CVE-2024-26598

High

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache There is a potential UAF scenario in the case of an LPI translation cache hit racing with an operation that invalidates the cache, such as a DISCARD ITS command. The root of the problem is that vgic_its_check_cache() does not elevate the refcount on the vgic_irq before dropping the lock that serializes refcount changes. Have vgic_its_check_cache() raise the refcount on the returned vgic_irq and add the corresponding decrement after queueing the interrupt.

SeverityHigh
CVSS8.8
Exploit probability—
ProductLinux Kernel
PublishedFeb 23, 2024
First seenFeb 23, 2024

How to fix

Update
  • linux linux_kernel5.4.269, 5.10.209, 5.15.148, 6.1.75, 6.6.14, 6.7.2 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel5.4 ≤ v < 5.4.269, 5.5 ≤ v < 5.10.209, 5.11 ≤ v < 5.15.148, 5.16 ≤ v < 6.1.75, 6.2 ≤ v < 6.6.14, 6.7 ≤ v < 6.7.25.4.269, 5.10.209, 5.15.148, 6.1.75, 6.6.14, 6.7.2
debian debian_linux10.0—

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CVE-2024-26598 · Linux Kernel · Dark Radar