NULL pointer dereference in Linux kernel - CVE-2026-90282

Vulnerability identifier: #VU151208

CSH Severity: Low

CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-90282

CWE-ID: CWE-476

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a null pointer dereference in the runtime suspend and resume callbacks of the Qualcomm QMP USB legacy PHY driver when runtime power management executes before PHY initialization. A local user can re-enable runtime power management through the sysfs attribute before the PHY is initialized to cause a denial of service.

Linux kernel
Debian Linux
Ubuntu
linux (Ubuntu package)
linux-aws (Ubuntu package)
linux-gcp (Ubuntu package)
linux-oracle (Ubuntu package)
linux-ibm (Ubuntu package)
linux-hwe-7.0 (Ubuntu package)
linux-oem-7.0 (Ubuntu package)
linux (Debian package)

Install security update from vendor's repository.

linux (Ubuntu package) - update to 7.0.0-42.42
linux-aws (Ubuntu package) - update to 7.0.0-1016.17
linux-gcp (Ubuntu package) - update to 7.0.0-1016.18
linux-oracle (Ubuntu package) - update to 7.0.0-1015.16
linux-ibm (Ubuntu package) - update to 7.0.0-1017.17
linux-hwe-7.0 (Ubuntu package) - update to 7.0.0-42.42~24.04.1
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1017.17
linux (Debian package) - update to 6.12.111-1

• https://git.kernel.org/stable/c/0f9789d1b63e7d9f868ac9c29564339a4c03ceb5
• https://git.kernel.org/stable/c/29449ce1f5958e36df80318878016e3ecac26b40
• https://git.kernel.org/stable/c/52ad86ea5f98d29a7a29d9ba12e24276c6e30acd
• https://git.kernel.org/stable/c/602059c5128a78857ca92bd22791ab640185e381
• https://git.kernel.org/stable/c/8e3687f7e18fe84372e86875709d56c37e7525a8

• NULL pointer dereference in Linux kernel phy qualcomm driver
• Debian update for linux
• Ubuntu update for linux-oem-7.0
• Ubuntu update for linux, linux-aws, linux-gcp and more