PT-2024-1990 · Linux+6 · Linux Kernel+6
Oliver Upton
·
Published
2024-01-04
·
Updated
2025-09-29
·
CVE-2024-26598
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 a potential use-after-free (UAF) scenario in the Linux kernel's KVM: arm64: vgic-its module. This occurs when an LPI translation cache hit races with an operation that invalidates the cache, such as a DISCARD ITS command. The root of the problem is that the
vgic its check cache() function does not elevate the refcount on the vgic irq before dropping the lock that serializes refcount changes. To resolve this, vgic its check cache() should raise the refcount on the returned vgic irq and add the corresponding decrement after queueing the interrupt.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Use After Free
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu