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net: add debug check in skb_reset_mac_header()
authorEric Dumazet <edumazet@google.com>
Tue, 5 Nov 2024 17:44:03 +0000 (17:44 +0000)
committerJakub Kicinski <kuba@kernel.org>
Thu, 7 Nov 2024 01:29:15 +0000 (17:29 -0800)
commit3b6167e9bfc9eae4edad065c166c667f9a8e693a
treee54f59d2d2852b6d52bb6aa4fb6e9eee6817d496tree
parent305ae87dafc1a9f35374a783119d9e6001d1b8e0commit | diff
net: add debug check in skb_reset_mac_header()

Make sure (skb->data - skb->head) can fit in skb->mac_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/20241105174403.850330-8-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
include/linux/skbuff.h diff | blob | history
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