[PATCH] erofs-utils: lib: fix packed xattr prefix seek

[Vansh Choudhary]

erofs_xattr_flush_name_prefixes() records the current packed file
offset, writes xattr prefixes with erofs_io_pwrite(), and then seeks
back to the new absolute end position.

Use SEEK_SET for that final lseek(). SEEK_CUR adds the tracked offset
to the unchanged file position and can leave the packed file offset too
far forward.

Signed-off-by: Vansh Choudhary <ch at vnsh.in>
---
 lib/xattr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/xattr.c b/lib/xattr.c
index 565070a..9247004 100644
--- a/lib/xattr.c
+++ b/lib/xattr.c
@@ -946,7 +946,7 @@ int erofs_xattr_flush_name_prefixes(struct erofs_importer *im, bool plain)
 		erofs_bdrop(bh, false);
 	} else {
 		DBG_BUGON(bmgr);
-		if (lseek(vf->fd, offset, SEEK_CUR) < 0)
+		if (lseek(vf->fd, offset, SEEK_SET) < 0)
 			return -errno;
 	}
 	erofs_sb_set_xattr_prefixes(sbi);
-- 
2.43.0