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Commit 60e28a0e authored by Krishna Manikandan's avatar Krishna Manikandan Committed by Gerrit - the friendly Code Review server
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fbdev: core: Initialise structure to prevent kernel information leak 



The structure fix is initialised before its usage to prevent
kernel information leak during copy_to_user.

Change-Id: Ice4da4c9bd6095a4387e1d16cb20ca474accb9dc
Signed-off-by: default avatarKrishna Manikandan <mkrishn@codeaurora.org>
parent 844aad38

drivers/video/fbdev/core/fbmem.c

+7 −0
Original line number Diff line number Diff line
@@ -1097,6 +1097,13 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd, 
	void __user *argp = (void __user *)arg;

	long ret = 0;



	memset(&var, 0, sizeof(var));

	memset(&fix, 0, sizeof(fix));

	memset(&con2fb, 0, sizeof(con2fb));

	memset(&cmap_from, 0, sizeof(cmap_from));

	memset(&cmap, 0, sizeof(cmap));

	memset(&event, 0, sizeof(event));



	switch (cmd) {

	case FBIOGET_VSCREENINFO:

		if (!lock_fb_info(info))