SB2025022658 - Memory leak in Linux kernel block driver
Published: February 26, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025022658
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) Memory leak (CVE-ID: CVE-2022-49300)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the nbd_alloc_config(), nbd_open(), nbd_put() and nbd_cleanup() functions 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/122e4adaff2439f1cc18cc7e931980fa7560df5c
- https://git.kernel.org/stable/c/165cf2e0019fa6cedc75b456490c41494c34abb4
- https://git.kernel.org/stable/c/2573f2375b64280be977431701ed5d33b75b9ad0
- https://git.kernel.org/stable/c/2888fa41985f93ed0a6837cfbb06bcbfd7fa2314
- https://git.kernel.org/stable/c/71c142f910da44421213ade601bcbd23ceae19fa
- https://git.kernel.org/stable/c/8a7da4ced236ce6637fe70f14ca18e718d4bf9e9
- https://git.kernel.org/stable/c/c55b2b983b0fa012942c3eb16384b2b722caa810
- https://git.kernel.org/stable/c/d09525720dd5201756f698bee1076de9aefd4602
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.4