fix(dracut-install): remove FTS_NOSTAT in install_modules() fts traversal

install_modules() uses FTS_NOSTAT when traversing kernel module
directories.  With FTS_NOSTAT, fts may skip stat() and report regular
files as FTS_NSOK instead of FTS_F.  However, the fts_info check only
accepts FTS_F and FTS_SL, causing all .ko files found this way to be
silently skipped.

This was previously masked by glibc's fts implementation which ignored
FTS_NOSTAT when FTS_LOGICAL was also set, always calling stat and
returning FTS_F.  A recent glibc change (commit 99303f3871, "io: Use
gnulib fts implementation") now honors FTS_NOSTAT regardless, exposing
this bug.

The result is that all '=directory' pattern module installs (=drivers,
=crypto, =fs, etc.) find zero modules, producing an initramfs with only
explicitly-named modules (~40 instead of ~500+), which typically fails
to boot.

Fix it by removing FTS_NOSTAT so that fts always stats files and
reliably reports actual file types.

diff --git a/src/install/dracut-install.c b/src/install/dracut-install.c
index efa64306ece20535daa80f704488f50b977a0e22..ac70b8dd7729be2fe7628ae3eb60b1c81f8fe9fc 100644 (file)
--- a/src/install/dracut-install.c
+++ b/src/install/dracut-install.c
@@ -2708,7 +2708,7 @@ static int install_modules(int argc, char **argv)
 
                         {
                                 char *paths[] = { path1, path2, path3, NULL };
-                                fts = fts_open(paths, FTS_COMFOLLOW | FTS_NOCHDIR | FTS_NOSTAT | FTS_LOGICAL, NULL);
+                                fts = fts_open(paths, FTS_COMFOLLOW | FTS_NOCHDIR | FTS_LOGICAL, NULL);
                         }
 
                         for (FTSENT *ftsent = fts_read(fts); ftsent != NULL; ftsent = fts_read(fts)) {