Important: kernel security and bug fix update

Topic

An update for kernel is now available for Red Hat Enterprise Linux 8.6 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. 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: memory corruption in AX88179_178A based USB ethernet device. (CVE-2022-2964)
• kernel: mm/mremap.c use-after-free vulnerability (CVE-2022-41222)
• kernel: net: CPU soft lockup in TC mirred egress-to-ingress action (CVE-2022-4269)

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):

• WARNING: CPU: 116 PID: 3440 at arch/x86/mm/extable.c:105 ex_handler_fprestore+0x3f/0x50 (BZ#2134587)
• fix for "CoW after fork() issue" aka "vmsplice child -> parent attack" aka "GUP after fork bug" (BZ#2137546)
• Hardware error: RIP: copy_user_enhanced_fast_string+0xe (BZ#2137593)
• i40e: orphaned-leaky memory when interacting with driver memory parameters (BZ#2138206)
• RHEL 8.7 - Outputs of lsmem, lparstat, numactl and /proc/meminfo show wrong value of memory when LMB size is set to 4GB. (BZ#2140091)
• RHEL8.7: tcp sessions hanging after ibmvnic failover on Denali (BZ#2140958)
• RHEL8: Practically limit "Dummy wait" workaround to old Intel systems (BZ#2142171)
• RHEL:8.6+ IBM Partner issue - Loopback driver with ABORT_TASKS causing hangs in scsi eh, this bug was cloned for RHEL8.6 and need this patch in 8.6+ (BZ#2144584)
• i40e,iavf: SR-IOV VF devices send GARP with wrong MAC address (BZ#2149746)
• RHEL8.4 - boot: Add secure boot trailer (BZ#2151531)
• error 524 from seccomp(2) when trying to load filter (BZ#2152139)
• The "kernel BUG at mm/usercopy.c:103!" from BZ 2041529 is back on rhel-8.5 (BZ#2153231)
• kernel BUG: scheduling while atomic: crio/7295/0x00000002 (BZ#2154461)
• MSFT MANA NET Patch RHEL-8: Fix race on per-CQ variable napi_iperf panic fix (BZ#2155438)
• GSS: OCP 4.10.30 node crash after ODF upgrade : unable to handle kernel NULL pointer dereference at 0000000000000000 : ceph_get_snap_realm+0x68/0xa0 [ceph] (BZ#2155798)
• RHEL8.8: Backport upstream patches to reduce memory cgroup memory consumption and OOM problem (BZ#2157923)
• 'date' command shows wrong time in nested KVM s390x guest (BZ#2158814)
• Kernel FIPS-140-3 requirements - part 3 - AES-XTS (BZ#2160173)
• ethtool -m results in an out-of-bounds slab write in the be2net driver (BZ#2160183)
• i40e/iavf: VF reset task fails "Never saw reset" with 5 second timeout per VF (BZ#2160461)
• Mellanox: backport "net/mlx5e: TC NIC mode, fix tc chains miss table" (BZ#2161630)
• Kernel panic observed during VxFS module unload (BZ#2162764)
• iavf: It takes long time to create multiple VF interfaces and the VF interface names are not consistent (BZ#2163259)
• In FIPS mode, the kernel should reject SHA-224, SHA-384, SHA-512-224, and SHA-512-256 as hashes for hash-based DRBGs, or provide an indicator after 2023-05-16 (BZ#2165133)
• panic in fib6_rule_suppress+0x22 with custom xdp prog involved in (BZ#2167604)
• net/mlx5e: Fix use-after-free when reverting termination table (BZ#2167641)
• Update intel_idle for Eaglestream/Sapphire Rapids support (BZ#2168357)
• GSS: Set of fixes in ceph kernel module to prevent OCS node kernel crash - blocklist the kclient when receiving corrupted snap trace (BZ#2168898)

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 8.6 x86_64
• Red Hat Enterprise Linux Server - AUS 8.6 x86_64
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 8.6 s390x
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 8.6 ppc64le
• Red Hat Virtualization Host 4 for RHEL 8 x86_64
• Red Hat Enterprise Linux Server - TUS 8.6 x86_64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.6 aarch64
• 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
• Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 8.6 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 8.6 ppc64le
• Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 8.6 aarch64

Fixes

• BZ - 2067482 - CVE-2022-2964 kernel: memory corruption in AX88179_178A based USB ethernet device.
• BZ - 2138818 - CVE-2022-41222 kernel: mm/mremap.c use-after-free vulnerability
• BZ - 2150272 - CVE-2022-4269 kernel: net: CPU soft lockup in TC mirred egress-to-ingress action

CVEs

• CVE-2022-2964
• CVE-2022-4269
• CVE-2022-41222

References

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