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redhatRedHatRHSA-2022:7134
HistoryOct 25, 2022 - 7:38 a.m.

(RHSA-2022:7134) Important: kernel-rt security and bug fix update

2022-10-2507:38:43
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26

0.001 Low

EPSS

Percentile

30.8%

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: a use-after-free in cls_route filter implementation may lead to privilege escalation (CVE-2022-2588)

  • kernel: information leak in scsi_ioctl() (CVE-2022-0494)

  • Kernel: A kernel-info-leak issue in pfkey_register (CVE-2022-1353)

  • hw: cpu: AMD: RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-23816, CVE-2022-29900)

  • hw: cpu: AMD: Branch Type Confusion (non-retbleed) (CVE-2022-23825)

  • hw: cpu: Intel: RetBleed Arbitrary Speculative Code Execution with Return Instructions (CVE-2022-29901)

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):

  • [rhel8-rt] BUG: using __this_cpu_add() in preemptible [00000000] - caller is __mod_memcg_lruvec_state+0x69/0x1c0 (BZ#2122600)

  • The latest RHEL 8.6.z4 kernel changes need to be merged into the RT source tree to keep source parity between the two kernels. (BZ#2125396)