Red Hat Security Advisory: kernel security update
This Red Hat security advisory addresses multiple vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 10. 0 Extended Update Support and related products. The update fixes eight distinct issues including out-of-bounds access, use-after-free (UAF) conditions, and other kernel memory handling bugs. The advisory rates the security impact as moderate and requires a system reboot after applying the update. No known exploits are reported in the wild at this time.
AI Analysis
Technical Summary
The advisory covers a set of kernel vulnerabilities identified by CVE identifiers CVE-2025-39806, CVE-2025-39843, CVE-2025-39883, CVE-2025-39925, CVE-2025-39981, CVE-2025-39982, CVE-2025-39983, and CVE-2025-40300. These include a slab out-of-bounds access in the HID multitouch driver, fixes to avoid unnecessary kernel thread wake-ups, memory unpoisoning bugs, implementation of a network device unregister notification handler, and multiple use-after-free bugs in Bluetooth components. The update is provided by Red Hat Product Security as part of kernel package updates for various architectures and requires rebooting the system to take effect.
Potential Impact
The vulnerabilities could lead to memory corruption issues such as out-of-bounds access and use-after-free conditions within the kernel, potentially affecting system stability and security. The advisory classifies the overall impact as moderate. There are no reports of active exploitation in the wild. The issues affect core kernel components including HID multitouch, memory management, CAN bus, and Bluetooth subsystems.
Mitigation Recommendations
An official security update is available from Red Hat as detailed in advisory RHSA-2026:0271. Users should apply the provided kernel package updates for their respective Red Hat Enterprise Linux 10.0 Extended Update Support versions and reboot the system to activate the fixes. No additional mitigation steps are indicated by the vendor advisory.
Red Hat Security Advisory: kernel security update
Description
This Red Hat security advisory addresses multiple vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 10. 0 Extended Update Support and related products. The update fixes eight distinct issues including out-of-bounds access, use-after-free (UAF) conditions, and other kernel memory handling bugs. The advisory rates the security impact as moderate and requires a system reboot after applying the update. No known exploits are reported in the wild at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The advisory covers a set of kernel vulnerabilities identified by CVE identifiers CVE-2025-39806, CVE-2025-39843, CVE-2025-39883, CVE-2025-39925, CVE-2025-39981, CVE-2025-39982, CVE-2025-39983, and CVE-2025-40300. These include a slab out-of-bounds access in the HID multitouch driver, fixes to avoid unnecessary kernel thread wake-ups, memory unpoisoning bugs, implementation of a network device unregister notification handler, and multiple use-after-free bugs in Bluetooth components. The update is provided by Red Hat Product Security as part of kernel package updates for various architectures and requires rebooting the system to take effect.
Potential Impact
The vulnerabilities could lead to memory corruption issues such as out-of-bounds access and use-after-free conditions within the kernel, potentially affecting system stability and security. The advisory classifies the overall impact as moderate. There are no reports of active exploitation in the wild. The issues affect core kernel components including HID multitouch, memory management, CAN bus, and Bluetooth subsystems.
Mitigation Recommendations
An official security update is available from Red Hat as detailed in advisory RHSA-2026:0271. Users should apply the provided kernel package updates for their respective Red Hat Enterprise Linux 10.0 Extended Update Support versions and reboot the system to activate the fixes. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:0271
- Cve Count
- 8
- Additional Cves
- ["CVE-2025-39843","CVE-2025-39883","CVE-2025-39925","CVE-2025-39981","CVE-2025-39982","CVE-2025-39983","CVE-2025-40300"]
- Cvss Version
- null
Threat ID: 6a19fee3e29bf47b500feadd
Added to database: 5/29/2026, 9:02:27 PM
Last enriched: 5/29/2026, 9:19:40 PM
Last updated: 5/29/2026, 10:15:50 PM
Views: 3
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