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| author | Matthew Wilcox <[email protected]> | 2019-04-05 21:02:10 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2019-04-14 17:00:04 +0000 |
| commit | 15fab63e1e57be9fdb5eec1bbc5916e9825e9acb (patch) | |
| tree | 1353971310401012cf4b108a375e525065d8bec0 /tools/perf/scripts/python/syscall-counts.py | |
| parent | mm: prevent get_user_pages() from overflowing page refcount (diff) | |
| download | kernel-15fab63e1e57be9fdb5eec1bbc5916e9825e9acb.tar.gz kernel-15fab63e1e57be9fdb5eec1bbc5916e9825e9acb.zip | |
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 <[email protected]>
Signed-off-by: Matthew Wilcox <[email protected]>
Cc: [email protected]
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions