RDMA/umem: Be careful about boundary conditions in ib_umem_find_best_pgsz()
In the Linux kernel, the following vulnerability has been resolved: RDMA/umem: Be careful about boundary conditions in ib_umem_find_best_pgsz() Several corner cases, especially important on 32 bits: - umem->iova is u64, the function argument should pass in u64 or iova will be truncated - Check that the length is not too large for the iova - Check that lengths > 4G don't overflow the GENMASK
CVE-2026-97421
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-2026-97421
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": "a40c20dabdf9045270767c75918feb67f0727c89",
"lessThan": "3014da7587ce006cd08004fd6b257626b314e0a3",
"versionType": "git"
},
{
"status": "affected",
"version": "a40c20dabdf9045270767c75918feb67f0727c89",
"lessThan": "ddccf6cc3861de2fe60986933bead79220e0d797",
"versionType": "git"
},
{
"status": "affected",
"version": "a40c20dabdf9045270767c75918feb67f0727c89",
"lessThan": "e9bbb5f5349ef560ff6f0395564f04c3aa664559",
"versionType": "git"
},
{
"status": "affected",
"version": "a40c20dabdf9045270767c75918feb67f0727c89",
"lessThan": "ae3cf7d2c4d506c5c91746321644e1a08d989e2a",
"versionType": "git"
},
{
"status": "affected",
"version": "a40c20dabdf9045270767c75918feb67f0727c89",
"lessThan": "5fc5b73109540809b094710fac44da81dd8a3ff8",
"versionType": "git"
},
{
"status": "affected",
"version": "a40c20dabdf9045270767c75918feb67f0727c89",
"lessThan": "09ea6837a0434fb4db99528a5055b6d822135dcf",
"versionType": "git"
},
{
"status": "affected",
"version": "85e40ba1c4a5246b35e91c2ed69d4680426904d7",
"versionType": "git"
},
{
"status": "affected",
"version": "59f07434b297e2268f5d5c567db5b09145245cf1",
"versionType": "git"
},
{
"status": "affected",
"version": "488229b7729d7becf4c39c5e74fb709fb35115c2",
"versionType": "git"
},
{
"status": "affected",
"version": "5.4.73",
"lessThan": "5.5",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.8.17",
"lessThan": "5.9",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.9.2",
"lessThan": "5.10",
"versionType": "semver"
}
],
"programFiles": [
"drivers/infiniband/core/umem.c",
"include/rdma/ib_umem.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.10"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.10",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.222",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.189",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/infiniband/core/umem.c",
"include/rdma/ib_umem.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-97421
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #8312 · Revision 1
- Added to Heist Feed
- Publisher date