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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-46277

mm/zone_device: do not touch device folio after calling ->folio_free()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: mm/zone_device: do not touch device folio after calling ->folio_free() The contents of a device folio can immediately change after calling ->folio_free(), as the folio may be reallocated by a driver with a different order. Instead of touching the folio again to extract the pgmap, use the local stack variable when calling percpu_ref_put_many().

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • d245f9b4ab806733a77e51a218ca7b8bc3135cd9 to < 85be0a262e39c706edb53c88af8afde2e98222baaffected
  • d245f9b4ab806733a77e51a218ca7b8bc3135cd9 to < 39928984956037cabd304321cb8f342e47421db5affected

Linux Linux

Default version status: affected

  • 6.19affected
  • 0 to < 6.19unaffected
  • 7.0.4 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References