Input validation error in Linux kernel - CVE-2022-49318
Published: February 27, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104927
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-2022-49318
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 __is_bitmap_valid() and f2fs_is_valid_blkaddr() functions in fs/f2fs/checkpoint.c. A local user can perform a denial of service (DoS) attack.
Affected software
Linux kernel
How to mitigate CVE-2022-49318
Install update from vendor's website.
Linux kernel - addressed in versions 5.4.198, 5.10.122, 5.15.47, 5.17.15, 5.18.4, 5.19
External References
- https://git.kernel.org/stable/c/0a7a1fc7e71eecf2e5053a6c312c9f0dcbb9b8fd
- https://git.kernel.org/stable/c/32bea51fe4c6e92c00403739f7547c89219bea88
- https://git.kernel.org/stable/c/8c62c5e26345c34d199b4b8c8e69255ba3d0e751
- https://git.kernel.org/stable/c/99c09b298e47ebbe345a6da9f268b32a6b0f4582
- https://git.kernel.org/stable/c/cd6374af36cc548464d8c47a93fdba7303bb82a4
- https://git.kernel.org/stable/c/dc2f78e2d4cc844a1458653d57ce1b54d4a29f21
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.122
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.47
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.198