AcoSail/kernel_optimize_test
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Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs into master

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Pull xtensa csum regression fix from Al Viro:
 "Max Filippov caught a breakage introduced in xtensa this cycle
  by the csum_and_copy_..._user() series.

  Cut'n'paste from the wrong source - the check that belongs
  in csum_and_copy_to_user() ended up both there and in
  csum_and_copy_from_user()"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  xtensa: fix access check in csum_and_copy_from_user
This commit is contained in:
Linus Torvalds 2020-07-24 14:19:00 -07:00
commit c953d60b11
1 changed files with 1 additions and 1 deletions
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arch/xtensa/include/asm/checksum.h
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@ -57,7 +57,7 @@ static inline
__wsum csum_and_copy_from_user(const void __user *src, void *dst,
int len, __wsum sum, int *err_ptr)
{
if (access_ok(dst, len))
if (access_ok(src, len))
return csum_partial_copy_generic((__force const void *)src, dst,
len, sum, err_ptr, NULL);
if (len)