In the Linux kernel, the following vulnerability has been resolved:
drm/panthor: Fix UAF in panthor_gem_create_with_handle() debugfs code
The object is potentially already gone after the drm_gem_object_put().
In general the object should be fully constructed before calling
drm_gem_handle_create(), except the debugfs tracking uses a separate
lock and list and separate flag to denotate whether the object is
actually initialized.
Since I'm touching this all anyway simplify this by only adding the
object to the debugfs when it's ready for that, which allows us to
delete that separate flag. panthor_gem_debugfs_bo_rm() already checks
whether we've actually been added to the list or this is some error
path cleanup.
v2: Fix build issues for !CONFIG_DEBUGFS (Adrián)
v3: Add linebreak and remove outdated comment (Liviu)
Metrics
Affected Vendors & Products
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History
Thu, 21 Aug 2025 13:00:00 +0000
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Linux
Linux linux Kernel |
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Linux
Linux linux Kernel |
Wed, 20 Aug 2025 00:30:00 +0000
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threat_severity
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cvssV3_1
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Tue, 19 Aug 2025 17:15:00 +0000
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Description | In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Fix UAF in panthor_gem_create_with_handle() debugfs code The object is potentially already gone after the drm_gem_object_put(). In general the object should be fully constructed before calling drm_gem_handle_create(), except the debugfs tracking uses a separate lock and list and separate flag to denotate whether the object is actually initialized. Since I'm touching this all anyway simplify this by only adding the object to the debugfs when it's ready for that, which allows us to delete that separate flag. panthor_gem_debugfs_bo_rm() already checks whether we've actually been added to the list or this is some error path cleanup. v2: Fix build issues for !CONFIG_DEBUGFS (Adrián) v3: Add linebreak and remove outdated comment (Liviu) | |
Title | drm/panthor: Fix UAF in panthor_gem_create_with_handle() debugfs code | |
References |
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-08-19T17:03:26.445Z
Reserved: 2025-04-16T04:51:24.028Z
Link: CVE-2025-38596

No data.

Status : Awaiting Analysis
Published: 2025-08-19T17:15:37.480
Modified: 2025-08-20T14:40:17.713
Link: CVE-2025-38596
