Tracker / CVE-2021-47190
CVE-2021-47190
Medium 5.5
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.
Affected products and versions
| linux | linux_kernel · 5.1 → 5.4.162 |
|---|---|
| linux | linux_kernel · 5.11 → 5.15.5 |
| linux | linux_kernel · 5.5 → 5.10.82 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.