Memory leak in Linux kernel - CVE-2021-47043
Published: June 10, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU91660
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-47043
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the venus_probe() and venus_remove() functions in drivers/media/platform/qcom/venus/core.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/00b68a7478343afdf83f30c43e64db5296057030
- https://git.kernel.org/stable/c/940d01eceb3a7866fbfca136a55a5625fc75a565
- https://git.kernel.org/stable/c/711acdf0228dc71601247f28b56f13e850e395c8
- https://git.kernel.org/stable/c/5a465c5391a856a0c1e9554964d660676c35d1b2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.37
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.21
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13