SB20250226506 - Improper locking in Linux kernel block driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB20250226506
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) Improper locking (CVE-ID: CVE-2022-49297)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper locking within the nbd_start_device_ioctl() function in drivers/block/nbd.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/09dadb5985023e27d4740ebd17e6fea4640110e5
- https://git.kernel.org/stable/c/141318e62db87105b0103fccc59c9c5940da248d
- https://git.kernel.org/stable/c/54b06dc2a206b4d67349bb56b92d4bd32700b7b1
- https://git.kernel.org/stable/c/62d227f67a8c25d5e16f40e5290607f9306d2188
- https://git.kernel.org/stable/c/67e403136a0e1a55fef6a05f103a3979a39ad3fd
- https://git.kernel.org/stable/c/69893d6d7f5c10d8306c1b5fc64b71efc91aa6cd
- https://git.kernel.org/stable/c/c4ba982bd5084fa659ef518aaf159e4dab02ecda
- https://git.kernel.org/stable/c/f72df77600a43e59b3189e53b47f8685739867d3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.122