CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
5.1%
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.
Vendor | Product | Version | CPE |
---|---|---|---|
linux | linux_kernel | * | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
debian | debian_linux | 10.0 | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
git.kernel.org/stable/c/12c2759ab1343c124ed46ba48f27bd1ef5d2dff4
git.kernel.org/stable/c/65b201bf3e9af1b0254243a5881390eda56f72d1
git.kernel.org/stable/c/ad362fe07fecf0aba839ff2cc59a3617bd42c33f
git.kernel.org/stable/c/ba7be666740847d967822bed15500656b26bc703
git.kernel.org/stable/c/d04acadb6490aa3314f9c9e087691e55de153b88
git.kernel.org/stable/c/dba788e25f05209adf2b0175eb1691dc89fb1ba6
git.kernel.org/stable/c/dd3956a1b3dd11f46488c928cb890d6937d1ca80
lists.debian.org/debian-lts-announce/2024/06/msg00016.html