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Commit 2a643893 authored by Devendra Naga's avatar Devendra Naga Committed by Linus Torvalds
Browse files

drivers/rtc/rtc-spear.c: fix use-after-free in spear_rtc_remove() 



`config' is freed and is then used in the rtc_device_unregister() call,
causing a kernel panic.

Signed-off-by: default avatarDevendra Naga <devendra.aaru@gmail.com>
Reviewed-by: default avatarViresh Kumar <viresh.linux@gmail.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent d8adde17

drivers/rtc/rtc-spear.c

+1 −1
Original line number Diff line number Diff line
@@ -458,12 +458,12 @@ static int __devexit spear_rtc_remove(struct platform_device *pdev) 
	clk_disable(config->clk);

	clk_put(config->clk);

	iounmap(config->ioaddr);

	kfree(config);

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (res)

		release_mem_region(res->start, resource_size(res));

	platform_set_drvdata(pdev, NULL);

	rtc_device_unregister(config->rtc);

	kfree(config);



	return 0;

}