RHSA-2024:5067 - Security Advisory

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 Extended Update Support.

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: block: null pointer dereference in ioctl.c when length and logical block size are misaligned (CVE-2023-52458)
• kernel: ext4: regenerate buddy after block freeing failed if under fc replay (CVE-2024-26601)
• kernel: PM / devfreq: Synchronize devfreq_monitor_[start/stop] (CVE-2023-52635)
• kernel: bpf: Fix racing between bpf_timer_cancel_and_free and bpf_timer_cancel (CVE-2024-26737)
• kernel: bnxt: prevent skb UAF after handing over to PTP worker (CVE-2022-48637)
• kernel: ARM: 9359/1: flush: check if the folio is reserved for no-mapping addresses (CVE-2024-26947)
• kernel: scsi: qla2xxx: Fix double free of the ha->vp_map pointer (CVE-2024-26930)
• kernel: nouveau: lock the client object tree. (CVE-2024-27062)
• kernel: octeontx2-af: Use separate handlers for interrupts (CVE-2024-27030)
• kernel: vt: fix unicode buffer corruption when deleting characters (CVE-2024-35823)
• kernel: netfilter: validate user input for expected length (CVE-2024-35896)
• kernel: mlxbf_gige: stop interface during shutdown (CVE-2024-35885)
• kernel: netfilter: complete validation of user input (CVE-2024-35962)
• kernel: scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup() (CVE-2023-52809)
• kernel: i40e: fix vf may be used uninitialized in this function warning (CVE-2024-36020)
• kernel: rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation (CVE-2024-36017)
• kernel: net: core: reject skb_copy(_expand) for fraglist GSO skbs (CVE-2024-36929)
• kernel: drm/vmwgfx: Fix invalid reads in fence signaled events (CVE-2024-36960)
• kernel: ipvlan: Dont Use skb->sk in ipvlan_process_v{4,6}_outbound (CVE-2024-33621)
• kernel: blk-cgroup: fix list corruption from reorder of WRITE ->lqueued (CVE-2024-38384)
• kernel: blk-cgroup: fix list corruption from resetting io stat (CVE-2024-38663)
• kernel: SUNRPC: Fix UAF in svc_tcp_listen_data_ready() (CVE-2023-52885)

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

Affected Products

• Red Hat Enterprise Linux for Real Time for x86_64 - 4 years of updates 9.2 x86_64
• Red Hat Enterprise Linux for Real Time for NFV for x86_64 - 4 years of updates 9.2 x86_64

Fixes

• BZ - 2265794 - CVE-2023-52458 kernel: block: null pointer dereference in ioctl.c when length and logical block size are misaligned
• BZ - 2265836 - CVE-2024-26601 kernel: ext4: regenerate buddy after block freeing failed if under fc replay
• BZ - 2272808 - CVE-2023-52635 kernel: PM / devfreq: Synchronize devfreq_monitor_[start/stop]
• BZ - 2273274 - CVE-2024-26737 kernel: bpf: Fix racing between bpf_timer_cancel_and_free and bpf_timer_cancel
• BZ - 2277831 - CVE-2022-48637 kernel: bnxt: prevent skb UAF after handing over to PTP worker
• BZ - 2278167 - CVE-2024-26947 kernel: ARM: 9359/1: flush: check if the folio is reserved for no-mapping addresses
• BZ - 2278248 - CVE-2024-26930 kernel: scsi: qla2xxx: Fix double free of the ha->vp_map pointer
• BZ - 2278387 - CVE-2024-27062 kernel: nouveau: lock the client object tree.
• BZ - 2278473 - CVE-2024-27030 kernel: octeontx2-af: Use separate handlers for interrupts
• BZ - 2281190 - CVE-2024-35823 kernel: vt: fix unicode buffer corruption when deleting characters
• BZ - 2281675 - CVE-2024-35896 kernel: netfilter: validate user input for expected length
• BZ - 2281700 - CVE-2024-35885 kernel: mlxbf_gige: stop interface during shutdown
• BZ - 2281916 - CVE-2024-35962 kernel: netfilter: complete validation of user input
• BZ - 2282669 - CVE-2023-52809 kernel: scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup()
• BZ - 2284400 - CVE-2024-36020 kernel: i40e: fix vf may be used uninitialized in this function warning
• BZ - 2284417 - CVE-2024-36017 kernel: rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation
• BZ - 2284496 - CVE-2024-36929 kernel: net: core: reject skb_copy(_expand) for fraglist GSO skbs
• BZ - 2290408 - CVE-2024-36960 kernel: drm/vmwgfx: Fix invalid reads in fence signaled events
• BZ - 2293657 - CVE-2024-33621 kernel: ipvlan: Dont Use skb->sk in ipvlan_process_v{4,6}_outbound
• BZ - 2294220 - CVE-2024-38384 kernel: blk-cgroup: fix list corruption from reorder of WRITE ->lqueued
• BZ - 2294225 - CVE-2024-38663 kernel: blk-cgroup: fix list corruption from resetting io stat
• BZ - 2297730 - CVE-2023-52885 kernel: SUNRPC: Fix UAF in svc_tcp_listen_data_ready()

CVEs

• CVE-2022-48637
• CVE-2023-52458
• CVE-2023-52635
• CVE-2023-52809
• CVE-2023-52885
• CVE-2024-26601
• CVE-2024-26737
• CVE-2024-26930
• CVE-2024-26947
• CVE-2024-27030
• CVE-2024-27062
• CVE-2024-33621
• CVE-2024-35823
• CVE-2024-35885
• CVE-2024-35896
• CVE-2024-35962
• CVE-2024-36017
• CVE-2024-36020
• CVE-2024-36929
• CVE-2024-36960
• CVE-2024-38384
• CVE-2024-38663

References

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