From 25ef4c4d9f0e96fb89c0ae0d7127c3f12a31bc32 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 11 May 2026 09:16:52 +0200 Subject: [PATCH] isofs: handle set_blocksize failures isofs uses buffer_heads, which don't handle block size > PAGE_SIZE well. Without this, mounting we will hit the BUG_ON(offset >= folio_size(folio)); in folio_set_bh on the first __bread_gfp call. Signed-off-by: Christoph Hellwig Link: https://patch.msgid.link/20260511071701.2456211-8-hch@lst.de Signed-off-by: Christian Brauner (Amutable) --- fs/isofs/inode.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index efee53717f1c..337836a0a170 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c @@ -818,7 +818,8 @@ static int isofs_fill_super(struct super_block *s, struct fs_context *fc) * entries. By forcing the blocksize in this way, we ensure * that we will never be required to do this. */ - sb_set_blocksize(s, orig_zonesize); + if (!sb_set_blocksize(s, orig_zonesize)) + goto out_freesbi; sbi->s_nls_iocharset = NULL;