CVE-2021-47177
iommu/vt-d: Fix sysfs leak in alloc_iommu()
Description
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix sysfs leak in alloc_iommu() iommu_device_sysfs_add() is called before, so is has to be cleaned on subsequent errors.
INFO
Published Date :
March 25, 2024, 10:15 a.m.
Last Modified :
March 17, 2025, 3:20 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the Linux kernel to a patched version.
- Reboot the system after the update.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-47177.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-47177 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-47177
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-47177 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-47177 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 17, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-401 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 from (excluding) 5.12.9 *cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 from (excluding) 5.10.42 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 from (excluding) 5.4.124 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.11 from (excluding) 4.14.235 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 from (excluding) 4.19.193 Added Reference Type CVE: https://git.kernel.org/stable/c/044bbe8b92ab4e542de7f6c93c88ea65cccd8e29 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/044bbe8b92ab4e542de7f6c93c88ea65cccd8e29 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/0ee74d5a48635c848c20f152d0d488bf84641304 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/0ee74d5a48635c848c20f152d0d488bf84641304 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/22da9f4978381a99f1abaeaf6c9b83be6ab5ddd8 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/22da9f4978381a99f1abaeaf6c9b83be6ab5ddd8 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/2ec5e9bb6b0560c90d315559c28a99723c80b996 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/2ec5e9bb6b0560c90d315559c28a99723c80b996 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/ca466561eef36d1ec657673e3944eb6340bddb5b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ca466561eef36d1ec657673e3944eb6340bddb5b Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/f01134321d04f47c718bb41b799bcdeda27873d2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f01134321d04f47c718bb41b799bcdeda27873d2 Types: Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/044bbe8b92ab4e542de7f6c93c88ea65cccd8e29 Added Reference https://git.kernel.org/stable/c/0ee74d5a48635c848c20f152d0d488bf84641304 Added Reference https://git.kernel.org/stable/c/22da9f4978381a99f1abaeaf6c9b83be6ab5ddd8 Added Reference https://git.kernel.org/stable/c/2ec5e9bb6b0560c90d315559c28a99723c80b996 Added Reference https://git.kernel.org/stable/c/ca466561eef36d1ec657673e3944eb6340bddb5b Added Reference https://git.kernel.org/stable/c/f01134321d04f47c718bb41b799bcdeda27873d2 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 25, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix sysfs leak in alloc_iommu() iommu_device_sysfs_add() is called before, so is has to be cleaned on subsequent errors. Added Reference kernel.org https://git.kernel.org/stable/c/22da9f4978381a99f1abaeaf6c9b83be6ab5ddd8 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/2ec5e9bb6b0560c90d315559c28a99723c80b996 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/044bbe8b92ab4e542de7f6c93c88ea65cccd8e29 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f01134321d04f47c718bb41b799bcdeda27873d2 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ca466561eef36d1ec657673e3944eb6340bddb5b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/0ee74d5a48635c848c20f152d0d488bf84641304 [No types assigned]