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CVE-2021-47190

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CVE-2021-47190

Published: Apr 10, 2024

Modified: May 11, 2026

PUBLISHED

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.

VendorProductVersions

Linux

Linux

affected
3792cb2ff43b1b193136a03ce1336462a827d792 - < 642fc22210a5e59d40b1e4d56d21ec3effd401f2
affected
3792cb2ff43b1b193136a03ce1336462a827d792 - < 11589d3144bc4e272e0aae46ce8156162e99babc
affected
3792cb2ff43b1b193136a03ce1336462a827d792 - < ab7c3d8d81c511ddfb27823fb07081c96422b56e
affected
3792cb2ff43b1b193136a03ce1336462a827d792 - < 4924b1f7c46711762fd0e65c135ccfbcfd6ded1f

Linux

Linux

affected
5.1
unaffected
0 - < 5.1
unaffected
5.4.162 - <= 5.4.*
unaffected
5.10.82 - <= 5.10.*
unaffected
5.15.5 - <= 5.15.*

+1 more versions

References

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