Vulnerability details
CVE-2023-53205
Linux Linux
KVM: s390/diag: fix racy access of physical cpu number in diag 9c handler
CVSS 3.1
7.3High
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.3High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 5.13 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 87e28a15c42cc592009c32a8c20e5789059027c2 ≤ v < a9ccf140a2a03a0ae82be4bdfbdd17bdaea72ff5 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 87e28a15c42cc592009c32a8c20e5789059027c2 ≤ v < 86bfb18bad60fc468e5f112cbbd918462a8dd435 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 87e28a15c42cc592009c32a8c20e5789059027c2 ≤ v < dc7e0192c470a53d847c79a2796f9ac429477a26 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 87e28a15c42cc592009c32a8c20e5789059027c2 ≤ v < 0bc380beb78aa352eadbc21d934dd9606fcee808 | CVEProject cvelistV5 (CNA) |
References and advisories
4
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Details
- Published
- 2025-09-15
- Last updated
- 2026-10-16
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.17%
Probability of exploitation in 30 days
6.3%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- —