CVE-2026-64027

The CVE-2026-64027 issue affects the Linux kernel net: shaper component (XArray-based marking of entries). A race occurs when a reader observes a VALID mark is later invalidated by a writer reusing a slot, potentially leading to a use-after-free if net_shaper_rollback() frees entries without obse...

PT-2026-61344

In the Linux kernel, the following vulnerability has been resolved: net: shaper: rework the VALID marking again Recent commit changed the semantics from NOT VALID to VALID. I didn't realize that the flags are not stored atomically with the entry in XArray. There's still a race of reader observing...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: btrfs: Fixed a lockup issue caused by a race condition between inode eviction and inode caching. There is a race condition between inode eviction and inode caching that can cause a live struct btrfsinode to be missing from the...

SUSE CVE-2025-39884

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix subvolume deletion lockup caused by inodes xarray race There is a race condition between inode eviction and inode caching that can cause a live struct btrfsinode to be missing from the root-inodes xarray. Specifically,...

CVE-2025-39884 btrfs: fix subvolume deletion lockup caused by inodes xarray race

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix subvolume deletion lockup caused by inodes xarray race There is a race condition between inode eviction and inode caching that can cause a live struct btrfsinode to be missing from the root-inodes xarray. Specifically,...

CVE-2025-39884

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix subvolume deletion lockup caused by inodes xarray race There is a race condition between inode eviction and inode caching that can cause a live struct btrfsinode to be missing from the root-inodes xarray. Specifically,...

CVE-2025-39884

Mode C: The provided documents describe CVE-2025-39884 as a Linux kernel (btrfs) race where eviction and inode caching can lose a live btrfs_inode in root->inodes, breaking subvolume deletion. The root cause is a window in evict() between unhashed inode removal and xarray deletion, allowing a ...

CVE-2025-39884 btrfs: fix subvolume deletion lockup caused by inodes xarray race

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix subvolume deletion lockup caused by inodes xarray race There is a race condition between inode eviction and inode caching that can cause a live struct btrfsinode to be missing from the root-inodes xarray. Specifically,...

CVE-2025-39884 btrfs: fix subvolume deletion lockup caused by inodes xarray race

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix subvolume deletion lockup caused by inodes xarray race There is a race condition between inode eviction and inode caching that can cause a live struct btrfsinode to be missing from the root-inodes xarray. Specifically,...

PT-2025-39141

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists between inode eviction and inode caching within the Btrfs file system. This condition can lead to a live struct btrfs inode being absent from the root-inodes...