SB2024053072 - Memory leak in Linux kernel phy driver
Published: May 30, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024053072
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-2021-47416)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the __mdiobus_register() function in drivers/net/phy/mdio_bus.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/25e9f88c7e3cc35f5e3d3db199660d28a15df639
- https://git.kernel.org/stable/c/2250392d930bd0d989f24d355d6355b0150256e7
- https://git.kernel.org/stable/c/f4f502a04ee1e543825af78f47eb7785015cd9f6
- https://git.kernel.org/stable/c/2397b9e118721292429fea8807a698e71b94795f
- https://git.kernel.org/stable/c/414bb4ead1362ef2c8592db723c017258f213988
- https://git.kernel.org/stable/c/0d2dd40a7be61b89a7c99dae8ee96389d27b413a
- https://git.kernel.org/stable/c/064c2616234a7394867c924b5c1303974f3a4f4d
- https://git.kernel.org/stable/c/ca6e11c337daf7925ff8a2aac8e84490a8691905
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.251
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.211
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.289
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.287
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.73
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.12
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.153