Bug 2562773 (CVE-2026-99146) - CVE-2026-99146 kernel: kernel: Denial of Service via unvalidated DMC firmware load address in i915 driver
Summary: CVE-2026-99146 kernel: kernel: Denial of Service via unvalidated DMC firmware...
Keywords:
Status: NEW
Alias: CVE-2026-99146
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-10-28 11:06 UTC by OSIDB Bzimport
Modified: 2026-10-29 18:27 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-10-28 11:06:47 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/i915/dmc: Add sanity check for DMC load address

For DMC firmware header version 3, the firmware load address is stored
in dmc_info->start_mmioaddr and later used by dmc_load_program().

Unlike the MMIO address table, the firmware load address is not
validated. Add a sanity check to ensure it is within the valid range.

BSpec: 69671, 68378
(cherry picked from commit 5e47ee5c76ca9becde8df4ad5202845b7ffcbc4c)
Note You need to log in before you can comment on or make changes to this bug.