Type Confusion in Linux kernel - CVE-2026-89995
Published: September 16, 2026
Vulnerability identifier: #VU150296
CSH Severity: High
CVSS v4: 8.7 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-89995
CWE-ID: CWE-843
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise confidentiality, integrity, and availability.
The vulnerability exists due to type confusion in dma_direct_alloc_from_pool() when dma_direct_alloc_pages() uses DMA coherent pool allocations. A remote attacker can trigger DMA page allocation through the affected path to compromise confidentiality, integrity, and availability.
Affected software
Linux kernel
How to mitigate CVE-2026-89995
Install security update from vendor's repository.