Important: kernel-rt security and bug fix update

2023-08-0812:34:53

Google

osv.dev

kernel-rt packages

real time linux kernel

security fix

bug fix

cve

rocky linux9 rt

source tree

fifo tasks

cvss score

acknowledgments

race condition

out-of-bounds write

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.3 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

19.2%

JSON

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: ipvlan: out-of-bounds write caused by unclear skb->cb (CVE-2023-3090)
kernel: cls_flower: out-of-bounds write in fl_set_geneve_opt() (CVE-2023-35788)
kernel: KVM: x86/mmu: race condition in direct_page_fault() (CVE-2022-45869)
kernel: speculative pointer dereference in do_prlimit() in kernel/sys.c (CVE-2023-0458)
kernel: Spectre v2 SMT mitigations problem (CVE-2023-1998)

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):

Rocky Linux9 rt: blktests block/024 failed (BZ#2209920)
Backport pinned timers RT specific behavior for FIFO tasks (BZ#2210071)
kernel-rt: update RT source tree to the Rocky Linux-9.2z2 source tree (BZ#2215122)
kernel-rt: update RT source tree to the Rocky Linux-9.2z2b source tree (BZ#2222796)