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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2017-06-29 22:25:14 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2017-07-07 05:18:09 -0400 |
| commit | 09fc68dc66f7597bdc8898c991609a48f061bed5 (patch) | |
| tree | ae0af5ee4b37d0133ed57c0c6f5e625430221ff5 /.get_maintainer.ignore | |
| parent | iov_iter: sanity checks for copy to/from page primitives (diff) | |
| download | linux-dev-09fc68dc66f7597bdc8898c991609a48f061bed5.tar.xz linux-dev-09fc68dc66f7597bdc8898c991609a48f061bed5.zip | |
iov_iter: saner checks on copyin/copyout
* might_fault() is better checked in caller (and e.g. fault-in + kmap_atomic
codepath also needs might_fault() coverage)
* we have already done object size checks
* we have *NOT* done access_ok() recently enough; we rely upon the
iovec array having passed sanity checks back when it had been created
and not nothing having buggered it since. However, that's very much
non-local, so we'd better recheck that.
So the thing we want does not match anything in uaccess - we need
access_ok + kasan checks + raw copy without any zeroing. Just define
such helpers and use them here.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to '.get_maintainer.ignore')
0 files changed, 0 insertions, 0 deletions