Red Hat Security Advisory: kernel-rt security update
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: TIPC message reassembly use-after-free remote code execution vulnerability (CVE-2024-36886) * kernel: fs: sysfs: Fix reference leak in sysfs_break_active_protection() (CVE-2024-26993) * kernel: wifi: mac80211: Avoid address calculations via out of bounds array indexing (CVE-2024-41071) 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 kernel-rt security update fixes three vulnerabilities: CVE-2024-36886 is a use-after-free in TIPC message reassembly that could allow remote code execution; CVE-2024-26993 is a reference leak in the sysfs_break_active_protection() function; and CVE-2024-41071 involves out-of-bounds array indexing in the mac80211 WiFi subsystem. These issues affect the Real Time Linux Kernel packages used in Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Telecommunications Update Service, and SAP Solutions Update Services. The advisory references updated kernel-rt packages that remediate these vulnerabilities. The update requires a system reboot to activate the fixes. No known exploits in the wild have been reported at this time.
Potential Impact
Successful exploitation of CVE-2024-36886 could lead to remote code execution due to a use-after-free vulnerability in the TIPC message reassembly code. CVE-2024-26993 causes a reference leak in sysfs, potentially leading to resource exhaustion or instability. CVE-2024-41071 could cause memory corruption or crashes due to out-of-bounds array indexing in the WiFi mac80211 subsystem. Collectively, these vulnerabilities pose a high security risk to affected systems running the kernel-rt packages.
Mitigation Recommendations
Red Hat has released updated kernel-rt packages for Red Hat Enterprise Linux 8.4 variants that address these vulnerabilities. Users should apply the security update as detailed in the Red Hat advisory RHSA-2024:7003 and reboot affected systems to ensure the fixes take effect. No additional mitigation steps are required beyond applying the official update and rebooting.
Red Hat Security Advisory: kernel-rt security update
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: TIPC message reassembly use-after-free remote code execution vulnerability (CVE-2024-36886) * kernel: fs: sysfs: Fix reference leak in sysfs_break_active_protection() (CVE-2024-26993) * kernel: wifi: mac80211: Avoid address calculations via out of bounds array indexing (CVE-2024-41071) 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
pkg:rpm/redhat/kernel-rtRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Red Hat kernel-rt security update fixes three vulnerabilities: CVE-2024-36886 is a use-after-free in TIPC message reassembly that could allow remote code execution; CVE-2024-26993 is a reference leak in the sysfs_break_active_protection() function; and CVE-2024-41071 involves out-of-bounds array indexing in the mac80211 WiFi subsystem. These issues affect the Real Time Linux Kernel packages used in Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Telecommunications Update Service, and SAP Solutions Update Services. The advisory references updated kernel-rt packages that remediate these vulnerabilities. The update requires a system reboot to activate the fixes. No known exploits in the wild have been reported at this time.
Potential Impact
Successful exploitation of CVE-2024-36886 could lead to remote code execution due to a use-after-free vulnerability in the TIPC message reassembly code. CVE-2024-26993 causes a reference leak in sysfs, potentially leading to resource exhaustion or instability. CVE-2024-41071 could cause memory corruption or crashes due to out-of-bounds array indexing in the WiFi mac80211 subsystem. Collectively, these vulnerabilities pose a high security risk to affected systems running the kernel-rt packages.
Mitigation Recommendations
Red Hat has released updated kernel-rt packages for Red Hat Enterprise Linux 8.4 variants that address these vulnerabilities. Users should apply the security update as detailed in the Red Hat advisory RHSA-2024:7003 and reboot affected systems to ensure the fixes take effect. No additional mitigation steps are 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-2024:7003
- Cve Count
- 3
- Additional Cves
- ["CVE-2024-36886","CVE-2024-41071"]
Threat ID: 6a3da1ef4853345fc1831b93
Added to database: 06/25/2026, 21:47:27 UTC
Last enriched: 06/25/2026, 22:43:05 UTC
Last updated: 09/10/2026, 19:36:47 UTC
Views: 53
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