# CVE-2021-47190: linux: In the Linux kernel, the following vulnerability has been resolved:  perf bpf: Avoid memory leak from perf_env__inser...

CVE-2021-47190 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47190, released April 10, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-47190
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0023
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 10, 2024

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.15.5-1 | [DEBIAN-CVE-2021-47190](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47190.md) | Apr 10, 2024 |
| Linux | linux Debian 13.5 (trixie) | 5.15.5-1 | [DEBIAN-CVE-2021-47190](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47190.md) | Apr 10, 2024 |
| Linux | linux Debian 14 | 5.15.5-1 | [DEBIAN-CVE-2021-47190](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47190.md) | Apr 10, 2024 |

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