Messages in this thread | | | Date | Fri, 19 Feb 2010 13:44:46 +0200 | Subject | Re: [PATCH] LSM: add static to security_ops variable | From | Alexey Dobriyan <> |
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On Sun, Feb 7, 2010 at 1:24 PM, wzt wzt <wzt.wzt@gmail.com> wrote: > security_ops was declared as a global variable, so other drivers or > kernel code can easily change its value, like:
With your patch they still can.
> extern struct security_operations *security_ops; > security_ops = NULL; > > then insmod this driver immediately, it will get an oops. Other evil > drivers can aslo fake this variable as extern. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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