audit: always check the netlink payload length in audit_receive_msg()

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commit 7561252892 upstream.

This patch ensures that we always check the netlink payload length
in audit_receive_msg() before we take any action on the payload
itself.

Cc: stable@vger.kernel.org
Reported-by: syzbot+399c44bf1f43b8747403@syzkaller.appspotmail.com
Reported-by: syzbot+e4b12d8d202701f08b6d@syzkaller.appspotmail.com
Signed-off-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Paul Moore 2020-02-24 16:38:57 -05:00 • committed by Greg Kroah-Hartman

parent 4f3daed0c7

commit ec2a01db62

1 changed files with 21 additions and 19 deletions

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kernel/audit.c

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