diff options
| author | Sami Tolvanen <samitolvanen@google.com> | 2021-04-08 21:28:34 +0300 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2021-04-09 02:04:22 +0300 |
| commit | 4f0f586bf0c898233d8f316f471a21db2abd522d (patch) | |
| tree | 3b3ec78051f5a5d2b96f834347355b1b306026ea /fs/xfs/xfs_rmap_item.c | |
| parent | 9f5b4009980f369acb80b72235b2d66c3fd6eca6 (diff) | |
| download | linux-4f0f586bf0c898233d8f316f471a21db2abd522d.tar.xz | |
treewide: Change list_sort to use const pointers
list_sort() internally casts the comparison function passed to it
to a different type with constant struct list_head pointers, and
uses this pointer to call the functions, which trips indirect call
Control-Flow Integrity (CFI) checking.
Instead of removing the consts, this change defines the
list_cmp_func_t type and changes the comparison function types of
all list_sort() callers to use const pointers, thus avoiding type
mismatches.
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Nick Desaulniers <ndesaulniers@google.com>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210408182843.1754385-10-samitolvanen@google.com
Diffstat (limited to 'fs/xfs/xfs_rmap_item.c')
| -rw-r--r-- | fs/xfs/xfs_rmap_item.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/xfs/xfs_rmap_item.c b/fs/xfs/xfs_rmap_item.c index 49cebd68b672..dc4f0c9f0897 100644 --- a/fs/xfs/xfs_rmap_item.c +++ b/fs/xfs/xfs_rmap_item.c @@ -337,8 +337,8 @@ xfs_trans_log_finish_rmap_update( static int xfs_rmap_update_diff_items( void *priv, - struct list_head *a, - struct list_head *b) + const struct list_head *a, + const struct list_head *b) { struct xfs_mount *mp = priv; struct xfs_rmap_intent *ra; |