Improper locking in Linux kernel - CVE-2022-49998
Published: June 20, 2025 / Updated: June 21, 2025
Vulnerability identifier: #VU111588
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-2022-49998
CWE-ID: CWE-667
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 improper locking within the rxrpc_wait_for_tx_window_intr(), rxrpc_send_data(), rxrpc_do_sendmsg() and rxrpc_kernel_send_data() functions in net/rxrpc/sendmsg.c, within the rxrpc_new_client_call() function in net/rxrpc/call_object.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2022-49998
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/091dc91e119fdd61432347231724f4e861c6b465
- https://git.kernel.org/stable/c/2bc769b8edb158be7379d15f36e23d66cf850053
- https://git.kernel.org/stable/c/79e2ca7aa96e80961828ab6312264633b66183cc
- https://git.kernel.org/stable/c/b0f571ecd7943423c25947439045f0d352ca3dbf
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.140
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.64
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.6
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0