RHSA-2024:10944 - Security Advisory

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

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: selinux,smack: don't bypass permissions check in inode_setsecctx hook (CVE-2024-46695)
• kernel: net: avoid potential underflow in qdisc_pkt_len_init() with UFO (CVE-2024-49949)
• kernel: blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race (CVE-2024-50082)
• kernel: arm64: probes: Remove broken LDR (literal) uprobe support (CVE-2024-50099)
• kernel: xfrm: fix one more kernel-infoleak in algo dumping (CVE-2024-50110)
• kernel: xfrm: validate new SA's prefixlen using SA family when sel.family is unset (CVE-2024-50142)
• kernel: irqchip/gic-v4: Don't allow a VMOVP on a dying VPE (CVE-2024-50192)
• kernel: netfilter: nf_reject_ipv6: fix potential crash in nf_send_reset6() (CVE-2024-50256)
• kernel: vsock/virtio: Initialization of the dangling pointer occurring in vsk->trans (CVE-2024-50264)

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.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

Affected Products

• Red Hat Enterprise Linux for Real Time 8 x86_64
• Red Hat Enterprise Linux for Real Time for NFV 8 x86_64

Fixes

• BZ - 2312083 - CVE-2024-46695 kernel: selinux,smack: don't bypass permissions check in inode_setsecctx hook
• BZ - 2320505 - CVE-2024-49949 kernel: net: avoid potential underflow in qdisc_pkt_len_init() with UFO
• BZ - 2322308 - CVE-2024-50082 kernel: blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race
• BZ - 2323904 - CVE-2024-50099 kernel: arm64: probes: Remove broken LDR (literal) uprobe support
• BZ - 2323930 - CVE-2024-50110 kernel: xfrm: fix one more kernel-infoleak in algo dumping
• BZ - 2324315 - CVE-2024-50142 kernel: xfrm: validate new SA's prefixlen using SA family when sel.family is unset
• BZ - 2324612 - CVE-2024-50192 kernel: irqchip/gic-v4: Don't allow a VMOVP on a dying VPE
• BZ - 2324889 - CVE-2024-50256 kernel: netfilter: nf_reject_ipv6: fix potential crash in nf_send_reset6()
• BZ - 2327168 - CVE-2024-50264 kernel: vsock/virtio: Initialization of the dangling pointer occurring in vsk->trans

CVEs

• CVE-2024-46695
• CVE-2024-49949
• CVE-2024-50082
• CVE-2024-50099
• CVE-2024-50110
• CVE-2024-50142
• CVE-2024-50192
• CVE-2024-50256
• CVE-2024-50264

References

• https://access.redhat.com/security/updates/classification/#moderate