CVE-2021-47190
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
perf bpf: Avoid memory leak from perf_env__insert_btf()
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3792cb2ff43b1b193136a03ce1336462a827d792 | affected | git | 642fc22210a5e59d40b1e4d56d21ec3effd401f2 | Unavailable | None listed |
| 3792cb2ff43b1b193136a03ce1336462a827d792 | affected | git | 11589d3144bc4e272e0aae46ce8156162e99babc | Unavailable | None listed |
| 3792cb2ff43b1b193136a03ce1336462a827d792 | affected | git | ab7c3d8d81c511ddfb27823fb07081c96422b56e | Unavailable | None listed |
| 3792cb2ff43b1b193136a03ce1336462a827d792 | affected | git | 4924b1f7c46711762fd0e65c135ccfbcfd6ded1f | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.1 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.1 | Unavailable | None listed |
| 5.4.162 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.82 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.5 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.16 | unaffected | original_commit_for_fix | Unavailable | * | None listed |