riscv: kvm: fix vector context allocation leak
In the Linux kernel, the following vulnerability has been resolved: riscv: kvm: fix vector context allocation leak When the second kzalloc (host_context.vector.datap) fails in kvm_riscv_vcpu_alloc_vector_context, the first allocation (guest_context.vector.datap) is leaked. Free it before returning.
CVE-2026-46171
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-2026-46171
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": "0f4b82579716b12bb88257bd7ea80f25c791fb2c",
"lessThan": "8f3a5dc4055e1001b44ca8ae2bd3eb1d07782049",
"versionType": "git"
},
{
"status": "affected",
"version": "0f4b82579716b12bb88257bd7ea80f25c791fb2c",
"lessThan": "70ecebe7c58ce01f8da3f513eafb51bd147b1e63",
"versionType": "git"
},
{
"status": "affected",
"version": "0f4b82579716b12bb88257bd7ea80f25c791fb2c",
"lessThan": "bd62c0f61bc722a097417401030c596cea8e21aa",
"versionType": "git"
},
{
"status": "affected",
"version": "0f4b82579716b12bb88257bd7ea80f25c791fb2c",
"lessThan": "1d57ab45ec5c0e22789de793bcf2a31ad6fb7d98",
"versionType": "git"
},
{
"status": "affected",
"version": "0f4b82579716b12bb88257bd7ea80f25c791fb2c",
"lessThan": "b7c958d7c1eb1cb9b2be7b5ee4129fcd66cec978",
"versionType": "git"
}
],
"programFiles": [
"arch/riscv/kvm/vcpu_vector.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.5"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.5",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.30",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.7",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"arch/riscv/kvm/vcpu_vector.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-46171
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46330 · Revision 1
- Added to Heist Feed
- Publisher date