{"id":"CVE-2025-71300","state":"PUBLISHED","title":"Revert \"arm64: zynqmp: Add an OP-TEE node to the device tree\"","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"arm64: zynqmp: Add an OP-TEE node to the device tree\"\n\nThis reverts commit 06d22ed6b6635b17551f386b50bb5aaff9b75fbe.\n\nOP-TEE logic in U-Boot automatically injects a reserved-memory\nnode along with optee firmware node to kernel device tree.\nThe injection logic is dependent on that there is no manually\ndefined optee node. Having the node in zynqmp.dtsi effectively\nbreaks OP-TEE's insertion of the reserved-memory node, causing\nmemory access violations during runtime.","publishedAt":"2026-05-08T13:15:21.406Z","updatedAt":"2026-08-05T12:12:43.409Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"Linux"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"06d22ed6b6635b17551f386b50bb5aaff9b75fbe","status":"affected","lessThan":"eece81eeda10eb42c687399fb5aa69977ae15664","versionType":"git"},{"version":"06d22ed6b6635b17551f386b50bb5aaff9b75fbe","status":"affected","lessThan":"3983ef126e439900bbf419724a9759863c146660","versionType":"git"},{"version":"06d22ed6b6635b17551f386b50bb5aaff9b75fbe","status":"affected","lessThan":"2a833c730d4e8d1cc10953270ce0f3a156145d81","versionType":"git"},{"version":"06d22ed6b6635b17551f386b50bb5aaff9b75fbe","status":"affected","lessThan":"c197179990124f991fca220d97fac56779a02c6d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/arm64/boot/dts/xilinx/zynqmp.dtsi"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.9","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/arm64/boot/dts/xilinx/zynqmp.dtsi"]}],"references":["https://git.kernel.org/stable/c/eece81eeda10eb42c687399fb5aa69977ae15664","https://git.kernel.org/stable/c/3983ef126e439900bbf419724a9759863c146660","https://git.kernel.org/stable/c/2a833c730d4e8d1cc10953270ce0f3a156145d81","https://git.kernel.org/stable/c/c197179990124f991fca220d97fac56779a02c6d"],"weaknesses":[],"ingestedAt":"2026-10-29T20:10:04.440Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/71xxx/CVE-2025-71300.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-71300","state":"PUBLISHED","datePublished":"2026-05-08T13:15:21.406Z","dateUpdated":"2026-08-05T12:12:43.409Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-08T13:14:33.087Z"},"containers":{"cna":{"title":"Revert \"arm64: zynqmp: Add an OP-TEE node to the device tree\"","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"arm64: zynqmp: Add an OP-TEE node to the device tree\"\n\nThis reverts commit 06d22ed6b6635b17551f386b50bb5aaff9b75fbe.\n\nOP-TEE logic in U-Boot automatically injects a reserved-memory\nnode along with optee firmware node to kernel device tree.\nThe injection logic is dependent on that there is no manually\ndefined optee node. Having the node in zynqmp.dtsi effectively\nbreaks OP-TEE's insertion of the reserved-memory node, causing\nmemory access violations during runtime."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"06d22ed6b6635b17551f386b50bb5aaff9b75fbe","status":"affected","lessThan":"eece81eeda10eb42c687399fb5aa69977ae15664","versionType":"git"},{"version":"06d22ed6b6635b17551f386b50bb5aaff9b75fbe","status":"affected","lessThan":"3983ef126e439900bbf419724a9759863c146660","versionType":"git"},{"version":"06d22ed6b6635b17551f386b50bb5aaff9b75fbe","status":"affected","lessThan":"2a833c730d4e8d1cc10953270ce0f3a156145d81","versionType":"git"},{"version":"06d22ed6b6635b17551f386b50bb5aaff9b75fbe","status":"affected","lessThan":"c197179990124f991fca220d97fac56779a02c6d","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/arm64/boot/dts/xilinx/zynqmp.dtsi"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.9","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/arm64/boot/dts/xilinx/zynqmp.dtsi"]}],"references":[{"url":"https://git.kernel.org/stable/c/eece81eeda10eb42c687399fb5aa69977ae15664"},{"url":"https://git.kernel.org/stable/c/3983ef126e439900bbf419724a9759863c146660"},{"url":"https://git.kernel.org/stable/c/2a833c730d4e8d1cc10953270ce0f3a156145d81"},{"url":"https://git.kernel.org/stable/c/c197179990124f991fca220d97fac56779a02c6d"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:L - An attacker with local code execution can reach the failure through ordinary memory-allocation paths and, in static shared-memory deployments, through normal TEE-device ioctls; no network or physical access is required.\nAC:L - Once the affected ZynqMP OP-TEE boot flow is present, the attacker controls memory pressure or shared-memory allocation without needing an uncontrollable race or victim state.\nPR:L - An unprivileged local process can create memory pressure through ordinary mappings, and the normal TEE client interface has no capability check where device permissions permit client access.\nUI:N - The attacker can trigger allocations and access the conflicting physical pages directly, without another user performing any action.\nS:U - The resulting corruption, privilege escalation, or denial of service affects the Linux kernel and host resources within the same security authority.\nC:H - In supported static-shared-memory configurations, the missing reservation lets Linux's buddy allocator and the OP-TEE pool own the same physical pages, allowing mapped TEE shared memory to expose sensitive kernel or process data.\nI:H - The overlapping ownership provides attacker-writable aliases to pages that Linux can use for kernel objects or other allocations, making arbitrary corruption and control-flow hijacking plausible.\nA:H - Linux may allocate secure OP-TEE pages as normal RAM, causing synchronous external aborts and kernel crashes, while shared-memory aliasing can independently produce fatal memory corruption."}]}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-05T12:12:43.409Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.18.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.19.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}