Patch "amdkfd: use calloc instead of kzalloc to avoid integer overflow" has been added to the 5.4-stable tree

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This is a note to let you know that I've just added the patch titled

    amdkfd: use calloc instead of kzalloc to avoid integer overflow

to the 5.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     amdkfd-use-calloc-instead-of-kzalloc-to-avoid-integer-overflow.patch
and it can be found in the queue-5.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 3b0daecfeac0103aba8b293df07a0cbaf8b43f29 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@xxxxxxxxxx>
Date: Fri, 12 Apr 2024 06:11:25 +1000
Subject: amdkfd: use calloc instead of kzalloc to avoid integer overflow

From: Dave Airlie <airlied@xxxxxxxxxx>

commit 3b0daecfeac0103aba8b293df07a0cbaf8b43f29 upstream.

This uses calloc instead of doing the multiplication which might
overflow.

Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/amd/amdkfd/kfd_chardev.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -938,8 +938,8 @@ static int kfd_ioctl_get_process_apertur
 	 * nodes, but not more than args->num_of_nodes as that is
 	 * the amount of memory allocated by user
 	 */
-	pa = kzalloc((sizeof(struct kfd_process_device_apertures) *
-				args->num_of_nodes), GFP_KERNEL);
+	pa = kcalloc(args->num_of_nodes, sizeof(struct kfd_process_device_apertures),
+		     GFP_KERNEL);
 	if (!pa)
 		return -ENOMEM;
 


Patches currently in stable-queue which might be from airlied@xxxxxxxxxx are

queue-5.4/amdkfd-use-calloc-instead-of-kzalloc-to-avoid-integer-overflow.patch




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