Memory leak in Linux kernel - CVE-2022-49741

Vulnerability identifier: #VU106147

CSH Severity: Low

CVSS v4: 6.8 [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]

CVE-ID: CVE-2022-49741

CWE-ID: CWE-401

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the ufx_usb_probe() function in drivers/video/fbdev/smscufx.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
kernel-rt
kernel-rt-debugsource
kernel-rt-debuginfo
kernel-source-rt

Install update from vendor's website.

Linux kernel - addressed in versions 5.4.232, 5.10.168, 5.15.93, 6.1.11, 6.2
kernel-rt - update to 5.14.21-150400.15.118.1
kernel-rt-debugsource - update to 5.14.21-150400.15.118.1
kernel-rt-debuginfo - update to 5.14.21-150400.15.118.1
kernel-source-rt - update to 5.14.21-150400.15.118.1

• https://git.kernel.org/stable/c/1b4c08844628dfc8d72d3f51b657f2a5e63b7b4b
• https://git.kernel.org/stable/c/3931014367ef31d26af65386a4ca496f50f0cfdf
• https://git.kernel.org/stable/c/3b3d3127f5b4291ae4caaf50f7b66089ad600480
• https://git.kernel.org/stable/c/64fa364ad3245508d393e16ed4886f92d7eb423c
• https://git.kernel.org/stable/c/b76449ee75e21acfe9fa4c653d8598f191ed7d68
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.168
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.93
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.232
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.11
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2

• Memory leak in Linux kernel video fbdev driver
• SUSE update for the Linux Kernel