SB2024082661 - NULL pointer dereference in Linux kernel fs
Published: August 26, 2024 Updated: May 12, 2025
Security Bulletin ID
SB2024082661
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) NULL pointer dereference (CVE-ID: CVE-2024-43898)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the ext4_da_do_write_end() function in fs/ext4/inode.c, within the __block_commit_write() function in fs/buffer.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/3f6bbe6e07e5239294ecc3d2efa70d1f98aed52e
- https://git.kernel.org/stable/c/f619876ccbfd329ae785fe5d3289b9dcd6eb5901
- https://git.kernel.org/stable/c/83f4414b8f84249d538905825b088ff3ae555652
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.10.5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.47