CVE-2021-47657

In the Linux kernel, the following vulnerability has been resolved: drm/virtio: Ensure that objs is not NULL in virtio_gpu_array_put_free() If virtio_gpu_object_shmem_init() fails (e.g. due to fault injection, as it happened in the bug report by syzbot), virtio_gpu_array_put_free() could be called with objs equal to NULL. Ensure that objs is not NULL in virtio_gpu_array_put_free(), or otherwise return from the function.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/6b79f96f4a23846516e5e6e4dd37fc06f43a60dd	Patch
https://git.kernel.org/stable/c/abc9ad36df16e27ac1c665085157f1a082d39bac	Patch
https://git.kernel.org/stable/c/ac92b474eeeed75b8660374ba1d129a121c09da8	Patch
https://git.kernel.org/stable/c/b094fece3810c71ceee6f0921676cb65d4e68c5a	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2025-02-26 06:37

Updated : 2025-10-01 20:15

NVD link : CVE-2021-47657

Mitre link : CVE-2021-47657

CVE.ORG link : CVE-2021-47657

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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