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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2018-07-17 19:19:14 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-23 00:08:07 +0300 |
| commit | 4077991c8536595b50b52bab739ef1e9ac6a72cf (patch) | |
| tree | 5b4b6c1cea87f26aaff4491e1e40d96b8b99c270 /fs/bcachefs/fifo.h | |
| parent | 97446a242a56f9350be7b8985ed933fe9118f41e (diff) | |
| download | linux-4077991c8536595b50b52bab739ef1e9ac6a72cf.tar.xz | |
bcachefs: Fix a use after free in the journal code
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/fifo.h')
| -rw-r--r-- | fs/bcachefs/fifo.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/bcachefs/fifo.h b/fs/bcachefs/fifo.h index bd1534ecadb6..00d245efe72a 100644 --- a/fs/bcachefs/fifo.h +++ b/fs/bcachefs/fifo.h @@ -109,17 +109,17 @@ do { \ #define fifo_peek(fifo) fifo_peek_front(fifo) #define fifo_for_each_entry(_entry, _fifo, _iter) \ - for (((void) (&(_iter) == &(_fifo)->front)), \ - _iter = (_fifo)->front; \ + for (typecheck(typeof((_fifo)->front), _iter), \ + (_iter) = (_fifo)->front; \ ((_iter != (_fifo)->back) && \ (_entry = (_fifo)->data[(_iter) & (_fifo)->mask], true)); \ - _iter++) + (_iter)++) #define fifo_for_each_entry_ptr(_ptr, _fifo, _iter) \ - for (((void) (&(_iter) == &(_fifo)->front)), \ - _iter = (_fifo)->front; \ + for (typecheck(typeof((_fifo)->front), _iter), \ + (_iter) = (_fifo)->front; \ ((_iter != (_fifo)->back) && \ (_ptr = &(_fifo)->data[(_iter) & (_fifo)->mask], true)); \ - _iter++) + (_iter)++) #endif /* _BCACHEFS_FIFO_H */ |