Security Advisory
CVE-2021-47190
CVE vulnerability detail — eXtreme Datacenter Security Operations
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() doesnt 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 didnt happen. v2. Adds a return -1 when the insertion error occurs in perf_env__fetch_btf. This doesnt affect anything as the result is never checked.