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

CVE-2026-53133
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.13 % · percentile 3 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

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.

Weaknesses (CWE)

  • CWE-190 — Integer Overflow or Wraparound
  • CWE-681 — Incorrect Conversion between Numeric Types

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected a808273a495c657e33281b181fd7fcc2bb28f662 < 2ff4b7817e5b78070c30f5fb5e678e452a2628b3 ; affected a808273a495c657e33281b181fd7fcc2bb28f662 < dee2a49adeeb2a5e16a3fc858fa21b841c519802 ; affected a808273a495c657e33281b181fd7fcc2bb28f662 < cc644d5608e3b0dadc970bd6e6aa26b91ea07d0f ; affected a808273a495c657e33281b181fd7fcc2bb28f662 < 8fe0231adebe086c8a459c790944ac026cd99c6e ; affected a808273a495c657e33281b181fd7fcc2bb28f662 < baf8685bcf56dc1efb44b8f6a57c42516e549068 ; affected a808273a495c657e33281b181fd7fcc2bb28f662 < afd35fec9297195b759078745549c2671223f24f
Linux · Linuxaffected 5.2 ; unaffected 0 < 5.2 ; unaffected 5.10.259 ≤ 5.10.* ; unaffected 5.15.210 ≤ 5.15.* ; unaffected 6.1.176 ≤ 6.1.* ; unaffected 6.6.143 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD