SB2024053063 - Memory leak in Linux kernel block driver
Published: May 30, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024053063
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-2021-47319)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the virtblk_freeze() function in drivers/block/virtio_blk.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/381bde79d11e596002edfd914e6714291826967a
- https://git.kernel.org/stable/c/102d6bc6475ab09bab579c18704e6cf8d898e93c
- https://git.kernel.org/stable/c/863da837964c80c72e368a4f748c30d25daa1815
- https://git.kernel.org/stable/c/600942d2fd49b90e44857d20c774b20d16f3130f
- https://git.kernel.org/stable/c/04c6e60b884cb5e94ff32af46867fb41d5848358
- https://git.kernel.org/stable/c/cd24da0db9f75ca11eaf6060f0ccb90e2f3be3b0
- https://git.kernel.org/stable/c/ca2b8ae93a6da9839dc7f9eb9199b18aa03c3dae
- https://git.kernel.org/stable/c/29a2f4a3214aa14d61cc9737c9f886dae9dbb710
- https://git.kernel.org/stable/c/b71ba22e7c6c6b279c66f53ee7818709774efa1f
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.240
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.198
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.276
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.276
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.52
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.134