CVE-2021-47190
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedApr 10, 2024
First seenApr 10, 2024
How to fix
Update
- linux linux_kernel5.4.162, 5.10.82, 5.15.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.1 ≤ v < 5.4.162, 5.5 ≤ v < 5.10.82, 5.11 ≤ v < 5.15.5 | 5.4.162, 5.10.82, 5.15.5 |
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