CVE-2022-48899

low-risk
Published 2024-08-21

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.

Do I need to act?

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0.01% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10 Medium
LOCAL / HIGH complexity

Affected Products (4)

Affected Vendors

Linux

References (6)

Patch https://git.kernel.org/stable/c/011ecdbcd520c90c344b872ca6b4821f7783b2f8
Patch https://git.kernel.org/stable/c/19ec87d06acfab2313ee82b2a689bf0c154e57ea
Patch https://git.kernel.org/stable/c/52531258318ed59a2dc5a43df2eaf0eb1d65438e
Patch https://git.kernel.org/stable/c/68bcd063857075d2f9edfed6024387ac377923e2
Patch https://git.kernel.org/stable/c/adc48e5e408afbb01d261bd303fd9fbbbaa3e317
Patch https://git.kernel.org/stable/c/d01d6d2b06c0d8390adf8f3ba08aa60b5642ef73
22
/ 100
low-risk
Severity 12/34 · Low
Exploitability 0/34 · Minimal
Exposure 10/34 · Low