This is a note to let you know that I've just added the patch titled
drm/amd: fix potential memleak in err branch
to the 5.7-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:
drm-amd-fix-potential-memleak-in-err-branch.patch
and it can be found in the queue-5.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b5b78a6c8d8cb9c307bc6b16a754603424459d6e Mon Sep 17 00:00:00 2001
From: Bernard Zhao <bernard@xxxxxxxx>
Date: Sat, 20 Jun 2020 17:11:52 +0800
Subject: drm/amd: fix potential memleak in err branch
From: Bernard Zhao <bernard@xxxxxxxx>
commit b5b78a6c8d8cb9c307bc6b16a754603424459d6e upstream.
The function kobject_init_and_add alloc memory like:
kobject_init_and_add->kobject_add_varg->kobject_set_name_vargs
->kvasprintf_const->kstrdup_const->kstrdup->kmalloc_track_caller
->kmalloc_slab, in err branch this memory not free. If use
kmemleak, this path maybe catched.
These changes are to add kobject_put in kobject_init_and_add
failed branch, fix potential memleak.
Signed-off-by: Bernard Zhao <bernard@xxxxxxxx>
Reviewed-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Signed-off-by: Felix Kuehling <Felix.Kuehling@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -396,6 +396,7 @@ struct kfd_process *kfd_create_process(s
(int)process->lead_thread->pid);
if (ret) {
pr_warn("Creating procfs pid directory failed");
+ kobject_put(process->kobj);
goto out;
}
Patches currently in stable-queue which might be from bernard@xxxxxxxx are
queue-5.7/drm-amd-fix-potential-memleak-in-err-branch.patch
