drm/virtio: Fix GEM handle creation UAF
Userspace can guess the handle value and try to race GEM object creation
with handle close, resulting in a use-after-free if we dereference the
object after dropping the handle's reference. For that reason, dropping
the handle's reference must be done *after* we are done dereferencing
the object.
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No vendor fix or workaround currently provided.
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Tracking
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Wed, 11 Sep 2024 16:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux linux Kernel |
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| Weaknesses | CWE-416 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:* |
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| Vendors & Products |
Linux
Linux linux Kernel |
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| Metrics |
cvssV3_1
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cvssV3_1
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Wed, 11 Sep 2024 13:30:00 +0000
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| Metrics |
ssvc
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Wed, 21 Aug 2024 21:00:00 +0000
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| References |
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| Metrics |
threat_severity
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cvssV3_1
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Wed, 21 Aug 2024 06:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Fix GEM handle creation UAF Userspace can guess the handle value and try to race GEM object creation with handle close, resulting in a use-after-free if we dereference the object after dropping the handle's reference. For that reason, dropping the handle's reference must be done *after* we are done dereferencing the object. | |
| Title | drm/virtio: Fix GEM handle creation UAF | |
| References |
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-05-11T18:49:20.227Z
Reserved: 2024-08-21T06:06:23.291Z
Link: CVE-2022-48899
Updated: 2024-09-11T12:42:19.017Z
Status : Analyzed
Published: 2024-08-21T07:15:05.810
Modified: 2024-09-11T16:22:26.583
Link: CVE-2022-48899
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