CVE-2021-47190
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-47190
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47190.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-47190
- Downstream
- Published
- 2024-04-10T19:15:47Z
- Modified
- 2025-08-09T19:01:27Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
perf bpf: Avoid memory leak from perfenvinsertbtf()
perfenvinsertbtf() 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 perfenvfetchbtf. This doesn't affect anything as the result is never checked.
- References