SB20260816507 - Improper Check or Handling of Exceptional Conditions in Linux kernel mm
Published: August 16, 2026
Security Bulletin ID
SB20260816507
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Check or Handling of Exceptional Conditions (CVE-ID: CVE-2026-72027)
CWE-ID: CWE-703 - Improper Check or Handling of Exceptional Conditions
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local attacker to cause data corruption.
The vulnerability exists due to improper handling of error conditions in compaction_free() when processing pages during memory compaction. A local attacker can trigger free_pages_prepare() to fail and cause corrupted pages to be added back to the free page list to cause data corruption.
Remediation
Install update from vendor's website.