SB2024070427 - Division by zero in Linux kernel ext4
Published: July 4, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024070427
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) Division by zero (CVE-ID: CVE-2024-26774)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a division by zero error within the mb_update_avg_fragment_size() function in fs/ext4/mballoc.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/687061cfaa2ac3095170e136dd9c29a4974f41d4
- https://git.kernel.org/stable/c/8b40eb2e716b503f7a4e1090815a17b1341b2150
- https://git.kernel.org/stable/c/f32d2a745b02123258026e105a008f474f896d6a
- https://git.kernel.org/stable/c/8cf9cc602cfb40085967c0d140e32691c8b71cf3
- https://git.kernel.org/stable/c/993bf0f4c393b3667830918f9247438a8f6fdb5b
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.150
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.80
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8