RHSA-2022:0176: Important: kernel-rt security and bug fix update
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: xfs: raw block device data leak in XFSIOCALLOCSP IOCTL (CVE-2021-4155) kernel: fscontext: heap overflow in legacy parameter handling (CVE-2022-0185) 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): kernnel-rt-debug: do not call blocking ops when !TASKRUNNING; state=1 set at [<0000000050e86018>] handleuserfault+0x530/0x1820 (BZ#2029422) kernel-rt: update RT source tree to the RHEL-8.5.z source tree (BZ#2032059)
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2022:0176?
The severity of RHSA-2022:0176 is categorized as important due to the potential data leak risk.
How do I fix RHSA-2022:0176?
To fix RHSA-2022:0176, update the kernel-rt packages to version 4.18.0-348.12.2.rt7.143.el8_5 or higher.
What vulnerability is addressed in RHSA-2022:0176?
RHSA-2022:0176 addresses a vulnerability in the xfs file system, specifically a data leak in the XFS_IOC_ALLOCSP IOCTL, identified as CVE-2021-4155.
Which packages are affected by RHSA-2022:0176?
RHSA-2022:0176 affects multiple kernel-rt packages including kernel-rt, kernel-rt-core, and kernel-rt-debug among others.
Is RHSA-2022:0176 critical for my system's security?
Yes, applying the fix for RHSA-2022:0176 is critical as it mitigates an important vulnerability that could lead to unauthorized data exposure.