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CVE Vulnerability Details :
CVE-2026-53133
PUBLISHED
More InfoOfficial Page
Assigner-Linux
Assigner Org ID-416baaa9-dc9f-4396-8d5f-8c081fb06d67
View Known Exploited Vulnerability (KEV) details
Published At-25 Jun, 2026 | 08:38
Updated At-28 Jun, 2026 | 06:39
Rejected At-
▼CVE Numbering Authority (CNA)
RDMA/umem: Fix truncation for block sizes >= 4G

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
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • drivers/infiniband/core/iter.c
Default Status
unaffected
Versions
Affected
  • From a808273a495c657e33281b181fd7fcc2bb28f662 before 2ff4b7817e5b78070c30f5fb5e678e452a2628b3 (git)
  • From a808273a495c657e33281b181fd7fcc2bb28f662 before dee2a49adeeb2a5e16a3fc858fa21b841c519802 (git)
  • From a808273a495c657e33281b181fd7fcc2bb28f662 before cc644d5608e3b0dadc970bd6e6aa26b91ea07d0f (git)
  • From a808273a495c657e33281b181fd7fcc2bb28f662 before 8fe0231adebe086c8a459c790944ac026cd99c6e (git)
  • From a808273a495c657e33281b181fd7fcc2bb28f662 before baf8685bcf56dc1efb44b8f6a57c42516e549068 (git)
  • From a808273a495c657e33281b181fd7fcc2bb28f662 before afd35fec9297195b759078745549c2671223f24f (git)
  • From a808273a495c657e33281b181fd7fcc2bb28f662 before ac1aad8e1281534ce936c250f68084fc79c5469e (git)
  • From a808273a495c657e33281b181fd7fcc2bb28f662 before 15fe76e23615f502d051ef0768f86babaf08746c (git)
Vendor
Linux Kernel Organization, IncLinux
Product
Linux
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Program Files
  • drivers/infiniband/core/iter.c
Default Status
affected
Versions
Affected
  • 5.2
Unaffected
  • From 0 before 5.2 (semver)
  • From 5.10.259 through 5.10.* (semver)
  • From 5.15.210 through 5.15.* (semver)
  • From 6.1.176 through 6.1.* (semver)
  • From 6.6.143 through 6.6.* (semver)
  • From 6.12.94 through 6.12.* (semver)
  • From 6.18.36 through 6.18.* (semver)
  • From 7.0.13 through 7.0.* (semver)
  • From 7.1 through * (original_commit_for_fix)
Metrics
VersionBase scoreBase severityVector
3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version: 3.1
Base score: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://git.kernel.org/stable/c/2ff4b7817e5b78070c30f5fb5e678e452a2628b3
N/A
https://git.kernel.org/stable/c/dee2a49adeeb2a5e16a3fc858fa21b841c519802
N/A
https://git.kernel.org/stable/c/cc644d5608e3b0dadc970bd6e6aa26b91ea07d0f
N/A
https://git.kernel.org/stable/c/8fe0231adebe086c8a459c790944ac026cd99c6e
N/A
https://git.kernel.org/stable/c/baf8685bcf56dc1efb44b8f6a57c42516e549068
N/A
https://git.kernel.org/stable/c/afd35fec9297195b759078745549c2671223f24f
N/A
https://git.kernel.org/stable/c/ac1aad8e1281534ce936c250f68084fc79c5469e
N/A
https://git.kernel.org/stable/c/15fe76e23615f502d051ef0768f86babaf08746c
N/A
Hyperlink: https://git.kernel.org/stable/c/2ff4b7817e5b78070c30f5fb5e678e452a2628b3
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/dee2a49adeeb2a5e16a3fc858fa21b841c519802
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/cc644d5608e3b0dadc970bd6e6aa26b91ea07d0f
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/8fe0231adebe086c8a459c790944ac026cd99c6e
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/baf8685bcf56dc1efb44b8f6a57c42516e549068
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/afd35fec9297195b759078745549c2671223f24f
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/ac1aad8e1281534ce936c250f68084fc79c5469e
Resource: N/A
Hyperlink: https://git.kernel.org/stable/c/15fe76e23615f502d051ef0768f86babaf08746c
Resource: N/A
Details not found