KVM: s390/diag: fix racy access of physical cpu number in diag 9c handler
In the Linux kernel, the following vulnerability has been resolved: KVM: s390/diag: fix racy access of physical cpu number in diag 9c handler We do check for target CPU == -1, but this might change at the time we are going to use it. Hold the physical target CPU in a local variable to avoid out-of-bound accesses to the cpu arrays.
CVE-2023-53205
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-2023-53205
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": "87e28a15c42cc592009c32a8c20e5789059027c2",
"lessThan": "a9ccf140a2a03a0ae82be4bdfbdd17bdaea72ff5",
"versionType": "git"
},
{
"status": "affected",
"version": "87e28a15c42cc592009c32a8c20e5789059027c2",
"lessThan": "86bfb18bad60fc468e5f112cbbd918462a8dd435",
"versionType": "git"
},
{
"status": "affected",
"version": "87e28a15c42cc592009c32a8c20e5789059027c2",
"lessThan": "dc7e0192c470a53d847c79a2796f9ac429477a26",
"versionType": "git"
},
{
"status": "affected",
"version": "87e28a15c42cc592009c32a8c20e5789059027c2",
"lessThan": "0bc380beb78aa352eadbc21d934dd9606fcee808",
"versionType": "git"
}
],
"programFiles": [
"arch/s390/kvm/diag.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.13"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.13",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.121",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.39",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.4.4",
"versionType": "semver",
"lessThanOrEqual": "6.4.*"
},
{
"status": "unaffected",
"version": "6.5",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"arch/s390/kvm/diag.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2023-53205
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30265 · Revision 1
- Added to Heist Feed
- Publisher date