NULL pointer dereference in Linux kernel - CVE-2026-90012
Published: September 16, 2026
Vulnerability identifier: #VU150281
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-90012
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper DMA mapping cleanup in __spi_map_msg() and spi_unmap_msg() when handling partial DMA mapping failures. A remote attacker can trigger a partial DMA mapping failure to cause a denial of service.
Affected software
Linux kernel
How to mitigate CVE-2026-90012
Install security update from vendor's repository.