Bug 2492723 (CVE-2026-53140) - CVE-2026-53140 kernel: drm/v3d: Fix vaddr leak when indirect CSD has zeroed workgroups
Summary: CVE-2026-53140 kernel: drm/v3d: Fix vaddr leak when indirect CSD has zeroed w...
Keywords:
Status: NEW
Alias: CVE-2026-53140
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-25 10:02 UTC by OSIDB Bzimport
Modified: 2026-06-26 07:54 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-06-25 10:02:24 UTC
In the Linux kernel, the following vulnerability has been resolved:

drm/v3d: Fix vaddr leak when indirect CSD has zeroed workgroups

v3d_rewrite_csd_job_wg_counts_from_indirect() maps both the indirect
buffer and the workgroup buffer and is expected to release them before
returning. When any of the workgroup counts read from the buffer is zero,
the function bailed out early and skipped the cleanup, leaking the vaddr
mappings of both BOs.

Jump to the cleanup path instead of returning directly, so the mappings
are always dropped.


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