RHSA-2024:6297 - Security Advisory

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions, and Red Hat Enterprise Linux 8.6 Telecommunications Update Service.

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 packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: cxgb4: avoid accessing registers when clearing filters (CVE-2021-47138)
• kernel: hv_netvsc: Fix race condition between netvsc_probe and netvsc_remove (CVE-2024-26698)
• kernel: mm/slub: fix to return errno if kmalloc() fails (CVE-2022-48659)
• kernel: Squashfs: check the inode number is not the invalid value of zero (CVE-2024-26982)
• kernel: vt: fix unicode buffer corruption when deleting characters (CVE-2024-35823)
• kernel: nvme-rdma: destroy cm id before destroy qp to avoid use after free (CVE-2021-47378)
• kernel: userfaultfd: fix a race between writeprotect and exit_mmap() (CVE-2021-47461)
• kernel: r8169: Fix possible ring buffer corruption on fragmented Tx packets. (CVE-2024-38586)
• kernel: bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE (CVE-2024-38564)
• kernel: bnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq (CVE-2024-38540)
• kernel: iommu: Fix potential use-after-free during probe (CVE-2022-48796)
• kernel: xfs: add bounds checking to xlog_recover_process_data (CVE-2024-41014)

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 x86_64 - Extended Update Support Extension 8.6 x86_64
• Red Hat Enterprise Linux Server - AUS 8.6 x86_64
• Red Hat Enterprise Linux Server - TUS 8.6 x86_64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 8.6 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.6 x86_64

Fixes

• BZ - 2271484 - CVE-2021-47138 kernel: cxgb4: avoid accessing registers when clearing filters
• BZ - 2273117 - CVE-2024-26698 kernel: hv_netvsc: Fix race condition between netvsc_probe and netvsc_remove
• BZ - 2277801 - CVE-2022-48659 kernel: mm/slub: fix to return errno if kmalloc() fails
• BZ - 2278337 - CVE-2024-26982 kernel: Squashfs: check the inode number is not the invalid value of zero
• BZ - 2281190 - CVE-2024-35823 kernel: vt: fix unicode buffer corruption when deleting characters
• BZ - 2282362 - CVE-2021-47378 kernel: nvme-rdma: destroy cm id before destroy qp to avoid use after free
• BZ - 2282896 - CVE-2021-47461 kernel: userfaultfd: fix a race between writeprotect and exit_mmap()
• BZ - 2293402 - CVE-2024-38586 kernel: r8169: Fix possible ring buffer corruption on fragmented Tx packets.
• BZ - 2293429 - CVE-2024-38564 kernel: bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE
• BZ - 2293459 - CVE-2024-38540 kernel: bnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq
• BZ - 2298132 - CVE-2022-48796 kernel: iommu: Fix potential use-after-free during probe
• BZ - 2300297 - CVE-2024-41014 kernel: xfs: add bounds checking to xlog_recover_process_data

CVEs

• CVE-2021-47138
• CVE-2021-47378
• CVE-2021-47461
• CVE-2022-48659
• CVE-2022-48796
• CVE-2024-26698
• CVE-2024-26982
• CVE-2024-35823
• CVE-2024-38540
• CVE-2024-38564
• CVE-2024-38586
• CVE-2024-41014

References

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