Re: [4.9] Security fixes

On Thu, May 30, 2019 at 12:52:37PM +0100, Ben Hutchings wrote:

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.

All now queued up, thanks!

greg k-h