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-rw-r--r--fs/isofs/inode.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index ec3fba7d492f..488a9e7f8f66 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -24,6 +24,7 @@
#include <linux/mpage.h>
#include <linux/user_namespace.h>
#include <linux/seq_file.h>
+#include <linux/blkdev.h>
#include "isofs.h"
#include "zisofs.h"
@@ -653,6 +654,12 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
/*
* What if bugger tells us to go beyond page size?
*/
+ if (bdev_logical_block_size(s->s_bdev) > 2048) {
+ printk(KERN_WARNING
+ "ISOFS: unsupported/invalid hardware sector size %d\n",
+ bdev_logical_block_size(s->s_bdev));
+ goto out_freesbi;
+ }
opt.blocksize = sb_min_blocksize(s, opt.blocksize);
sbi->s_high_sierra = 0; /* default is iso9660 */