Out-of-bounds read in Linux kernel - CVE-2022-48871
Published: August 21, 2024 / Updated: May 12, 2025
Vulnerability identifier: #VU96338
CSH Severity: Low
CVSS v4.0: 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-2022-48871
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the get_tx_fifo_size() and qcom_geni_serial_port_setup() functions in drivers/tty/serial/qcom_geni_serial.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-48871
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/894681682dbefdad917b88f86cde1069140a047a
- https://git.kernel.org/stable/c/cb53a3366eb28fed67850c80afa52075bb71a38a
- https://git.kernel.org/stable/c/fd524ca7fe45b8a06dca2dd546d62684a9768f95
- https://git.kernel.org/stable/c/b8caf69a6946e18ffebad49847e258f5b6d52ac2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.165
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.90
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2