CVE-2025-68248 vmw_balloon: indicate success when effectively deflating during migration

In the Linux kernel, the following vulnerability has been resolved: vmwballoon: indicate success when effectively deflating during migration When migrating a balloon page, we first deflate the old page to then inflate the new page. However, if inflating the new page succeeded, we effectively...

CVE-2025-68248

CVE-2025-68248 – summary : In the Linux kernel, a balloon-page migration flow (vmw_balloon) could incorrectly reflect success when deflating the old page during migration if inflating the new page succeeded. This could leave the old page marked isolated and lead to a WARN_ON_ONCE() at balloon_pag...