SB20251226105 - Memory leak in Linux kernel crypto virtio driver
Published: December 26, 2025 Updated: December 31, 2025
Security Bulletin ID
SB20251226105
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-2022-50707)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the virtio_crypto_alg_skcipher_close_session() function in drivers/crypto/virtio/virtio_crypto_skcipher_algs.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/0871df190fe6723464efe0f493d476411616f553
- https://git.kernel.org/stable/c/67fb59ff1384e338679c0eb7a43c83ce8868c9fa
- https://git.kernel.org/stable/c/79026a2d0a1b080257773d22a493f9bcab8c65be
- https://git.kernel.org/stable/c/b1d65f717cd6305a396a8738e022c6f7c65cfbe8
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.209
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.148
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2