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kernel

A security advisory from Red Hat addresses multiple vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 10 and related products. The update fixes issues including race conditions, buffer overflows, use-after-free, and validation errors across various kernel subsystems such as NFS, vsock/virtio, IPv6, ALSA audio, and others. The advisory rates the overall impact as moderate and requires a system reboot after applying the update.

Red Hat issued a security advisory (RHSA-2025:21118) for the Linux kernel in Red Hat Enterprise Linux 10 and related variants, resolving twelve distinct vulnerabilities (CVE-2025-38498, CVE-2025-39697, CVE-2025-39702, CVE-2025-39718, CVE-2025-39727, CVE-2025-39751, CVE-2025-39757, CVE-2025-39817, CVE-2025-39841, CVE-2025-39849, CVE-2025-39881, CVE-2025-40300). These include fixes for race conditions, buffer overflows, slab out-of-bounds, use-after-free, and validation errors in kernel components such as mount operations, NFS, virtual socket communication, IPv6 segment routing, memory management swap clusters, USB audio descriptors, and others. The advisory does not provide CVSS scores but classifies the impact as moderate. The update requires rebooting the system to take effect.

Detailed information about Red Hat Security Advisory: kernel security update affecting Red Hat Product Security Red Hat. Get real-time updates, technical detail

Red Hat Security Advisory: kernel security update - Live Threat Intelligence - Threat Radar | OffSeq.com

https://access.redhat.com/errata/RHSA-2025:21118

https://access.redhat.com/security/updates/classification/#moderate

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Red Hat Security Advisory: kernel security update

In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.

Red Hat Product Security issued an advisory (RHSA-2025:19469) for a kernel security update affecting Red Hat Enterprise Linux 10. It addresses two vulnerabilities: CVE-2025-39702, which fixes a constant-time MAC comparison in IPv6 Segment Routing to prevent timing attacks, and CVE-2025-39881, which fixes a use-after-free vulnerability in kernfs polling related to file release. The advisory includes updated kernel packages and requires a reboot to apply the fixes. The update is rated moderate in severity and affects multiple architectures and variants of Red Hat Enterprise Linux 10 and CodeReady Linux Builder 10. No CVSS scores are provided in the advisory; users are directed to CVE pages for detailed scoring.

https://access.redhat.com/errata/RHSA-2025:19469

Linux azure: In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: Fix MAC comparison to be constant-time To prevent timing attacks, MACs… (CVE-2025-39702)


Red Hat Security Advisory: kernel security updateCVE-2025-38498 0 A security advisory from Red Hat addresses multiple vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 10 and related products. The update fixes issues including race conditions, buffer overflows, use-after-free, and validation errors across various kernel subsystems such as NFS, vsock/virtio, IPv6, ALSA audio, and others. The advisory rates the overall impact as moderate and requires a system reboot after applying the update. MediumVulnerability#gcve #csaf #cve-2025-38498 Join the discussion	GCVE Database	11/12/2025, 12:41:03 UTC Added: 06/25/2026, 21:47:09 UTC
Linux azure: In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: Fix MAC comparison to be constant-time To prevent timing attacks, MACs… (CVE-2025-39702)CVE-2025-39702 0 In the Linux kernel, the following vulnerability has been resolved: ipv6: sr: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this. MediumVulnerability#gcve #csaf #cve-2025-39702 Join the discussion	GCVE Database	09/05/2025, 18:15:00 UTC Added: 06/25/2026, 21:47:11 UTC

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