SB20240711199 - Input validation error in Linux kernel sunrpc xprtrdma
Published: July 11, 2024 Updated: May 13, 2025
Security Bulletin ID
SB20240711199
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2021-47001)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the rpcrdma_xprt_connect() and rpcrdma_post_sends() functions in net/sunrpc/xprtrdma/verbs.c, within the rpcrdma_reply_handler() 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.
References
- https://git.kernel.org/stable/c/eddae8be7944096419c2ae29477a45f767d0fcd4
- https://git.kernel.org/stable/c/8834ecb5df22b7ff3c9b0deba7726579bb613f95
- https://git.kernel.org/stable/c/19b5fa9489b5706bc878c3a522a7f771079e2fa0
- https://git.kernel.org/stable/c/35d8b10a25884050bb3b0149b62c3818ec59f77c
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.38
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.22
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13