[PATCH v2 12/16] devres: Use kmalloc_size_roundup() to match ksize() usage

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Round up allocations with kmalloc_size_roundup() so that devres's use
of ksize() is always accurate and no special handling of the memory is
needed by KASAN, UBSAN_BOUNDS, nor FORTIFY_SOURCE.

Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: "Rafael J. Wysocki" <rafael@xxxxxxxxxx>
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
 drivers/base/devres.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 864d0b3f566e..7db20ce7ea8a 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -101,6 +101,9 @@ static bool check_dr_size(size_t size, size_t *tot_size)
 					size, tot_size)))
 		return false;
 
+	/* Actually allocate the full kmalloc bucket size. */
+	*tot_size = kmalloc_size_roundup(*tot_size);
+
 	return true;
 }
 
-- 
2.34.1




[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux