CVE-2026-53064

A flaw was found in the Linux kernel's device-mapper dm-cache component. When dm-cache operates in passthrough mode, a race condition can occur during concurrent write operations to the same cached block. This can lead to a null-pointer dereference in the invalidatecomplete function, potentially...

CVE-2026-53064 dm cache: fix null-deref with concurrent writes in passthrough mode

In the Linux kernel, the following vulnerability has been resolved: dm cache: fix null-deref with concurrent writes in passthrough mode In passthrough mode, when dm-cache starts to invalidate a cache entry and bio prison cell lock fails due to concurrent write to the same cached block, mg-cell...

CVE-2026-53064

Summary: CVE-2026-53064 affects the Linux kernel dm-cache when operating in passthrough mode. A race between cache invalidation and concurrent writes can leave mg->cell as NULL, causing a NULL pointer dereference in the unlock path during invalidate_complete(), triggering a KASAN null-ptr-dere...

EUVD-2026-38932

In the Linux kernel, the following vulnerability has been resolved: dm cache: fix null-deref with concurrent writes in passthrough mode In passthrough mode, when dm-cache starts to invalidate a cache entry and bio prison cell lock fails due to concurrent write to the same cached block, mg-cell...

PT-2026-51958

Name of the Vulnerable Software and Affected Versions Linux kernel version 6.19.0-rc7 Description In passthrough mode, a null pointer dereference occurs when dm-cache attempts to invalidate a cache entry while a concurrent write to the same cached block causes the bio prison cell lock to fail. In...