Bug 2493739 (CVE-2026-53290) - CVE-2026-53290 kernel: drm/xe/eustall: Fix drm_dev_put called before stream disable in close
Summary: CVE-2026-53290 kernel: drm/xe/eustall: Fix drm_dev_put called before stream d...
Keywords:
Status: NEW
Alias: CVE-2026-53290
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-26 21:04 UTC by OSIDB Bzimport
Modified: 2026-06-29 09:22 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-06-26 21:04:22 UTC
In the Linux kernel, the following vulnerability has been resolved:

drm/xe/eustall: Fix drm_dev_put called before stream disable in close

In xe_eu_stall_stream_close(), drm_dev_put() is called before the
stream is disabled and its resources are freed. If this drops the
last reference, the device structures could be freed while the
subsequent cleanup code still accesses them, leading to a
use-after-free.

Fix this by moving drm_dev_put() after all device accesses are
complete. This matches the ordering in xe_oa_release().

(cherry picked from commit 35aff528f7297e949e5e19c9cd7fd748cf1cf21c)

Comment 1 Mauro Matteo Cascella 2026-06-29 09:16:14 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026062616-CVE-2026-53290-1a5a@gregkh/T


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