SB2024053034 - Memory leak in Linux kernel perf
Published: May 30, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024053034
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Memory leak (CVE-ID: CVE-2021-47543)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the fetch_kernel_version() function in tools/perf/util/util.c, within the report__browse_hists() function in tools/perf/builtin-report.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/df5990db088d4c7fea9a2f9b8195a7859e1768c4
- https://git.kernel.org/stable/c/ff061b5bda73c4f785b4703eeb0848fd99e5608a
- https://git.kernel.org/stable/c/71e284dcebecb9fd204ff11097469cc547723ad1
- https://git.kernel.org/stable/c/d9fc706108c15f8bc2d4ccccf8e50f74830fabd9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.84
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.164