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.
CVE-2026-53133
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-53133
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "a808273a495c657e33281b181fd7fcc2bb28f662",
"lessThan": "2ff4b7817e5b78070c30f5fb5e678e452a2628b3",
"versionType": "git"
},
{
"status": "affected",
"version": "a808273a495c657e33281b181fd7fcc2bb28f662",
"lessThan": "dee2a49adeeb2a5e16a3fc858fa21b841c519802",
"versionType": "git"
},
{
"status": "affected",
"version": "a808273a495c657e33281b181fd7fcc2bb28f662",
"lessThan": "cc644d5608e3b0dadc970bd6e6aa26b91ea07d0f",
"versionType": "git"
},
{
"status": "affected",
"version": "a808273a495c657e33281b181fd7fcc2bb28f662",
"lessThan": "8fe0231adebe086c8a459c790944ac026cd99c6e",
"versionType": "git"
},
{
"status": "affected",
"version": "a808273a495c657e33281b181fd7fcc2bb28f662",
"lessThan": "baf8685bcf56dc1efb44b8f6a57c42516e549068",
"versionType": "git"
},
{
"status": "affected",
"version": "a808273a495c657e33281b181fd7fcc2bb28f662",
"lessThan": "afd35fec9297195b759078745549c2671223f24f",
"versionType": "git"
},
{
"status": "affected",
"version": "a808273a495c657e33281b181fd7fcc2bb28f662",
"lessThan": "ac1aad8e1281534ce936c250f68084fc79c5469e",
"versionType": "git"
},
{
"status": "affected",
"version": "a808273a495c657e33281b181fd7fcc2bb28f662",
"lessThan": "15fe76e23615f502d051ef0768f86babaf08746c",
"versionType": "git"
}
],
"programFiles": [
"drivers/infiniband/core/iter.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.259",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.210",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.176",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.143",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.94",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.36",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.13",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/infiniband/core/iter.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-53133
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #40757 · Revision 1
- Added to Heist Feed
- Publisher date