RHSA-2026:36767 — Security Advisory

An update for kernel is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions.

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.

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

Security Fix(es):

• kernel: Bluetooth: Fix use-after-free bugs caused by sco_sock_timeout (CVE-2024-27398)

• kernel: Bluetooth: SCO: Fix UAF on sco_sock_timeout (CVE-2024-50125)

• kernel: ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr (CVE-2025-68183)

• kernel: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold (CVE-2026-31408)

• kernel: netfilter: nf_conntrack_helper: pass helper to expect cleanup (CVE-2026-43027)

• kernel: ALSA: usb-audio: Add sanity check for OOB writes at silencing (CVE-2026-43279)

• kernel: dlm: validate length in dlm_search_rsb_tree (CVE-2026-43125)

• kernel: gfs2: Fix use-after-free in iomap inline data write path (CVE-2026-45984)

• kernel: wifi: mac80211: drop stray 'static' from fast-RX rx_result (CVE-2026-46152)

• kernel: RDMA/vmw_pvrdma: Fix double free on pvrdma_alloc_ucontext() error path (CVE-2026-46189)

Bug Fix(es) and Enhancement(s):

• Kernel panic while shutting down ice driver due to use-after-free [rhel-9.4.z] (JIRA:RHEL-177523)

• crypto: testmgr - allow authenc(hmac(sha{256,384}),cts(cbc(aes))) in FIPS mode [rhel-9.4.z] (JIRA:RHEL-182538)

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.