CVEvulnerability
CVE-2021-47070
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2024-03-01
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-401
Description
In the Linux kernel, the following vulnerability has been resolved:
uio_hv_generic: Fix another memory leak in error handling paths
Memory allocated by 'vmbus_alloc_ring()' at the beginning of the probe
function is never freed in the error handling path.
Add the missing 'vmbus_free_ring()' call.
Note that it is already freed in the .remove function.
Affected configurations
• linux linux kernel (>= 4.20 < 5.12.7)
• linux linux kernel 5.13
Related
Weakness · CWE (1)
- CWE-401 Missing Release of Memory after Effective Lifetime weakness
References
- https://git.kernel.org/stable/c/0b0226be3a52dadd965644bc52a807961c2c26df Patch
- https://git.kernel.org/stable/c/261bbd90cc53d2835343f056770156cf1e82cf03 git.kernel.org
- https://git.kernel.org/stable/c/5f59240cf25b2f7a0fdffc2701482a70310fec07 Patch
- https://git.kernel.org/stable/c/0b0226be3a52dadd965644bc52a807961c2c26df Patch
- https://git.kernel.org/stable/c/5f59240cf25b2f7a0fdffc2701482a70310fec07 Patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html lists.debian.org