Red Hat Security Advisory: kpatch-patch-4_18_0-553_16_1, kpatch-patch-4_18_0-553_30_1, kpatch-patch-4_18_0-553_40_1, kpatch-patch-4_18_0-553_53_1, and kpatch-patch-4_18_0-553_72_1 security update
This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel. This patch module is targeted for kernel-4.18.0-553.16.1.el8_10. Security Fix(es): * kernel: net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done (CVE-2025-38052) * kernel: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() (CVE-2025-38352) 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 Red Hat security advisory RHSA-2025:15921 provides updated kpatch live patch modules for Red Hat Enterprise Linux 8 targeting kernel-4.18.0-553.16.1.el8_10. It fixes two vulnerabilities: CVE-2025-38052, a slab-use-after-free read in the tipc_aead_encrypt_done function of the net/tipc kernel component, and CVE-2025-38352, a race condition between handle_posix_cpu_timers() and posix_cpu_timer_del() in the posix-cpu-timers kernel subsystem. These vulnerabilities could lead to memory corruption or race condition issues in the kernel. The advisory classifies the update as important and recommends applying the patch and rebooting the system for the changes to take effect.
Potential Impact
The vulnerabilities involve a use-after-free memory access and a race condition in kernel components, which could potentially lead to kernel instability or security issues such as memory corruption. The advisory rates the security impact as Important (high severity). No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated kpatch live patch modules that address these vulnerabilities. Users should apply the provided security update for the kpatch-patch-4_18_0-553_* packages targeting kernel-4.18.0-553.16.1.el8_10. A system reboot is required for the update to take effect. Refer to Red Hat's official update instructions at https://access.redhat.com/articles/11258. Patch status is confirmed as available and official.
Red Hat Security Advisory: kpatch-patch-4_18_0-553_16_1, kpatch-patch-4_18_0-553_30_1, kpatch-patch-4_18_0-553_40_1, kpatch-patch-4_18_0-553_53_1, and kpatch-patch-4_18_0-553_72_1 security update
Description
This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel. This patch module is targeted for kernel-4.18.0-553.16.1.el8_10. Security Fix(es): * kernel: net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done (CVE-2025-38052) * kernel: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() (CVE-2025-38352) 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
The Red Hat security advisory RHSA-2025:15921 provides updated kpatch live patch modules for Red Hat Enterprise Linux 8 targeting kernel-4.18.0-553.16.1.el8_10. It fixes two vulnerabilities: CVE-2025-38052, a slab-use-after-free read in the tipc_aead_encrypt_done function of the net/tipc kernel component, and CVE-2025-38352, a race condition between handle_posix_cpu_timers() and posix_cpu_timer_del() in the posix-cpu-timers kernel subsystem. These vulnerabilities could lead to memory corruption or race condition issues in the kernel. The advisory classifies the update as important and recommends applying the patch and rebooting the system for the changes to take effect.
Potential Impact
The vulnerabilities involve a use-after-free memory access and a race condition in kernel components, which could potentially lead to kernel instability or security issues such as memory corruption. The advisory rates the security impact as Important (high severity). No known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released updated kpatch live patch modules that address these vulnerabilities. Users should apply the provided security update for the kpatch-patch-4_18_0-553_* packages targeting kernel-4.18.0-553.16.1.el8_10. A system reboot is required for the update to take effect. Refer to Red Hat's official update instructions at https://access.redhat.com/articles/11258. Patch status is confirmed as available and official.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:15921
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-38352"]
Threat ID: 6a3caf114853345fc153d184
Added to database: 06/25/2026, 04:31:13 UTC
Last enriched: 06/25/2026, 04:46:43 UTC
Last updated: 09/10/2026, 19:36:50 UTC
Views: 66
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.