SB2025100451 - Memory leak in Linux kernel core steering driver
Published: October 4, 2025 Updated: October 27, 2025
Security Bulletin ID
SB2025100451
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-2023-53546)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the mlx5dr_cmd_create_reformat_ctx() function in drivers/net/ethernet/mellanox/mlx5/core/steering/dr_cmd.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/00cecb0a8f9e7a21754d5ad85813ab6b47b3308f
- https://git.kernel.org/stable/c/165159854757dbae0dfd1812b27051da35aa6223
- https://git.kernel.org/stable/c/3169c3854397f3070a63b1b772db16dcb8cba7b4
- https://git.kernel.org/stable/c/5dd77585dd9d0e03dd1bceb95f0269a7eaf6b936
- https://git.kernel.org/stable/c/622d71d99124e69f7bf2e2b7a89f5f444a24d235
- https://git.kernel.org/stable/c/800d8c96bf997da5eb76ccf8d88795c4231c83fb
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.253