ALAS2023LIVEPATCH-2025-085

References: CVE-2025-38248  CVE-2025-39673  CVE-2025-39677  CVE-2025-39691  CVE-2025-39730 
FAQs regarding Amazon Linux ALAS/CVE Severity

Issue Overview:

In the Linux kernel, the following vulnerability has been resolved:

bridge: mcast: Fix use-after-free during router port configuration (CVE-2025-38248)

In the Linux kernel, the following vulnerability has been resolved:

ppp: fix race conditions in ppp_fill_forward_path (CVE-2025-39673)

In the Linux kernel, the following vulnerability has been resolved:

net/sched: Fix backlog accounting in qdisc_dequeue_internal (CVE-2025-39677)

In the Linux kernel, the following vulnerability has been resolved:

fs/buffer: fix use-after-free when call bh_read() helper (CVE-2025-39691)

In the Linux kernel, the following vulnerability has been resolved:

NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() (CVE-2025-39730)

Issue Correction:
Please ensure you have live patching enabled. Run dnf update kernel-livepatch-6.1.147-172.259 --releasever latest or dnf update --advisory ALAS2023LIVEPATCH-2025-085 --releasever latest to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation

New Packages:

aarch64:
    kernel-livepatch-6.1.147-172.259-1.0-2.amzn2023.aarch64

src:
    kernel-livepatch-6.1.147-172.259-1.0-2.amzn2023.src

x86_64:
    kernel-livepatch-6.1.147-172.259-1.0-2.amzn2023.x86_64