RHSA-2025:10193 - Security Advisory

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions.

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: use-after-free in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c (CVE-2023-1652)
• kernel: dlm: fix plock invalid read (CVE-2022-49407)
• kernel: blk-mq: don't touch ->tagset in blk_mq_get_sq_hctx (CVE-2022-49377)
• kernel: Bluetooth: Fix use after free in hci_send_acl (CVE-2022-49111)
• kernel: scsi: libfc: Fix use after free in fc_exch_abts_resp() (CVE-2022-49114)

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 - Update Services for SAP Solutions 9.0 x86_64

Fixes

• BZ - 2182031 - CVE-2023-1652 Kernel: use-after-free in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c
• BZ - 2347662 - CVE-2022-49407 kernel: dlm: fix plock invalid read
• BZ - 2347929 - CVE-2022-49377 kernel: blk-mq: don't touch ->tagset in blk_mq_get_sq_hctx
• BZ - 2347952 - CVE-2022-49111 kernel: Bluetooth: Fix use after free in hci_send_acl
• BZ - 2348136 - CVE-2022-49114 kernel: scsi: libfc: Fix use after free in fc_exch_abts_resp()

CVEs

• CVE-2022-49111
• CVE-2022-49114
• CVE-2022-49377
• CVE-2022-49407
• CVE-2023-1652

References

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