{"id":"CVE-2026-53133","summary":"RDMA/umem: Fix truncation for block sizes \u003e= 4G","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/umem: Fix truncation for block sizes \u003e= 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.","modified":"2026-09-14T18:26:57.794982272Z","published":"2026-06-25T08:38:22.469Z","related":["SUSE-SU-2026:22521-1","SUSE-SU-2026:22522-1","SUSE-SU-2026:22665-1","SUSE-SU-2026:22666-1","SUSE-SU-2026:22742-1","SUSE-SU-2026:22769-1","SUSE-SU-2026:22812-1","SUSE-SU-2026:22835-1","SUSE-SU-2026:23258-1","SUSE-SU-2026:23259-1","SUSE-SU-2026:23260-1","SUSE-SU-2026:23261-1","SUSE-SU-2026:23262-1","SUSE-SU-2026:23263-1","SUSE-SU-2026:23264-1","SUSE-SU-2026:23265-1","SUSE-SU-2026:23266-1","SUSE-SU-2026:23267-1","SUSE-SU-2026:23268-1","SUSE-SU-2026:23269-1","SUSE-SU-2026:23270-1","SUSE-SU-2026:23271-1","SUSE-SU-2026:23272-1","SUSE-SU-2026:23280-1","SUSE-SU-2026:23281-1","SUSE-SU-2026:23282-1","SUSE-SU-2026:23283-1","SUSE-SU-2026:23284-1","SUSE-SU-2026:23285-1","SUSE-SU-2026:23286-1","SUSE-SU-2026:23287-1","SUSE-SU-2026:23288-1","SUSE-SU-2026:23290-1","SUSE-SU-2026:23291-1","SUSE-SU-2026:23292-1","SUSE-SU-2026:23293-1","SUSE-SU-2026:23295-1","SUSE-SU-2026:23296-1","SUSE-SU-2026:23329-1","SUSE-SU-2026:23330-1","SUSE-SU-2026:23331-1","SUSE-SU-2026:23332-1","SUSE-SU-2026:23333-1","SUSE-SU-2026:23334-1","SUSE-SU-2026:23335-1","SUSE-SU-2026:23336-1","SUSE-SU-2026:23337-1","SUSE-SU-2026:23338-1","SUSE-SU-2026:23339-1","SUSE-SU-2026:23340-1","SUSE-SU-2026:23341-1","SUSE-SU-2026:23342-1","SUSE-SU-2026:23343-1","SUSE-SU-2026:23366-1","SUSE-SU-2026:23367-1","SUSE-SU-2026:23368-1","SUSE-SU-2026:23369-1","SUSE-SU-2026:23370-1","SUSE-SU-2026:23371-1","SUSE-SU-2026:23372-1","SUSE-SU-2026:23373-1","SUSE-SU-2026:23374-1","SUSE-SU-2026:23375-1","SUSE-SU-2026:23376-1","SUSE-SU-2026:23377-1","SUSE-SU-2026:23378-1","SUSE-SU-2026:23379-1","SUSE-SU-2026:23380-1","SUSE-SU-2026:23383-1","SUSE-SU-2026:23384-1","SUSE-SU-2026:23385-1","SUSE-SU-2026:23386-1","SUSE-SU-2026:23387-1","SUSE-SU-2026:23388-1","SUSE-SU-2026:23389-1","SUSE-SU-2026:23390-1","SUSE-SU-2026:23416-1","SUSE-SU-2026:23417-1","SUSE-SU-2026:23418-1","SUSE-SU-2026:23419-1","SUSE-SU-2026:23420-1","SUSE-SU-2026:23421-1","SUSE-SU-2026:23422-1","SUSE-SU-2026:23423-1","SUSE-SU-2026:23424-1","SUSE-SU-2026:23425-1","SUSE-SU-2026:23426-1","SUSE-SU-2026:23427-1","SUSE-SU-2026:23428-1","SUSE-SU-2026:23429-1","SUSE-SU-2026:23430-1","SUSE-SU-2026:23431-1","SUSE-SU-2026:23432-1","SUSE-SU-2026:23433-1","SUSE-SU-2026:23434-1","SUSE-SU-2026:23435-1","SUSE-SU-2026:23436-1","SUSE-SU-2026:23437-1","SUSE-SU-2026:23438-1","SUSE-SU-2026:23482-1","SUSE-SU-2026:23483-1","SUSE-SU-2026:23484-1","SUSE-SU-2026:23485-1","SUSE-SU-2026:23486-1","SUSE-SU-2026:23487-1","SUSE-SU-2026:2799-1","SUSE-SU-2026:2800-1","SUSE-SU-2026:2840-1","SUSE-SU-2026:2841-1","SUSE-SU-2026:3044-1","SUSE-SU-2026:3089-1","SUSE-SU-2026:3156-1","SUSE-SU-2026:3689-1","SUSE-SU-2026:3694-1","SUSE-SU-2026:3696-1","SUSE-SU-2026:3697-1","SUSE-SU-2026:3698-1","SUSE-SU-2026:3699-1","SUSE-SU-2026:3700-1","SUSE-SU-2026:3702-1","SUSE-SU-2026:3703-1","SUSE-SU-2026:3704-1","SUSE-SU-2026:3707-1","SUSE-SU-2026:3708-1","SUSE-SU-2026:3709-1","SUSE-SU-2026:3710-1","SUSE-SU-2026:3715-1","SUSE-SU-2026:3717-1","SUSE-SU-2026:3719-1","SUSE-SU-2026:3721-1","SUSE-SU-2026:3722-1","SUSE-SU-2026:3724-1","SUSE-SU-2026:3726-1","SUSE-SU-2026:3728-1","SUSE-SU-2026:3729-1","SUSE-SU-2026:3734-1","SUSE-SU-2026:3739-1","SUSE-SU-2026:3744-1","SUSE-SU-2026:3746-1","SUSE-SU-2026:3747-1","SUSE-SU-2026:3748-1","SUSE-SU-2026:3750-1","SUSE-SU-2026:3754-1","SUSE-SU-2026:3756-1","SUSE-SU-2026:3757-1","SUSE-SU-2026:3759-1","SUSE-SU-2026:3760-1","SUSE-SU-2026:3761-1","SUSE-SU-2026:3766-1","SUSE-SU-2026:3768-1","SUSE-SU-2026:3770-1","SUSE-SU-2026:3771-1","SUSE-SU-2026:3774-1","SUSE-SU-2026:3775-1","SUSE-SU-2026:3776-1","SUSE-SU-2026:3777-1","SUSE-SU-2026:3778-1","SUSE-SU-2026:3779-1","SUSE-SU-2026:3780-1","openSUSE-SU-2026:21388-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53133.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/15fe76e23615f502d051ef0768f86babaf08746c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2ff4b7817e5b78070c30f5fb5e678e452a2628b3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8fe0231adebe086c8a459c790944ac026cd99c6e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ac1aad8e1281534ce936c250f68084fc79c5469e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/afd35fec9297195b759078745549c2671223f24f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/baf8685bcf56dc1efb44b8f6a57c42516e549068"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cc644d5608e3b0dadc970bd6e6aa26b91ea07d0f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dee2a49adeeb2a5e16a3fc858fa21b841c519802"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53133.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53133"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":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