SB20251230107 - Memory leak in Linux kernel mmc host driver
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230107
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-2022-50886)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the toshsd_probe() function in drivers/mmc/host/toshsd.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/3329e7b7132ca727263fb0ee214cf52cc6dcaaad
- https://git.kernel.org/stable/c/34ae492f8d172f0bd193c24cad588b35419ea47a
- https://git.kernel.org/stable/c/3dbb69a0242c31ea4c9eee22b1c41b515fe509a0
- https://git.kernel.org/stable/c/4f6cb1c685f9e20a4a9fa565e442f5af4dad70ff
- https://git.kernel.org/stable/c/6444079767b68b1fbed0e7668081146e80dcb719
- https://git.kernel.org/stable/c/647e370dd0ef7e212d8d014bda748e461eab2e8c
- https://git.kernel.org/stable/c/aabbedcb6c9a72d12d35dc672e83f0c8064d8a61
- https://git.kernel.org/stable/c/bfd77b194c94aefbde4efc30ddf8607dd9244672
- https://git.kernel.org/stable/c/f670744a316ea983113a65313dcd387b5a992444
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.303
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.270
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.337
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.163
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.86
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.229
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2