| Message ID | 20240813105314.58484-2-thorsten.blum@toblux.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | btrfs: Annotate struct name_cache_entry with __counted_by() | expand |
On Tue, Aug 13, 2024 at 12:53:15PM +0200, Thorsten Blum wrote: > Add the __counted_by compiler attribute to the flexible array member > name to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and > CONFIG_FORTIFY_SOURCE. > > Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com> Thanks, Reviewed-by: David Sterba <dsterba@suse.com>
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index 4ca711a773ef..de185b23cfd0 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -347,7 +347,7 @@ struct name_cache_entry { int ret; int need_later_update; int name_len; - char name[]; + char name[] __counted_by(name_len); }; /* See the comment at lru_cache.h about struct btrfs_lru_cache_entry. */
Add the __counted_by compiler attribute to the flexible array member name to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE. Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com> --- fs/btrfs/send.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)