Red Hat Security Advisory: kernel security, bug fix, and enhancement update
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.
AI Analysis
Technical Summary
The advisory covers a set of kernel security fixes for Red Hat Enterprise Linux 9.4, including multiple use-after-free vulnerabilities (e.g., CVE-2024-27398, CVE-2024-50125, CVE-2026-31408, CVE-2026-45984) primarily affecting Bluetooth SCO, GFS2, and RDMA components. Additional fixes address improper flag clearing in IMA (CVE-2025-68183), netfilter helper cleanup (CVE-2026-43027), out-of-bounds writes in ALSA USB audio (CVE-2026-43279), length validation in DLM (CVE-2026-43125), and code correctness in WiFi mac80211 and RDMA subsystems. The advisory also includes bug fixes for kernel panics and cryptographic enhancements. The update is distributed via Red Hat Enterprise Linux 9.4 packages and requires rebooting the system to apply.
Potential Impact
The vulnerabilities fixed include use-after-free bugs that could potentially lead to system instability or privilege escalation if exploited. The advisory rates the security impact as Important. No known exploits in the wild have been reported. The bugs affect core kernel components related to Bluetooth, networking, file systems, and device drivers, which could impact system reliability and security if left unpatched.
Mitigation Recommendations
Red Hat has released updated kernel packages for Red Hat Enterprise Linux 9.4 that address these vulnerabilities. Users should apply the update promptly following Red Hat's guidance at https://access.redhat.com/articles/11258 and reboot their systems to ensure the fixes take effect. No additional mitigations are specified or required beyond applying the official update and rebooting.
Red Hat Security Advisory: kernel security, bug fix, and enhancement update
Description
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.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The advisory covers a set of kernel security fixes for Red Hat Enterprise Linux 9.4, including multiple use-after-free vulnerabilities (e.g., CVE-2024-27398, CVE-2024-50125, CVE-2026-31408, CVE-2026-45984) primarily affecting Bluetooth SCO, GFS2, and RDMA components. Additional fixes address improper flag clearing in IMA (CVE-2025-68183), netfilter helper cleanup (CVE-2026-43027), out-of-bounds writes in ALSA USB audio (CVE-2026-43279), length validation in DLM (CVE-2026-43125), and code correctness in WiFi mac80211 and RDMA subsystems. The advisory also includes bug fixes for kernel panics and cryptographic enhancements. The update is distributed via Red Hat Enterprise Linux 9.4 packages and requires rebooting the system to apply.
Potential Impact
The vulnerabilities fixed include use-after-free bugs that could potentially lead to system instability or privilege escalation if exploited. The advisory rates the security impact as Important. No known exploits in the wild have been reported. The bugs affect core kernel components related to Bluetooth, networking, file systems, and device drivers, which could impact system reliability and security if left unpatched.
Mitigation Recommendations
Red Hat has released updated kernel packages for Red Hat Enterprise Linux 9.4 that address these vulnerabilities. Users should apply the update promptly following Red Hat's guidance at https://access.redhat.com/articles/11258 and reboot their systems to ensure the fixes take effect. No additional mitigations are specified or required beyond applying the official update and rebooting.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:36767
- Cve Count
- 10
- Additional Cves
- ["CVE-2024-50125","CVE-2025-68183","CVE-2026-31408","CVE-2026-43027","CVE-2026-43125","CVE-2026-43279","CVE-2026-45984","CVE-2026-46152","CVE-2026-46189"]
- Cvss Version
- null
Threat ID: 6a55ffb868715ace432facc7
Added to database: 07/14/2026, 09:22:00 UTC
Last enriched: 08/17/2026, 21:46:12 UTC
Last updated: 08/28/2026, 10:52:01 UTC
Views: 129
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