virtio-gpu: fix a missing check to avoid NULL dereference
In the Linux kernel, the following vulnerability has been resolved: virtio-gpu: fix a missing check to avoid NULL dereference 'cache_ent' could be set NULL inside virtio_gpu_cmd_get_capset() and it will lead to a NULL dereference by a lately use of it (i.e., ptr = cache_ent->caps_cache). Fix it with a NULL check. [ kraxel: minor codestyle fixup ]
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: virtio-gpu: fix a missing check to avoid NULL dereference 'cache_ent' could be set NULL inside virtio_gpu_cmd_get_capset() and it will lead to a NULL dereference by a lately use of it (i.e., ptr = cache_ent->caps_cache). Fix it with a NULL check. [ kraxel: minor codestyle fixup ]
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/259773fc874258606c0121767a4a27466ff337eb
- https://git.kernel.org/stable/c/367882a5a9448b5e1ba756125308092d614cb96c
- https://git.kernel.org/stable/c/39caef09666c1d8274abf9472c72bcac236dc5fb
- https://git.kernel.org/stable/c/adbdd21983fa292e53aec3eab97306b2961ea887
- https://git.kernel.org/stable/c/bd63f11f4c3c46afec07d821f74736161ff6e526
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50181.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-50181