net: add debug check in skb_reset_transport_header()
authorEric Dumazet <edumazet@google.com>
Tue, 5 Nov 2024 17:44:01 +0000 (17:44 +0000)
committerJakub Kicinski <kuba@kernel.org>
Thu, 7 Nov 2024 01:29:14 +0000 (17:29 -0800)
commitae50ea52bdd77eabd8f3c4630c1b03c3373f61a5
treeefe9d044abe92378afe76ae36ea299a2d81558c1
parent78a0cb2f45dc9327f26956c242f7f4b450efff49
net: add debug check in skb_reset_transport_header()

Make sure (skb->data - skb->head) can fit in skb->transport_header

This needs CONFIG_DEBUG_NET=y.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Joe Damato <jdamato@fastly.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Link: https://patch.msgid.link/20241105174403.850330-6-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
include/linux/skbuff.h