Commit 5b05d469 authored Aug 01, 2009 by Michael Buesch Committed by Len Brown Aug 01, 2009

thinkpad-acpi: restrict procfs count value to sane upper limit



Signed-off-by: Michael Buesch <mb@bu3sch.de>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>

parent 1f6fc2de

drivers/platform/x86/thinkpad_acpi.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -766,6 +766,8 @@ static int dispatch_procfs_write(struct file *file,

		if (!ibm \|\| !ibm->write)
		return -EINVAL;
		if (count > PAGE_SIZE - 2)
		return -EINVAL;

		kernbuf = kmalloc(count + 2, GFP_KERNEL);
		if (!kernbuf)