kmemcheck: Test the full object in kmemcheck_is_obj_initialized()

This is a fix for bug #14845 (bugzilla.kernel.org). The update_checksum()
function in mm/kmemleak.c calls kmemcheck_is_obj_initialised() before scanning
an object. When KMEMCHECK_PARTIAL_OK is enabled, this function returns true.
However, the crc32_le() reads smaller intervals (32-bit) for which
kmemleak_is_obj_initialised() may be false leading to a kmemcheck warning.

Note that kmemcheck_is_obj_initialized() is currently only used by
kmemleak before scanning a memory location.

Signed-off-by: Catalin Marinas <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: Christian Casteyde <[email protected]>
Cc: Vegard Nossum <[email protected]>
Signed-off-by: Pekka Enberg <[email protected]>

0 files changed, 0 insertions, 0 deletions