Z"},"containers":{"cna":{"title":"firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS\n\nscpi_dvfs_get_info() already rejected a zero opp_count, but still trusted\nany larger value from the SCP firmware. The shared-memory reply only holds\nMAX_DVFS_OPPS entries in buf.opps[]; a bigger count over-reads that array\nand then sizes the allocated OPP table incorrectly (garbage OPPs / OOB).\nThe missing upper bound dates back to the original SCPI DVFS support.\n\nReject zero and out-of-range counts in one check and return -EINVAL."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"e9887eeaa138c6b5697af3d2f7c71dc82407b154","versionType":"git"},{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"1aadbef648e92ca642125f188f99b0a26628e3ba","versionType":"git"},{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"7daaa684097377b66b98a832de307688a7f3bbc7","versionType":"git"},{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"f17865332cc4ceaac846bcd7c28badbaedfabeff","versionType":"git"},{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901","versionType":"git"},{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"69ec03cd481973e4be44a7158ed6c0fa06a9a5f9","versionType":"git"},{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"cc563a59aded6f3b02d75dcc3c0bc5e90755d99e","versionType":"git"},{"version":"8cb7cf56c9fe5412de238465b27ef35b4d2801aa","status":"affected","lessThan":"32471d84a487c7fd74532bc96be56f8028cf4a3f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scpi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.4","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firmware/arm_scpi.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/e9887eeaa138c6b5697af3d2f7c71dc82407b154"},{"url":"https://git.kernel.org/stable/c/1aadbef648e92ca642125f188f99b0a26628e3ba"},{"url":"https://git.kernel.org/stable/c/7daaa684097377b66b98a832de307688a7f3bbc7"},{"url":"https://git.kernel.org/stable/c/f17865332cc4ceaac846bcd7c28badbaedfabeff"},{"url":"https://git.kernel.org/stable/c/0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901"},{"url":"https://git.kernel.org/stable/c/69ec03cd481973e4be44a7158ed6c0fa06a9a5f9"},{"url":"https://git.kernel.org/stable/c/cc563a59aded6f3b02d75dcc3c0bc5e90755d99e"},{"url":"https://git.kernel.org/stable/c/32471d84a487c7fd74532bc96be56f8028cf4a3f"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:18:15.202Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}