jbd2: fix use after free in jbd2_log_do_checkpoint()

[linux.git] / fs / isofs / inode.c

diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index ec3fba7d492f483e14accbfd98d5b63550f2591c..488a9e7f8f66020f4424b322db62eacdcbbdd057 100644 (file)
--- 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 */