Commit b6e7aeea authored by Christophe JAILLET's avatar Christophe JAILLET Committed by Felipe Balbi

USB: gadgetfs: Fix a potential memory leak in 'dev_config()'

'kbuf' is allocated just a few lines above using 'memdup_user()'.
If the 'if (dev->buf)' test fails, this memory is never released.
Signed-off-by: default avatarChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent 42428202
...@@ -1782,8 +1782,10 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) ...@@ -1782,8 +1782,10 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
spin_lock_irq (&dev->lock); spin_lock_irq (&dev->lock);
value = -EINVAL; value = -EINVAL;
if (dev->buf) if (dev->buf) {
kfree(kbuf);
goto fail; goto fail;
}
dev->buf = kbuf; dev->buf = kbuf;
/* full or low speed config */ /* full or low speed config */
......
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