xfrm: Refuse to insert 32 bit userspace socket policies on 64 bit systems

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We don't have a compat layer for xfrm, so userspace and kernel
structures have different sizes in this case. This results in
a broken configuration, so refuse to configure socket policies
when trying to insert from 32 bit userspace as we do it already
with policies inserted via netlink.

Reported-and-tested-by: syzbot+e1a1577ca8bcb47b769a@syzkaller.appspotmail.com
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>

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Steffen Klassert 2018-02-01 08:49:23 +01:00

parent 743ffffefa

commit 19d7df69fd

1 changed files with 5 additions and 0 deletions

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net/xfrm/xfrm_state.c

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