net: qrtr: make checks in qrtr_endpoint_post() stricter

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These checks are still not strict enough.  The main problem is that if
"cb->type == QRTR_TYPE_NEW_SERVER" is true then "len - hdrlen" is
guaranteed to be 4 but we need to be at least 16 bytes.  In fact, we
can reject everything smaller than sizeof(*pkt) which is 20 bytes.

Also I don't like the ALIGN(size, 4).  It's better to just insist that
data is needs to be aligned at the start.

Fixes: 0baa99ee35 ("net: qrtr: Allow non-immediate node routing")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Dan Carpenter 2021-08-30 11:37:17 +03:00 • committed by David S. Miller

parent efe487fce3

commit aaa8e4922c

1 changed files with 6 additions and 2 deletions

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net/qrtr/qrtr.c

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