PT-2025-13220 · Linux+7 · Linux Kernel+7
Published
2025-02-24
·
Updated
2026-04-20
·
CVE-2025-21883
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The issue is related to the deinitialization of Virtual Functions (VFs) in the Linux kernel. When
ice ena vfs() fails after calling ice create vf entries(), it frees all VFs without removing them from the snapshot PF-VF mailbox list, leading to list corruption. This can cause a kernel bug, and in some cases, a KASAN report may be seen instead. The problem arises because VFs are added to the list in ice mbx init vf info() but only removed in ice free vfs(). To fix this, the removal of VFs should be moved to ice free vf entries(), which is also called in other places where VFs are being removed.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Improper Resource Release
Use After Free
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Related Identifiers
Affected Products
Almalinux
Astra Linux
Linuxmint
Linux Kernel
Red Hat
Rocky Linux
Suse
Ubuntu