CVEvulnerability
CVE-2021-47071
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2024-03-01
- 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-401
Description
In the Linux kernel, the following vulnerability has been resolved:
uio_hv_generic: Fix a memory leak in error handling paths
If 'vmbus_establish_gpadl()' fails, the (recv|send)_gpadl will not be
updated and 'hv_uio_cleanup()' in the error handling path will not be
able to free the corresponding buffer.
In such a case, we need to free the buffer explicitly.
Affected configurations
• linux linux kernel (>= 4.20 < 5.4.122)
• linux linux kernel (>= 5.5 < 5.10.40)
• linux linux kernel (>= 5.11 < 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/3ee098f96b8b6c1a98f7f97915f8873164e6af9d Patch
- https://git.kernel.org/stable/c/53486c467e356e06aa37047c984fccd64d78c827 Patch
- https://git.kernel.org/stable/c/cdd91637d4ef33e2be19a8e16e72e7d00c996d76 Patch
- https://git.kernel.org/stable/c/d84b5e912212b05f6b5bde9f682046accfbe0354 Patch
- https://git.kernel.org/stable/c/3ee098f96b8b6c1a98f7f97915f8873164e6af9d Patch
- https://git.kernel.org/stable/c/53486c467e356e06aa37047c984fccd64d78c827 Patch
- https://git.kernel.org/stable/c/cdd91637d4ef33e2be19a8e16e72e7d00c996d76 Patch
- https://git.kernel.org/stable/c/d84b5e912212b05f6b5bde9f682046accfbe0354 Patch