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osvGoogleOSV:RLSA-2021:5241
HistoryDec 21, 2021 - 9:12 a.m.

Moderate: kernel-rt security and bug fix update

2021-12-2109:12:29
Google
osv.dev
7

7.2 High

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

5.1%

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)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

  • kernel-rt: update RT source tree to the Rocky Linux-8.5.z1 source tree (BZ#2023988)

  • [rt] Rocky Linux-8.6: disable KASAN, KCSAN and UBSAN for kernel-rt (BZ#2026384)