Moderate: kernel security, bug fix, and enhancement update

Topic

An update for kernel is now available for Red Hat Enterprise Linux 9.

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):

• information leak in scsi_ioctl() (CVE-2022-0494)
• use-after-free in tc_new_tfilter() in net/sched/cls_api.c (CVE-2022-1055)

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):

• Power9 - LPAR fails to boot in shared processing mode and call traces are seen [Hash] (BZ#2092248)
• Hard lockups are observed while running stress-ng and LPAR hangs (BZ#2092253)
• FIPS module identification via name and version (BZ#2093384)
• gfs2: File corruption with large writes when memory is tight (BZ#2097306)
• i/o on initiator stuck when network is disrupted (4.18.0-372.9.1.el8.x86_64) (BZ#2098251)
• RHEL 9.1 doesn't support 3rd SATA (BZ#2099740)
• Guest call trace when reboot after postcopy migration with high stress workload (BZ#2100903)
• Oops or general protection fault with RIP decode_attr_security_label at decode_getfattr_attrs (BZ#2101854)
• Oops as BUG: unable to handle page fault as free of uninitialized nfs4_label on nfs referral lookup (BZ#2101858)
• lpar crash with Oops: Kernel access of bad area, sig: 11 [#1] when changing mtu of a bond interface (P10/ ibmvnic/ Haleakala) (BZ#2103085)
• OS doesn't boot when vmd and interrupt remapping are enabled (BZ#2109974)

Enhancement(s):

• iommu/vt-d: Make DMAR_UNITS_SUPPORTED a config setting (BZ#2105326)

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 9 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.0 x86_64
• Red Hat Enterprise Linux for IBM z Systems 9 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.0 s390x
• Red Hat Enterprise Linux for Power, little endian 9 ppc64le
• Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.0 ppc64le
• Red Hat Enterprise Linux for ARM 64 9 aarch64
• Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.0 ppc64le
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.0 x86_64
• Red Hat CodeReady Linux Builder for x86_64 9 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian 9 ppc64le
• Red Hat CodeReady Linux Builder for ARM 64 9 aarch64
• Red Hat CodeReady Linux Builder for IBM z Systems 9 s390x
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.0 aarch64
• Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support 9.0 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support 9.0 ppc64le
• Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support 9.0 s390x
• Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support 9.0 aarch64
• Red Hat Enterprise Linux Server for ARM 64 - 4 years of updates 9.0 aarch64
• Red Hat Enterprise Linux Server for IBM z Systems - 4 years of updates 9.0 s390x

Fixes

• BZ - 2039448 - CVE-2022-0494 kernel: information leak in scsi_ioctl()
• BZ - 2070220 - CVE-2022-1055 kernel: use-after-free in tc_new_tfilter() in net/sched/cls_api.c

CVEs

• CVE-2022-0494
• CVE-2022-1055

References

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