CVE-2021-20321

2022-02-1817:50:44

CWE-362

redhat

www.cve.org

cve-2021-20321

file object access

linux kernel

overlayfs

race condition

system crash

AI Score

Confidence

High

EPSS

Percentile

5.1%

JSON

A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific way with OverlayFS. A local user could use this flaw to crash the system.

CNA Affected

[
  {
    "product": "kernel",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "kernel 5.15-rc5"
      }
    ]
  }
]