lkml.org 
[lkml]   [2020]   [May]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH] efi/esrt: Fix reference count leak in esre_create_sysfs_entry.
On Thu, 28 May 2020 at 20:38, <wu000273@umn.edu> wrote:
>
> From: Qiushi Wu <wu000273@umn.edu>
>
> kobject_init_and_add() takes reference even when it fails.
> If this function returns an error, kobject_put() must be called to
> properly clean up the memory associated with the object. Previous
> commit "b8eb718348b8" fixed a similar problem.
>
> Fixes: 0bb549052d33 ("efi: Add esrt support")
> Signed-off-by: Qiushi Wu <wu000273@umn.edu>
> ---
> drivers/firmware/efi/esrt.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/firmware/efi/esrt.c b/drivers/firmware/efi/esrt.c
> index e3d692696583..d5915272141f 100644
> --- a/drivers/firmware/efi/esrt.c
> +++ b/drivers/firmware/efi/esrt.c
> @@ -181,7 +181,7 @@ static int esre_create_sysfs_entry(void *esre, int entry_num)
> rc = kobject_init_and_add(&entry->kobj, &esre1_ktype, NULL,
> "entry%d", entry_num);
> if (rc) {
> - kfree(entry);

Why are you removing this kfree() call?

> + kobject_put(&entry->kobj);
> return rc;
> }
> }
> --
> 2.17.1
>

\
 
 \ /
  Last update: 2020-05-29 19:01    [W:0.072 / U:0.028 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site