SB20260816102 - Memory leak in Linux kernel video fbdev driver
Published: August 16, 2026
Security Bulletin ID
SB20260816102
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Memory leak (CVE-ID: CVE-2026-72275)
CWE-ID: CWE-401 - Missing release of memory after effective lifetime
CVSSv4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a local user to cause a denial of service.
The vulnerability exists due to a memory leak in broadsheetfb_probe() when handling device initialization errors. A local user can trigger the vulnerable error path to cause a denial of service.
The issue occurs because memory allocated for pagerefs in deferred I/O initialization is not released on an error path.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/07d2f9cb667c2f6331a483227c62d0a4a91ef42f
- https://git.kernel.org/stable/c/4ce94f9e3bfb37866638e4b81e2c3d8f7470a12c
- https://git.kernel.org/stable/c/54a4cd11702d5e8bcefc3b514e338955813993a1
- https://git.kernel.org/stable/c/9d18a4e4234fd3ee0d0eed8ccbbb50cb76b2232c
- https://git.kernel.org/stable/c/e818c397548cde68d64c6abf8be0a5f3e3eef7d1
- https://git.kernel.org/stable/c/e8c9aae8c950869f65af8b9dd2f71f861ea6e433
- https://git.kernel.org/stable/c/edc5a845108337d0c167ab850fe9adfaea442975