#VU104558 NULL pointer dereference in Linux kernel - CVE-2022-49321
Published: February 26, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU104558
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-2022-49321
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 rpcrdma_is_bcall() function in net/sunrpc/xprtrdma/rpc_rdma.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/11270e7ca268e8d61b5d9e5c3a54bd1550642c9c
- https://git.kernel.org/stable/c/8dbae5affbdbf524b48000f9d357925bb001e5f4
- https://git.kernel.org/stable/c/8e3943c50764dc7c5f25911970c3ff062ec1f18c
- https://git.kernel.org/stable/c/90c4f73104016748533a5707ecd15930fbeff402
- https://git.kernel.org/stable/c/91784f3d77b73885e1b2e6b59d3cbf0de0a1126a
- https://git.kernel.org/stable/c/998d35a2aff4b81a1c784f3aa45cd3afff6814c1
- https://git.kernel.org/stable/c/a3fc8051ee061e31db13e2fe011e8e0b71a7f815
- https://git.kernel.org/stable/c/da99331fa62131a38a0947a8204c5208de7b0454
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.198