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I. Basic Information for CVE-2021-47657
Vulnerability Information

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Vulnerability Title
drm/virtio: Ensure that objs is not NULL in virtio_gpu_array_put_free()
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞,该漏洞源于virtio_gpu_array_put_free函数中未检查objs为空。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
LinuxLinux 377f8331d0565e6f71ba081c894029a92d0c7e77 ~ b094fece3810c71ceee6f0921676cb65d4e68c5a -
LinuxLinux 5.13 -
II. Public POCs for CVE-2021-47657
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III. Intelligence Information for CVE-2021-47657
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IV. Related Vulnerabilities
V. Comments for CVE-2021-47657

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