SB20261022390 - Memory leak in Linux kernel amd amdgpu driver

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Main Vulnerability Database SB20261022390

SB20261022390 - Memory leak in Linux kernel amd amdgpu driver

Published: October 22, 2026

Security Bulletin ID SB20261022390
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Partial DoS

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Memory leak (CVE-ID: CVE-2026-98780)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]


The vulnerability allows a local user to consume kernel memory and potentially cause a denial of service.

The vulnerability exists due to a memory leak in amdgpu_discovery_sysfs_ips() when kobject_add() fails during IP instance registration. A local user can potentially trigger this failure path to leave ip_hw_instance allocations unreleased because the initial kobject reference is not dropped and normal sysfs teardown cannot find the failed object. Repeated failures may exhaust kernel memory and cause a denial of service.


Remediation

Install update from vendor's website.

References