SB20240603170 - Double free in Linux kernel btrfs
Published: June 3, 2024 Updated: May 14, 2025
Security Bulletin ID
SB20240603170
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) Double free (CVE-ID: CVE-2024-26792)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a double free error within the create_pending_snapshot() function in fs/btrfs/transaction.c, within the create_subvol() function in fs/btrfs/ioctl.c, within the btrfs_free_fs_info(), btrfs_init_fs_root(), btrfs_put_root() and btrfs_get_fs_root() functions in fs/btrfs/disk-io.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/c34adc20b91a8e55e048b18d63f4f4ae003ecf8f
- https://git.kernel.org/stable/c/eb3441093aad251418921246fc3b224fd1575701
- https://git.kernel.org/stable/c/c8ab7521665bd0f8bc4a900244d1d5a7095cc3b9
- https://git.kernel.org/stable/c/e2b54eaf28df0c978626c9736b94f003b523b451
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.81
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.21
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.9
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8