Vulnerability-Lookup

GHSA-4JV7-XRM9-5FJR

Vulnerability from github – Published: 2024-04-10 21:30 – Updated: 2025-01-07 18:30

Details

In the Linux kernel, the following vulnerability has been resolved:

perf bpf: Avoid memory leak from perf_env__insert_btf()

perf_env__insert_btf() doesn't insert if a duplicate BTF id is encountered and this causes a memory leak. Modify the function to return a success/error value and then free the memory if insertion didn't happen.

v2. Adds a return -1 when the insertion error occurs in perf_env__fetch_btf. This doesn't affect anything as the result is never checked.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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  "affected": [],
  "aliases": [
    "CVE-2021-47190"
  ],
  "database_specific": {
    "cwe_ids": [
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-10T19:15:47Z",
    "severity": "MODERATE"
  },
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  "id": "GHSA-4jv7-xrm9-5fjr",
  "modified": "2025-01-07T18:30:41Z",
  "published": "2024-04-10T21:30:31Z",
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CVE-2021-47190 (GCVE-0-2021-47190)

Vulnerability from cvelistv5 – Published: 2024-04-10 18:56 – Updated: 2026-05-11 13:49

Title

perf bpf: Avoid memory leak from perf_env__insert_btf()

Summary

In the Linux kernel, the following vulnerability has been resolved: perf bpf: Avoid memory leak from perf_env__insert_btf() perf_env__insert_btf() doesn't insert if a duplicate BTF id is encountered and this causes a memory leak. Modify the function to return a success/error value and then free the memory if insertion didn't happen. v2. Adds a return -1 when the insertion error occurs in perf_env__fetch_btf. This doesn't affect anything as the result is never checked.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:50 UTC

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/642fc22210a5e59d4…
https://git.kernel.org/stable/c/11589d3144bc4e272…
https://git.kernel.org/stable/c/ab7c3d8d81c511ddf…
https://git.kernel.org/stable/c/4924b1f7c46711762…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 3792cb2ff43b1b193136a03ce1336462a827d792 , < 642fc22210a5e59d40b1e4d56d21ec3effd401f2 (git) Affected: 3792cb2ff43b1b193136a03ce1336462a827d792 , < 11589d3144bc4e272e0aae46ce8156162e99babc (git) Affected: 3792cb2ff43b1b193136a03ce1336462a827d792 , < ab7c3d8d81c511ddfb27823fb07081c96422b56e (git) Affected: 3792cb2ff43b1b193136a03ce1336462a827d792 , < 4924b1f7c46711762fd0e65c135ccfbcfd6ded1f (git)
Linux	Linux	Affected: 5.1 Unaffected: 0 , < 5.1 (semver) Unaffected: 5.4.162 , ≤ 5.4.* (semver) Unaffected: 5.10.82 , ≤ 5.10.* (semver) Unaffected: 5.15.5 , ≤ 5.15.* (semver) Unaffected: 5.16 , ≤ * (original_commit_for_fix)

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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