SB20251230124 - Memory leak in Linux kernel mmc host driver
Published: December 30, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251230124
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-2022-50846)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the via_sd_probe() function in drivers/mmc/host/via-sdmmc.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/076bcd2c93e16b05c10564e299d6e5d26a766d00
- https://git.kernel.org/stable/c/0959cc1685eb19774300d43ef25e318b457b156b
- https://git.kernel.org/stable/c/0ec94795114edc7e24ec71849dce42bfa61dafa3
- https://git.kernel.org/stable/c/12b8e81b77c05c658efd9cde3585bbd65ae39b59
- https://git.kernel.org/stable/c/63400da6cd37a9793c19bb6aed7131b58b975a04
- https://git.kernel.org/stable/c/95025a8dd0ec015872f6c16473fe04d6264e68ca
- https://git.kernel.org/stable/c/ba91b413983a9235792523c6b9f7ba2586c4d75d
- https://git.kernel.org/stable/c/e4e46fb61e3bb4628170810d3f2b996b709b90d9
- https://git.kernel.org/stable/c/f59ef2a47a228e51322ad76752a55a8917c56e38
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.229