diff options
-rw-r--r-- | fs/nilfs2/ioctl.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nilfs2/ioctl.c b/fs/nilfs2/ioctl.c index 3e654273cfc2..ac258beeda3c 100644 --- a/fs/nilfs2/ioctl.c +++ b/fs/nilfs2/ioctl.c | |||
@@ -625,6 +625,9 @@ static int nilfs_ioctl_clean_segments(struct inode *inode, struct file *filp, | |||
625 | if (argv[n].v_nmembs > nsegs * nilfs->ns_blocks_per_segment) | 625 | if (argv[n].v_nmembs > nsegs * nilfs->ns_blocks_per_segment) |
626 | goto out_free; | 626 | goto out_free; |
627 | 627 | ||
628 | if (argv[n].v_nmembs >= UINT_MAX / argv[n].v_size) | ||
629 | goto out_free; | ||
630 | |||
628 | len = argv[n].v_size * argv[n].v_nmembs; | 631 | len = argv[n].v_size * argv[n].v_nmembs; |
629 | base = (void __user *)(unsigned long)argv[n].v_base; | 632 | base = (void __user *)(unsigned long)argv[n].v_base; |
630 | if (len == 0) { | 633 | if (len == 0) { |