#VU115918 NULL pointer dereference in Linux kernel - CVE-2022-50409
Published: September 19, 2025 / Updated: September 22, 2025
Vulnerability identifier: #VU115918
Vulnerability risk: Low
CVSSv4.0: 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-2022-50409
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the sk_stream_wait_memory() function in net/core/stream.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/124b7c773271f06af5a2cea694b283cdb5275cf5
- https://git.kernel.org/stable/c/1f48ab20b80f39c0d85119243109d02946fde6d5
- https://git.kernel.org/stable/c/35f5e70bdfa7432762ac4ffa75e5a7574ac5563e
- https://git.kernel.org/stable/c/3f8ef65af927db247418d4e1db49164d7a158fc5
- https://git.kernel.org/stable/c/435f5aa4421782af197b98d8525263977be4af5c
- https://git.kernel.org/stable/c/5fe03917bb017d9af68a95f989f1c122eebc69a6
- https://git.kernel.org/stable/c/65029aaedd15d9fe5ea1a899134e236d83f627bb
- https://git.kernel.org/stable/c/a76462dbdd8bddcbeec9463bc9e54e509b860762
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.220