{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-53045", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.381Z", "datePublished": "2026-06-24T16:29:51.795Z", "dateUpdated": "2026-08-05T12:32:52.914Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:32:52.914Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmemory: tegra124-emc: Fix dll_change check\n\nThe code checking whether the specified memory timing enables DLL\nin the EMRS register was reversed. DLL is enabled if bit A0 is low.\nFix the check." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL" }, "scenarios": [ { "lang": "en", "value": "AV:N - On networked Tegra124 devices, unauthenticated remote traffic can induce memory/CPU load that drives ACTMON/devfreq EMC rate transitions into the vulnerable timing-change path.\nAC:L - Once running on an affected Tegra124 DDR3 configuration with timings that cross the DLL enable boundary, the attacker only needs to induce rate changes; there is no race or hard-to-control memory layout requirement.\nPR:N - The remote-load ACTMON/devfreq path has no authentication or privilege check before the vulnerable EMC clock transition is reached.\nUI:N - No victim action is required; rate changes are performed automatically by kernel power-management code in response to load.\nS:U - The impact remains within the same kernel-controlled system and does not cross a hypervisor, IOMMU, or separate security-authority boundary.\nC:H - The reversed DLL transition handling can misprogram DDR3 timing/state during EMC clock changes, creating system-wide DRAM corruption that may expose arbitrary kernel or process memory.\nI:H - Incorrect DRAM DLL sequencing can corrupt arbitrary memory contents, including kernel data or page tables, making high integrity impact defensible.\nA:H - Bad memory-controller timing during live DRAM operation can hang, panic, or otherwise crash the system." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/memory/tegra/tegra124-emc.c" ], "versions": [ { "version": "73a7f0a90641b09300d47308682b674c570dd6a2", "lessThan": "a85967331144fde9300be38bb44d2558eb6b742e", "status": "affected", "versionType": "git" }, { "version": "73a7f0a90641b09300d47308682b674c570dd6a2", "lessThan": "db0ae80865b515cc0b705c85877ec00f7eebe9fe", "status": "affected", "versionType": "git" }, { "version": "73a7f0a90641b09300d47308682b674c570dd6a2", "lessThan": "2369b1831161356e1bcb51385d3e532dc4fe2771", "status": "affected", "versionType": "git" }, { "version": "73a7f0a90641b09300d47308682b674c570dd6a2", "lessThan": "7e19e72f306484996c52ff96cc92f69b78ed5435", "status": "affected", "versionType": "git" }, { "version": "73a7f0a90641b09300d47308682b674c570dd6a2", "lessThan": "05f138fc7e27ee8e7a83ccf966c3fa26cda44dda", "status": "affected", "versionType": "git" }, { "version": "73a7f0a90641b09300d47308682b674c570dd6a2", "lessThan": "1793249c067a4b28e1aba0ad0e4d73aa9f9e165a", "status": "affected", "versionType": "git" }, { "version": "73a7f0a90641b09300d47308682b674c570dd6a2", "lessThan": "1ebbbef47d11cc90219c081492ccf995aaa3e9b3", "status": "affected", "versionType": "git" }, { "version": "73a7f0a90641b09300d47308682b674c570dd6a2", "lessThan": "9597ab9a8296ab337e6820f8a717ff621078b632", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/memory/tegra/tegra124-emc.c" ], "versions": [ { "version": "4.2", "status": "affected" }, { "version": "0", "lessThan": "4.2", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.258", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.141", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.91", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.33", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.10.258" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.15.209" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.1.175" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.6.141" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.12.91" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.18.33" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "7.0.10" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "7.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/a85967331144fde9300be38bb44d2558eb6b742e" }, { "url": "https://git.kernel.org/stable/c/db0ae80865b515cc0b705c85877ec00f7eebe9fe" }, { "url": "https://git.kernel.org/stable/c/2369b1831161356e1bcb51385d3e532dc4fe2771" }, { "url": "https://git.kernel.org/stable/c/7e19e72f306484996c52ff96cc92f69b78ed5435" }, { "url": "https://git.kernel.org/stable/c/05f138fc7e27ee8e7a83ccf966c3fa26cda44dda" }, { "url": "https://git.kernel.org/stable/c/1793249c067a4b28e1aba0ad0e4d73aa9f9e165a" }, { "url": "https://git.kernel.org/stable/c/1ebbbef47d11cc90219c081492ccf995aaa3e9b3" }, { "url": "https://git.kernel.org/stable/c/9597ab9a8296ab337e6820f8a717ff621078b632" } ], "title": "memory: tegra124-emc: Fix dll_change check", "x_generator": { "engine": "bippy-1.2.0" } } } }