mirror of https://gitee.com/openkylin/linux.git
dbd46ab412
tpacket_fill_skb() can return a negative value (-errno) which
is stored in tp_len variable. In that case the following
condition will be (but shouldn't be) true:
tp_len > dev->mtu + dev->hard_header_len
as dev->mtu and dev->hard_header_len are both unsigned.
That may lead to just returning an incorrect EMSGSIZE errno
to the user.
Fixes:
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.. | ||
Kconfig | ||
Makefile | ||
af_packet.c | ||
diag.c | ||
internal.h |