Re: [PATCH] 6lowpan: iphc: Fix an off-by-one check of array index

From: Marcel Holtmann
Date: Thu Jul 22 2021 - 10:21:39 EST


Hi Colin,

> The bounds check of id is off-by-one and the comparison should
> be >= rather >. Currently the WARN_ON_ONCE check does not stop
> the out of range indexing of &ldev->ctx.table[id] so also add
> a return path if the bounds are out of range.
>
> Addresses-Coverity: ("Illegal address computation").
> Fixes: 5609c185f24d ("6lowpan: iphc: add support for stateful compression")
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
> net/6lowpan/debugfs.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel