{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53133","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-06-09T07:44:35.386Z","datePublished":"2026-06-25T08:38:22.469Z","dateUpdated":"2026-06-28T06:39:28.012Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-28T06:39:28.012Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/umem: Fix truncation for block sizes >= 4G\n\nWhen the iommu is used the linearization of the mapping can give a single\nblock that is very large split across multiple SG entries.\n\nWhen __rdma_block_iter_next() reassembles the split SG entries it is\noverflowing the 32 bit stack values and computed the wrong DMA addresses\nfor blocks after the truncation.\n\nUse the right types to hold DMA addresses."}],"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"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/infiniband/core/iter.c"],"versions":[{"version":"a808273a495c657e33281b181fd7fcc2bb28f662","lessThan":"2ff4b7817e5b78070c30f5fb5e678e452a2628b3","status":"affected","versionType":"git"},{"version":"a808273a495c657e33281b181fd7fcc2bb28f662","lessThan":"dee2a49adeeb2a5e16a3fc858fa21b841c519802","status":"affected","versionType":"git"},{"version":"a808273a495c657e33281b181fd7fcc2bb28f662","lessThan":"cc644d5608e3b0dadc970bd6e6aa26b91ea07d0f","status":"affected","versionType":"git"},{"version":"a808273a495c657e33281b181fd7fcc2bb28f662","lessThan":"8fe0231adebe086c8a459c790944ac026cd99c6e","status":"affected","versionType":"git"},{"version":"a808273a495c657e33281b181fd7fcc2bb28f662","lessThan":"baf8685bcf56dc1efb44b8f6a57c42516e549068","status":"affected","versionType":"git"},{"version":"a808273a495c657e33281b181fd7fcc2bb28f662","lessThan":"afd35fec9297195b759078745549c2671223f24f","status":"affected","versionType":"git"},{"version":"a808273a495c657e33281b181fd7fcc2bb28f662","lessThan":"ac1aad8e1281534ce936c250f68084fc79c5469e","status":"affected","versionType":"git"},{"version":"a808273a495c657e33281b181fd7fcc2bb28f662","lessThan":"15fe76e23615f502d051ef0768f86babaf08746c","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/infiniband/core/iter.c"],"versions":[{"version":"5.2","status":"affected"},{"version":"0","lessThan":"5.2","status":"unaffected","versionType":"semver"},{"version":"5.10.259","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.210","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.176","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.143","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.94","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.36","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.13","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":"5.2","versionEndExcluding":"5.10.259"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.15.210"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.1.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.6.143"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.12.94"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.18.36"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"7.0.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/2ff4b7817e5b78070c30f5fb5e678e452a2628b3"},{"url":"https://git.kernel.org/stable/c/dee2a49adeeb2a5e16a3fc858fa21b841c519802"},{"url":"https://git.kernel.org/stable/c/cc644d5608e3b0dadc970bd6e6aa26b91ea07d0f"},{"url":"https://git.kernel.org/stable/c/8fe0231adebe086c8a459c790944ac026cd99c6e"},{"url":"https://git.kernel.org/stable/c/baf8685bcf56dc1efb44b8f6a57c42516e549068"},{"url":"https://git.kernel.org/stable/c/afd35fec9297195b759078745549c2671223f24f"},{"url":"https://git.kernel.org/stable/c/ac1aad8e1281534ce936c250f68084fc79c5469e"},{"url":"https://git.kernel.org/stable/c/15fe76e23615f502d051ef0768f86babaf08746c"}],"title":"RDMA/umem: Fix truncation for block sizes >= 4G","x_generator":{"engine":"bippy-1.2.0"}}}}