PT-2025-51697 · Linux+3 · Linux Kernel+3
Published
2025-12-16
·
Updated
2026-04-06
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CVE-2025-68293
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A flaw exists in the Linux kernel’s memory management subsystem, specifically within the huge memory handling related to folio splitting. A NULL pointer dereference can occur when splitting a folio, particularly in scenarios involving shared memory folios in the swap cache or truncated folios. This issue was introduced by commit c010d47f107f, which added a check on the folio’s order via
mapping->flags before proceeding with the split. The check fails to account for cases where the mapping pointer is NULL, leading to a crash when attempting to access mapping->flags.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Ubuntu