Currently, kmemleak tracks CMA regions that are specified through the devicetree. However, if the global CMA region is specified through the commandline, kmemleak will be unaware of the CMA region because kmemleak_alloc_phys() is not invoked after memblock_reserve(). Add the missing call to kmemleak_alloc_phys() so that all CMA regions are tracked by kmemleak before they are freed to the page allocator in cma_activate_area().
Cc: stable@vger.kernel.org Signed-off-by: Isaac J. Manjarres isaacmanjarres@google.com --- mm/cma.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/mm/cma.c b/mm/cma.c index 4a978e09547a..674b7fdd563e 100644 --- a/mm/cma.c +++ b/mm/cma.c @@ -318,6 +318,8 @@ int __init cma_declare_contiguous_nid(phys_addr_t base, ret = -EBUSY; goto err; } + + kmemleak_alloc_phys(base, size, 0); } else { phys_addr_t addr = 0;