CVE-2021-47190 (GCVE-0-2021-47190)

Vulnerability from cvelistv5 – Published: 2024-04-10 18:56 – Updated: 2025-05-04 07:06
VLAI?
Title
perf bpf: Avoid memory leak from perf_env__insert_btf()
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 3792cb2ff43b1b193136a03ce1336462a827d792 , < 642fc22210a5e59d40b1e4d56d21ec3effd401f2 (git)
Affected: 3792cb2ff43b1b193136a03ce1336462a827d792 , < 11589d3144bc4e272e0aae46ce8156162e99babc (git)
Affected: 3792cb2ff43b1b193136a03ce1336462a827d792 , < ab7c3d8d81c511ddfb27823fb07081c96422b56e (git)
Affected: 3792cb2ff43b1b193136a03ce1336462a827d792 , < 4924b1f7c46711762fd0e65c135ccfbcfd6ded1f (git)
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    Linux Linux Affected: 5.1
Unaffected: 0 , < 5.1 (semver)
Unaffected: 5.4.162 , ≤ 5.4.* (semver)
Unaffected: 5.10.82 , ≤ 5.10.* (semver)
Unaffected: 5.15.5 , ≤ 5.15.* (semver)
Unaffected: 5.16 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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