Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: xfs: resample the data fork mapping after cycling ILOCK CVE-2026-64600 Affected Packages: kernel Note: This advisory is applicable to Amazon Linux 2 - Kernel-5.10 Extra. Visit this page to learn more about Amazon...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: xfs: resample the data fork mapping after cycling ILOCK CVE-2026-64600 Affected Packages: kernel Issue Correction: Run dnf update kernel --releasever 2023.12.20260727 or dnf update --advisory ALAS2023-2026-2005...

UBUNTU-CVE-2026-64600

In the Linux kernel, the following vulnerability has been resolved: xfs: resample the data fork mapping after cycling ILOCK xfsreflinkfillcowhole,delalloc are both presented with an inode, a data fork mapping, and a cow fork mapping. Unfortunately, these two helpers cycle the ILOCK to grab a...

CVE-2026-64600

The CVE-2026-64600 issue affects the Linux kernel’s XFS implementation. The race arises when xfs_reflink_fill_{cow_hole,delalloc} cycle the ILOCK to obtain a transaction, leaving data fork and cow fork mappings stale after reacquiring the ILOCK. Specifically, the data fork mapping was not refresh...

CVE-2026-64600

creationtimestamp| type| source ---|---|--- 2026-07-22 17:00:03+00:00| seen| https://t.me/ctinow/253790 2026-07-22 17:23:30+00:00| seen| https://bsky.app/profile/infosec.skyfleet.blue/post/3mratmy74ar2r 2026-07-22 17:31:16+00:00| seen|...

RefluXFS: A Linux Kernel Local Privilege Escalation to Root in XFS (CVE-2026-64600)

Executive summary Qualys Threat Research Unit TRU identified CVE-2026-64600, a race condition in the Linux kernel’s XFS filesystem copy-on-write path. An attacker with an ordinary local account can exploit this race condition to overwrite protected files on disk and gain host root privileges on...