CVE-2026-53133 (GCVE-0-2026-53133)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:38 – Updated: 2026-06-28 06:39
VLAI
Title
RDMA/umem: Fix truncation for block sizes >= 4G
Summary
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: a808273a495c657e33281b181fd7fcc2bb28f662 , < 2ff4b7817e5b78070c30f5fb5e678e452a2628b3 (git)
Affected: a808273a495c657e33281b181fd7fcc2bb28f662 , < dee2a49adeeb2a5e16a3fc858fa21b841c519802 (git)
Affected: a808273a495c657e33281b181fd7fcc2bb28f662 , < cc644d5608e3b0dadc970bd6e6aa26b91ea07d0f (git)
Affected: a808273a495c657e33281b181fd7fcc2bb28f662 , < 8fe0231adebe086c8a459c790944ac026cd99c6e (git)
Affected: a808273a495c657e33281b181fd7fcc2bb28f662 , < baf8685bcf56dc1efb44b8f6a57c42516e549068 (git)
Affected: a808273a495c657e33281b181fd7fcc2bb28f662 , < afd35fec9297195b759078745549c2671223f24f (git)
Affected: a808273a495c657e33281b181fd7fcc2bb28f662 , < ac1aad8e1281534ce936c250f68084fc79c5469e (git)
Affected: a808273a495c657e33281b181fd7fcc2bb28f662 , < 15fe76e23615f502d051ef0768f86babaf08746c (git)
Create a notification for this product.
Linux Linux Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 5.10.259 , ≤ 5.10.* (semver)
Unaffected: 5.15.210 , ≤ 5.15.* (semver)
Unaffected: 6.1.176 , ≤ 6.1.* (semver)
Unaffected: 6.6.143 , ≤ 6.6.* (semver)
Unaffected: 6.12.94 , ≤ 6.12.* (semver)
Unaffected: 6.18.36 , ≤ 6.18.* (semver)
Unaffected: 7.0.13 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.