Input validation error in Linux kernel - CVE-2022-49991
Published: June 20, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111696
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-2022-49991
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the f2fs_new_node_page() function in fs/f2fs/node.c. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
kernel (Red Hat package)
kernel-rt (Red Hat package)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
kernel (Red Hat package)
kernel-rt (Red Hat package)
How to mitigate CVE-2022-49991
Install update from vendor's repository.
Linux kernel - update to 5.15.65
kernel (Red Hat package) - update to 5.14.0-70.144.1.el9_0
kernel-rt (Red Hat package) - update to 5.14.0-70.144.1.rt21.216.el9_0
kernel (Red Hat package) - update to 5.14.0-70.144.1.el9_0
kernel-rt (Red Hat package) - update to 5.14.0-70.144.1.rt21.216.el9_0