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SubjectRe: [PATCH][next] taprio: add null check on sched_nest to avoid potential null pointer dereference
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From: Colin King <colin.king@canonical.com>
Date: Sun, 5 May 2019 22:50:19 +0100

> From: Colin Ian King <colin.king@canonical.com>
>
> The call to nla_nest_start_noflag can return a null pointer and currently
> this is not being checked and this can lead to a null pointer dereference
> when the null pointer sched_nest is passed to function nla_nest_end. Fix
> this by adding in a null pointer check.
>
> Addresses-Coverity: ("Dereference null return value")
> Fixes: a3d43c0d56f1 ("taprio: Add support adding an admin schedule")
> Signed-off-by: Colin Ian King <colin.king@canonical.com>

Applied.

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