Vulnerability Details : CVE-2021-47332
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.
Products affected by CVE-2021-47332
- 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:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-47332
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 5 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-47332
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST | 2024-12-24 |
CWE ids for CVE-2021-47332
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-47332
-
https://git.kernel.org/stable/c/cae0cf651adccee2c3f376e78f30fbd788d0829f
ALSA: usx2y: Don't call free_pages_exact() with NULL address - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/82e5ee742fdd8874fe996181b87fafe1eb5f1196
ALSA: usx2y: Don't call free_pages_exact() with NULL address - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/7d7f30cf182e55023fa8fde4c084b2d37c6be69d
ALSA: usx2y: Don't call free_pages_exact() with NULL address - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/88262229b778f4f7a896da828d966f94dcb35d19
ALSA: usx2y: Don't call free_pages_exact() with NULL address - kernel/git/stable/linux.git - Linux kernel stable treePatch
-
https://git.kernel.org/stable/c/bee295f5e03510252d18b25cc1d26230256eb87a
ALSA: usx2y: Don't call free_pages_exact() with NULL address - kernel/git/stable/linux.git - Linux kernel stable treePatch
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