CVE-2021-47657

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

VendorProductVersions
LinuxLinux>= 377f8331d0565e6f71ba081c894029a92d0c7e77, < b094fece3810c71ceee6f0921676cb65d4e68c5a; >= 377f8331d0565e6f71ba081c894029a92d0c7e77, < ac92b474eeeed75b8660374ba1d129a121c09da8; >= 377f8331d0565e6f71ba081c894029a92d0c7e77, < abc9ad36df16e27ac1c665085157f1a082d39bac; >= 377f8331d0565e6f71ba081c894029a92d0c7e77, < 6b79f96f4a23846516e5e6e4dd37fc06f43a60dd; 244dbb4abe123779ec30e7c6ca283a681aba5c94; 1016c0f62f73d5d2c3a5d1ad1e1fb0cdce1993ae; >= 5.11.20, < 5.12; >= 5.12.3, < 5.13
LinuxLinux5.13

References

Timeline

Published
Feb 26, 2025
Last modified
Jun 17, 2026
NVD status
Modified

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