[4.9] Security fixes

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I've attached the following fixes to 4.9, as an mbox:

- brcmfmac: add length checks in scheduled scan result handler
- brcmfmac: assure SSID length from firmware is limited
- brcmfmac: add subtype check for event handling in data path
- binder: Replace "%p" with "%pK" for stable
- binder: replace "%p" with "%pK"
- fs: prevent page refcount overflow in pipe_buf_get
- mm, gup: remove broken VM_BUG_ON_PAGE compound check for hugepages
- mm, gup: ensure real head page is ref-counted when using hugepages
- mm: prevent get_user_pages() from overflowing page refcount
- mm: make page ref count overflow check tighter and more explicit
- coredump: fix race condition between mmget_not_zero()/get_task_mm() and core dumping

The first two "mm, gup" commits might not be strictly security fixes
but the next one depends on them.

Ben.

-- 
Ben Hutchings, Software Developer                         Codethink Ltd
https://www.codethink.co.uk/                 Dale House, 35 Dale Street
                                     Manchester, M1 2HF, United Kingdom

Attachment: security-4.9.mbox
Description: application/mbox


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