* [patch 3/3] btrfs: dereferencing freed memory
@ 2010-03-20 11:24 Dan Carpenter
0 siblings, 0 replies; only message in thread
From: Dan Carpenter @ 2010-03-20 11:24 UTC (permalink / raw)
To: Chris Mason
Cc: Yan Zheng, Josef Bacik, Sage Weil, Al Viro, linux-btrfs,
linux-kernel, kernel-janitors
The original code dereferenced range on the next line.
Signed-off-by: Dan Carpenter <error27@gmail.com>
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index be9b5df..d7ab56c 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1378,6 +1378,7 @@ static int btrfs_ioctl_defrag(struct file *file, void __user *argp)
sizeof(*range))) {
ret = -EFAULT;
kfree(range);
+ goto out;
}
/* compression requires us to start the IO */
if ((range->flags & BTRFS_DEFRAG_RANGE_COMPRESS)) {
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2010-03-20 11:24 [patch 3/3] btrfs: dereferencing freed memory Dan Carpenter
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