SB2026102297 - Infinite loop in Linux kernel i915 gem driver

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Main Vulnerability Database SB2026102297

SB2026102297 - Infinite loop in Linux kernel i915 gem driver

Published: October 22, 2026

Security Bulletin ID SB2026102297
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) Infinite loop (CVE-ID: CVE-2026-98521)

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

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 cause a denial of service through an endless loop in the Linux kernel's i915 graphics driver.

The vulnerability exists due to incorrect RCU teardown ordering in the i915 GEM object lifecycle when a GEM object is destroyed concurrently with fence iteration in i915_gem_busy_ioctl. A local user can trigger concurrent object destruction and fence iteration to cause a denial of service, as prematurely released fence references cause the iterator to restart indefinitely without a replacement fence list.


Remediation

Install update from vendor's website.

References