SB20260918395 - NULL pointer dereference in Linux kernel phy qualcomm driver
Published: September 18, 2026
Security Bulletin ID
SB20260918395
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2026-90282)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 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]
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.
Remediation
Install update from vendor's website.
References
- 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