Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1246113

Re: [PATCH] pstore: add vmalloc error check

Show key headers only | View raw

On Tue, Oct 13, 2015 at 2:27 AM, Geliang Tang <geliangtang@163.com> wrote:
> If vmalloc is failed, return -ENOMEM.
>
> Signed-off-by: Geliang Tang <geliangtang@163.com>
> ---
>  fs/pstore/pmsg.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/fs/pstore/pmsg.c b/fs/pstore/pmsg.c
> index feb5dd2..5a2f05a 100644
> --- a/fs/pstore/pmsg.c
> +++ b/fs/pstore/pmsg.c
> @@ -37,6 +37,8 @@ static ssize_t write_pmsg(struct file *file, const char __user *buf,
>         if (buffer_size > PMSG_MAX_BOUNCE_BUFFER_SIZE)
>                 buffer_size = PMSG_MAX_BOUNCE_BUFFER_SIZE;
>         buffer = vmalloc(buffer_size);
> +       if (!buffer)
> +               return -ENOMEM;
>
>         mutex_lock(&pmsg_lock);
>         for (i = 0; i < count; ) {
> --
> 1.9.1

I thought I saw this fix come through before? Regardless, thank you!

Acked-by: Kees Cook <keescook@chromium.org>

-Kees


-- 
Kees Cook
Chrome OS Security
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread

Thread

[PATCH] pstore: add vmalloc error check Geliang Tang <geliangtang@163.com> - 2015-10-13 11:40 +0200
  Re: [PATCH] pstore: add vmalloc error check Kees Cook <keescook@chromium.org> - 2015-10-13 22:20 +0200

csiph-web