CVE-2024-26598

Vulnerability overview

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.

Affected product and versions

Product

Linux Linux, linux_kernel, linux kernel

Affected versions

>= 6211753fdfd05af9e08f54c8d0ba3ee516034878 < d04acadb6490aa3314f9c9e087691e55de153b88, >= 6211753fdfd05af9e08f54c8d0ba3ee516034878 < ba7be666740847d967822bed15500656b26bc703, >= 6211753fdfd05af9e08f54c8d0ba3ee516034878 < 12c2759ab1343c124ed46ba48f27bd1ef5d2dff4, >= 6211753fdfd05af9e08f54c8d0ba3ee516034878 < dba788e25f05209adf2b0175eb1691dc89fb1ba6, >= 6211753fdfd05af9e08f54c8d0ba3ee516034878 < 65b201bf3e9af1b0254243a5881390eda56f72d1, >= 6211753fdfd05af9e08f54c8d0ba3ee516034878 < dd3956a1b3dd11f46488c928cb890d6937d1ca80, >= 6211753fdfd05af9e08f54c8d0ba3ee516034878 < ad362fe07fecf0aba839ff2cc59a3617bd42c33f, >= 3.11, >= 1da177e4c3f4 < d04acadb6490, >= 1da177e4c3f4 < ba7be6667408, >= 1da177e4c3f4 < 12c2759ab134, >= 1da177e4c3f4 < dba788e25f05, >= 1da177e4c3f4 < 65b201bf3e9a, >= 1da177e4c3f4 < dd3956a1b3dd, >= 1da177e4c3f4 < ad362fe07fec, >= 5.4 < 5.4.269, >= 5.5 < 5.10.209, >= 5.11 < 5.15.148, >= 5.16 < 6.1.75, >= 6.2 < 6.6.14

Fixed versions

5.4.269, 5.10.209, 5.15.148, 6.1.75, 6.6.14, 6.7.2

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-416