Memory leak in Linux kernel - CVE-2022-49312
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104246
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-49312
CWE-ID: CWE-401
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 memory leak within the r8712_usb_dvobj_init(), r871x_dev_unload() and r871xu_dev_remove() functions in drivers/staging/rtl8712/usb_intf.c, within the r8712_free_drv_sw() function in drivers/staging/rtl8712/os_intfs.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-49312
Install update from vendor's website.
Sources
- https://git.kernel.org/stable/c/205e039fead72e87ad2838f5e649a4c4834f648b
- https://git.kernel.org/stable/c/5a89a92efc342dd7c44b6056da87debc598f9c73
- https://git.kernel.org/stable/c/7288ff561de650d4139fab80e9cb0da9b5b32434
- https://git.kernel.org/stable/c/8eb42d6d10f8fe509117859defddf9e72b4fa4d0
- https://git.kernel.org/stable/c/a2882b8baad068d21c99fb2ab5a85a2bdbd5b834
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.4