Improper Check or Handling of Exceptional Conditions in Linux kernel - CVE-2026-72027
Published: August 16, 2026
Vulnerability identifier: #VU143571
CSH Severity: Low
CVSS v4: 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]
CVE-ID: CVE-2026-72027
CWE-ID: CWE-703
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Linux kernel
How to mitigate CVE-2026-72027
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3