diff options
author | Matthew Wilcox <willy@infradead.org> | 2019-04-05 14:02:10 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-04-14 10:00:04 -0700 |
commit | 15fab63e1e57be9fdb5eec1bbc5916e9825e9acb (patch) | |
tree | 1353971310401012cf4b108a375e525065d8bec0 /include/linux/mm.h | |
parent | 8fde12ca79aff9b5ba951fce1a2641901b8d8e64 (diff) | |
download | linux-next-15fab63e1e57be9fdb5eec1bbc5916e9825e9acb.tar.gz |
fs: prevent page refcount overflow in pipe_buf_get
Change pipe_buf_get() to return a bool indicating whether it succeeded
in raising the refcount of the page (if the thing in the pipe is a page).
This removes another mechanism for overflowing the page refcount. All
callers converted to handle a failure.
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/mm.h')
0 files changed, 0 insertions, 0 deletions