SB2025061919 - Memory leak in Linux kernel crypto ccp driver
Published: June 19, 2025 Updated: June 21, 2025
Security Bulletin ID
SB2025061919
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-2022-50226)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the sev_ioctl_do_platform_status(), sev_ioctl_do_pek_csr(), sev_ioctl_do_get_id2() and sev_ioctl_do_pdh_export() functions in drivers/crypto/ccp/sev-dev.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/13dc15a3f5fd7f884e4bfa8c011a0ae868df12ae
- https://git.kernel.org/stable/c/4c5300f6f5e18b11c02a92f136e69b98fddba15e
- https://git.kernel.org/stable/c/caa395aa16e7c9193fd7fa6cde462dd8229d4953
- https://git.kernel.org/stable/c/e11fb0a3a39bb42da35fa662c46ce7391f277436
- https://git.kernel.org/stable/c/f2a920daa780956b987c14b9f23de7c3c8915bf2
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.61