Vulnerabilities > CVE-2021-47332 - NULL Pointer Dereference vulnerability in Linux Kernel
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: usx2y: Don't call free_pages_exact() with NULL address Unlike some other functions, we can't pass NULL pointer to free_pages_exact(). Add a proper NULL check for avoiding possible Oops.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
References
- https://git.kernel.org/stable/c/7d7f30cf182e55023fa8fde4c084b2d37c6be69d
- https://git.kernel.org/stable/c/7d7f30cf182e55023fa8fde4c084b2d37c6be69d
- https://git.kernel.org/stable/c/82e5ee742fdd8874fe996181b87fafe1eb5f1196
- https://git.kernel.org/stable/c/82e5ee742fdd8874fe996181b87fafe1eb5f1196
- https://git.kernel.org/stable/c/88262229b778f4f7a896da828d966f94dcb35d19
- https://git.kernel.org/stable/c/88262229b778f4f7a896da828d966f94dcb35d19
- https://git.kernel.org/stable/c/bee295f5e03510252d18b25cc1d26230256eb87a
- https://git.kernel.org/stable/c/bee295f5e03510252d18b25cc1d26230256eb87a
- https://git.kernel.org/stable/c/cae0cf651adccee2c3f376e78f30fbd788d0829f
- https://git.kernel.org/stable/c/cae0cf651adccee2c3f376e78f30fbd788d0829f