4b66af2d("af_key: Always verify length of provided sadb_key")

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Subject: 4b66af2d("af_key: Always verify length of provided sadb_key")
From: Zubin Mithra <zsm@xxxxxxxxxxxx>
Date: Wed, 13 Jun 2018 14:02:54 -0400
Cc: groeck@xxxxxxxxxxxx, stable@xxxxxxxxxxxxxxx
User-agent: Mutt/1.9.2 (2017-12-15)

Hello,

Syzkaller has reported a crash here[1] for a slab OOB read in pfkey_add.

Could the following patch be applied to stable kernels for 4.14, 4.4, 3.18, 3.14, 3.10 and 3.8?

4b66af2d("af_key: Always verify length of provided sadb_key")

[1] https://syzkaller.appspot.com/bug?id=26cb120b31cd24d984fc16da67f50fb375c432a7

Thanks,
- Zubin

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