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(parent: d64c7a0) | patch
netlink: Use netlink header as base to calculate bad attribute offset
authorPablo Neira Ayuso <pablo@netfilter.org>
Wed, 26 Feb 2020 18:47:34 +0000 (19:47 +0100)
committerDavid S. Miller <davem@davemloft.net>
Sun, 1 Mar 2020 05:21:23 +0000 (21:21 -0800)
commit84b3268027641401bb8ad4427a90a3cce2eb86f5
tree29a8587323b128b72d0629da76eb131b3f55ad05tree | snapshot
parentd64c7a08034b32c285e576208ae44fc3ba3fa7dfcommit | diff
netlink: Use netlink header as base to calculate bad attribute offset

Userspace might send a batch that is composed of several netlink
messages. The netlink_ack() function must use the pointer to the netlink
header as base to calculate the bad attribute offset.

Fixes: 2d4bc93368f5 ("netlink: extended ACK reporting")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/netlink/af_netlink.c diff | blob | history
Domain: System / Kernel;