QID 239979

Date Published: 2021-12-22

QID 239979: Red Hat Update for kernel-rt (RHSA-2021:5241)

the kernel-rt packages provide the real time linux kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):
  • kernel: in overlayfs missing a check for a negative dentry before calling vfs_rename() (cve-2021-20321)

Affected Products:

  • Red Hat enterprise linux for real time 8 x86_64
  • Red Hat enterprise linux for real time for nfv 8 x86_64



Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation of this vulnerability could lead to a security breach or could affect integrity, availability, and confidentiality.

  • CVSS V3 rated as Medium - 4.2 severity.
  • CVSS V2 rated as Medium - 5.4 severity.
    • Solution
    Refer to Red Hat security advisory RHSA-2021:5241 for updates and patch information.
    Vendor References

    CVEs related to QID 239979

    CVE-2021-20321 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:5241 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:5241
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