CVE-2025-71155 PUBLISHED

KVM: s390: Fix gmap_helper_zap_one_page() again

Assigner: Linux
Reserved: 13.01.2026 Published: 23.01.2026 Updated: 23.01.2026

In the Linux kernel, the following vulnerability has been resolved:

KVM: s390: Fix gmap_helper_zap_one_page() again

A few checks were missing in gmap_helper_zap_one_page(), which can lead to memory corruption in the guest under specific circumstances.

Add the missing checks.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 5deafa27d9ae040b75d392f60b12e300b42b4792 to 2af2abbcbf8573100288e8f8aea2dab8a2a0ceb7 (excl.)
  • affected from 5deafa27d9ae040b75d392f60b12e300b42b4792 to 2f393c228cc519ddf19b8c6c05bf15723241aa96 (excl.)
  • Version 919efcadb63fc3d3a82c3de7194140e0b28903dc is affected
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.18 is affected
  • unaffected from 0 to 6.18 (excl.)
  • unaffected from 6.18.4 to 6.18.* (incl.)
  • unaffected from 6.19-rc1 to * (incl.)

References