CVEvulnerability
CVE-2021-47332
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2024-05-21
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
Description
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.
Affected configurations
• linux linux kernel (< 5.4.134)
• linux linux kernel (>= 5.5 < 5.10.52)
• linux linux kernel (>= 5.11 < 5.12.19)
• linux linux kernel (>= 5.13 < 5.13.4)
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://git.kernel.org/stable/c/7d7f30cf182e55023fa8fde4c084b2d37c6be69d Patch
- https://git.kernel.org/stable/c/82e5ee742fdd8874fe996181b87fafe1eb5f1196 Patch
- https://git.kernel.org/stable/c/88262229b778f4f7a896da828d966f94dcb35d19 Patch
- https://git.kernel.org/stable/c/bee295f5e03510252d18b25cc1d26230256eb87a Patch
- https://git.kernel.org/stable/c/cae0cf651adccee2c3f376e78f30fbd788d0829f Patch
- https://git.kernel.org/stable/c/7d7f30cf182e55023fa8fde4c084b2d37c6be69d Patch
- https://git.kernel.org/stable/c/82e5ee742fdd8874fe996181b87fafe1eb5f1196 Patch
- https://git.kernel.org/stable/c/88262229b778f4f7a896da828d966f94dcb35d19 Patch
- https://git.kernel.org/stable/c/bee295f5e03510252d18b25cc1d26230256eb87a Patch
- https://git.kernel.org/stable/c/cae0cf651adccee2c3f376e78f30fbd788d0829f Patch