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: net: atm: fix crash due to unvalidated vcc pointer in sigd_send() (CVE-2026-31411) * kernel: crypto: ccp - copy IV using skcipher ivsize (CVE-2026-53016) Bug Fix(es) and Enhancement(s): * vhost: reset the vring metadata cache on vring reconfiguration (JIRA:RHEL-224605) 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
This advisory addresses two kernel vulnerabilities in Red Hat Enterprise Linux 9. CVE-2026-31411 fixes a crash caused by an unvalidated virtual channel connection (vcc) pointer in the sigd_send() function within ATM networking code. CVE-2026-43198 resolves a potential race condition in the tcp_v6_syn_recv_sock() function affecting TCP IPv6 socket handling. The advisory also includes bug fixes for qla2xxx flash image validation and cryptographic enhancements for FIPS mode. The update requires a system reboot to take effect.
Potential Impact
The vulnerabilities could cause system instability or crashes due to unvalidated pointers and race conditions in kernel networking code. These issues may affect the reliability and security of network communications on affected systems. Red Hat rates the security impact as Important, indicating a significant but not critical risk.
Mitigation Recommendations
Red Hat has released an official update for Red Hat Enterprise Linux 9 that addresses these vulnerabilities. Users should apply the kernel update as provided in the advisory RHSA-2026:33285 and reboot their systems to ensure the fixes take effect. No additional mitigation steps are indicated by the vendor.
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: net: atm: fix crash due to unvalidated vcc pointer in sigd_send() (CVE-2026-31411) * kernel: crypto: ccp - copy IV using skcipher ivsize (CVE-2026-53016) Bug Fix(es) and Enhancement(s): * vhost: reset the vring metadata cache on vring reconfiguration (JIRA:RHEL-224605) 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
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory addresses two kernel vulnerabilities in Red Hat Enterprise Linux 9. CVE-2026-31411 fixes a crash caused by an unvalidated virtual channel connection (vcc) pointer in the sigd_send() function within ATM networking code. CVE-2026-43198 resolves a potential race condition in the tcp_v6_syn_recv_sock() function affecting TCP IPv6 socket handling. The advisory also includes bug fixes for qla2xxx flash image validation and cryptographic enhancements for FIPS mode. The update requires a system reboot to take effect.
Potential Impact
The vulnerabilities could cause system instability or crashes due to unvalidated pointers and race conditions in kernel networking code. These issues may affect the reliability and security of network communications on affected systems. Red Hat rates the security impact as Important, indicating a significant but not critical risk.
Mitigation Recommendations
Red Hat has released an official update for Red Hat Enterprise Linux 9 that addresses these vulnerabilities. Users should apply the kernel update as provided in the advisory RHSA-2026:33285 and reboot their systems to ensure the fixes take effect. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:33285
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-43198"]
Threat ID: 6a46ed1527e9c79719447089
Added to database: 07/02/2026, 22:58:29 UTC
Last enriched: 09/12/2026, 21:31:28 UTC
Last updated: 10/01/2026, 00:48:02 UTC
Views: 141
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