CVE-2024-26598
KVM: arm64: vgic-its: Avoid potential UAF in LPI translation cache
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
CISA's decision points: whether it is exploited, whether attacks can be automated, and how much control an attacker gets. Assessed (SSVC 2.0.3).What do these mean? →
- Exploitation: none
- Automatable: no
- Technical impact: total
Summary
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.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: no · Technical impact: total
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
3.11
References 7
git.kernel.org
- stable/c/d04acadb6490aa3314f9c9e087691e55de153b88
- stable/c/ba7be666740847d967822bed15500656b26bc703
- stable/c/12c2759ab1343c124ed46ba48f27bd1ef5d2dff4
- stable/c/dba788e25f05209adf2b0175eb1691dc89fb1ba6
- stable/c/65b201bf3e9af1b0254243a5881390eda56f72d1
- stable/c/dd3956a1b3dd11f46488c928cb890d6937d1ca80
- stable/c/ad362fe07fecf0aba839ff2cc59a3617bd42c33f