CVE-2026-53133 | BDVDB-2026-343152 Detail
LinuxLinux
Description#
In the Linux kernel, the following vulnerability has been resolved: RDMA/umem: Fix truncation for block sizes >= 4G When the iommu is used the linearization of the mapping can give a single block that is very large split across multiple SG entries. When __rdma_block_iter_next() reassembles the split SG entries it is overflowing the 32 bit stack values and computed the wrong DMA addresses for blocks after the truncation. Use the right types to hold DMA addresses.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.
Weaknesses#
- CWE-190 Integer Overflow or Wraparound
References#
- https://git.kernel.org/stable/c/2ff4b7817e5b78070c30f5fb5e678e452a2628b3
- https://git.kernel.org/stable/c/dee2a49adeeb2a5e16a3fc858fa21b841c519802
- https://git.kernel.org/stable/c/cc644d5608e3b0dadc970bd6e6aa26b91ea07d0f
- https://git.kernel.org/stable/c/8fe0231adebe086c8a459c790944ac026cd99c6e
- https://git.kernel.org/stable/c/baf8685bcf56dc1efb44b8f6a57c42516e549068
- https://git.kernel.org/stable/c/afd35fec9297195b759078745549c2671223f24f
- https://git.kernel.org/stable/c/ac1aad8e1281534ce936c250f68084fc79c5469e
- https://git.kernel.org/stable/c/15fe76e23615f502d051ef0768f86babaf08746c
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.