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SubjectRe: [PATCH] ath6kl: Fix a possible null-pointer dereference in ath6kl_htc_mbox_create()
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Jia-Ju Bai <baijiaju1990@gmail.com> wrote:

> In ath6kl_htc_mbox_create(), when kzalloc() on line 2855 fails,
> target->dev is assigned to NULL, and ath6kl_htc_mbox_cleanup(target) is
> called on line 2885.
>
> In ath6kl_htc_mbox_cleanup(), target->dev is used on line 2895:
> ath6kl_hif_cleanup_scatter(target->dev->ar);
>
> Thus, a null-pointer dereference may occur.
>
> To fix this bug, kfree(target) is called and NULL is returned when
> kzalloc() on line 2855 fails.
>
> This bug is found by a static analysis tool STCheck written by us.
>
> Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

Patch applied to ath-next branch of ath.git, thanks.

0e7bf23e4967 ath6kl: Fix a possible null-pointer dereference in ath6kl_htc_mbox_create()

--
https://patchwork.kernel.org/patch/11063157/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches

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