tree 8d47f51afb6763b923fc3082f6a259456a2c77f7
parent 2865936259e27629fac422bc80c9b55ca1f108a5
parent dcde237319e626d1ec3c9d8b7613032f0fd4663a
author Linus Torvalds <torvalds@linux-foundation.org> 1582329816 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> 1582329816 -0800
mergetag object dcde237319e626d1ec3c9d8b7613032f0fd4663a
 type commit
 tag arm64-fixes
 tagger Will Deacon <will@kernel.org> 1582290843 +0000
 
 arm64 fixes for -rc3
 
 - Fix regression in malloc() caused by ignored address tags in brk()
 
 - Add missing brackets around argument to untagged_addr() macro
 
 - Fix clang build when using binutils assembler
 
 - Fix silly typo in virtual memory map documentation
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "It's all straightforward apart from the changes to mmap()/mremap() in
  relation to their handling of address arguments from userspace with
  non-zero tag bits in the upper byte.

  The change to brk() is necessary to fix a nasty user-visible
  regression in malloc(), but we tightened up mmap() and mremap() at the
  same time because they also allow the user to create virtual aliases
  by accident. It's much less likely than brk() to matter in practice,
  but enforcing the principle of "don't permit the creation of mappings
  using tagged addresses" leads to a straightforward ABI without having
  to worry about the "but what if a crazy program did foo?" aspect of
  things.

  Summary:

   - Fix regression in malloc() caused by ignored address tags in brk()

   - Add missing brackets around argument to untagged_addr() macro

   - Fix clang build when using binutils assembler

   - Fix silly typo in virtual memory map documentation"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  mm: Avoid creating virtual address aliases in brk()/mmap()/mremap()
  docs: arm64: fix trivial spelling enought to enough in memory.rst
  arm64: memory: Add missing brackets to untagged_addr() macro
  arm64: lse: Fix LSE atomics with LLVM