Bug 2516454 (CVE-2026-72027) - CVE-2026-72027 kernel: mm/compaction: handle free_pages_prepare() properly in compaction_free()
Summary: CVE-2026-72027 kernel: mm/compaction: handle free_pages_prepare() properly in...
Keywords:
Status: NEW
Alias: CVE-2026-72027
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-15 06:13 UTC by OSIDB Bzimport
Modified: 2026-08-17 16:38 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-08-15 06:13:23 UTC
In the Linux kernel, the following vulnerability has been resolved:

mm/compaction: handle free_pages_prepare() properly in compaction_free()

free_pages_prepare() can fail but compaction_free() does not handle the
failure case.  Failed pages should not be added back to cc->freepages for
future use, since they can be either PageHWPoison or free_page_is_bad()
and might cause data corruption.


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