Skip to content
CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-53133

RDMA/umem: Fix truncation for block sizes >= 4G

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • a808273a495c657e33281b181fd7fcc2bb28f662 to < 2ff4b7817e5b78070c30f5fb5e678e452a2628b3affected
  • a808273a495c657e33281b181fd7fcc2bb28f662 to < dee2a49adeeb2a5e16a3fc858fa21b841c519802affected
  • a808273a495c657e33281b181fd7fcc2bb28f662 to < cc644d5608e3b0dadc970bd6e6aa26b91ea07d0faffected
  • a808273a495c657e33281b181fd7fcc2bb28f662 to < 8fe0231adebe086c8a459c790944ac026cd99c6eaffected
  • a808273a495c657e33281b181fd7fcc2bb28f662 to < baf8685bcf56dc1efb44b8f6a57c42516e549068affected
  • a808273a495c657e33281b181fd7fcc2bb28f662 to < afd35fec9297195b759078745549c2671223f24faffected
  • a808273a495c657e33281b181fd7fcc2bb28f662 to < ac1aad8e1281534ce936c250f68084fc79c5469eaffected
  • a808273a495c657e33281b181fd7fcc2bb28f662 to < 15fe76e23615f502d051ef0768f86babaf08746caffected

Linux Linux

Default version status: affected

  • 5.2affected
  • 0 to < 5.2unaffected
  • 5.10.259 to ≤ 5.10.*unaffected
  • 5.15.210 to ≤ 5.15.*unaffected
  • 6.1.176 to ≤ 6.1.*unaffected
  • 6.6.143 to ≤ 6.6.*unaffected
  • 6.12.94 to ≤ 6.12.*unaffected
  • 6.18.36 to ≤ 6.18.*unaffected
  • 7.0.13 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References