SB2025100875 - Out-of-bounds read in Linux kernel fonts
Published: October 8, 2025 Updated: October 26, 2025
Security Bulletin ID
SB2025100875
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) Out-of-bounds read (CVE-ID: CVE-2022-50511)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to an out-of-bounds read error within the get_default_font() function in lib/fonts/fonts.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/6fe888c4d2fb174408e4540bb2d5602b9f507f90
- https://git.kernel.org/stable/c/890d91b31f4874361e0df047f57d268a7021cb12
- https://git.kernel.org/stable/c/9c14a85e18a58c102ec223144b7edb5b345c1bea
- https://git.kernel.org/stable/c/c9a9aa02f0fa3318e0ae5774f404419a1b4759ca
- https://git.kernel.org/stable/c/e039929e36818507e90901edae87f6fa8bc81093
- https://git.kernel.org/stable/c/e83b47580a0738361772d6f24286adfdaba57e36
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.86