Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: zram: Fixed the race condition involving slot write operations. Parallel concurrent writes to the same zram index result in the zsmalloc handles being leaked. Schematically, it looks like this: CPU0 CPU1 zramslotlock...

Linux Distros Unpatched Vulnerability : CVE-2025-39941

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - zram: fix slot write race condition Parallel concurrent writes to the same zram index result in leaked zsmalloc handles. Schematically we can have something lik...

SUSE CVE-2025-39941

In the Linux kernel, the following vulnerability has been resolved: zram: fix slot write race condition Parallel concurrent writes to the same zram index result in leaked zsmalloc handles. Schematically we can have something like this: CPU0 CPU1 zramslotlock zsfreehandle zramslotlock zramslotlock...

CVE-2025-39941

CVE-2025-39941 relates to the Linux kernel zram subsystem. The vulnerability arises from a race in slot write handling where parallel writes to the same zram index can leak zsmalloc handles because zs_free() is executed too early. The documented fix is to reset the zram entry and assign the new h...