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Re: issue in the kernel parsing with multiple arguments
- From: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
- Date: Mon, 10 Jan 2005 14:10:22 +1100
- References: <F760B14C9561B941B89469F59BA3A84708A8E225@orsmsx401.amr.corp.intel.com>
On Fri, 2005-01-07 at 16:31 -0800, Godse, Radheka wrote:
> Rusty,
>
> We observed a problem when loading a kernel module that accepts
> multiple arguments for single parameter. The issue happens when the
> number of the arguments exceeds the limit of the parameter.
Thanks, I've enclosed a fix for the direct problem.
Name: Catch module parameter parsing failures
Status: Tested on 2.6.10-bk12
Signed-off-by: Rusty Russell <rusty@xxxxxxxxxxxxxxx>
Radheka Godse <radheka.godse@xxxxxxxxx> pointed out that parameter
parsing failures allow a module still to be loaded. Trivial fix.
Index: linux-2.6.10-bk12-Misc/kernel/module.c
===================================================================
--- linux-2.6.10-bk12-Misc.orig/kernel/module.c 2005-01-10 13:11:54.000000000 +1100
+++ linux-2.6.10-bk12-Misc/kernel/module.c 2005-01-10 13:55:15.839488248 +1100
@@ -1706,6 +1706,9 @@
/ sizeof(struct kernel_param),
NULL);
}
+ if (err < 0)
+ goto arch_cleanup;
+
err = mod_sysfs_setup(mod,
(struct kernel_param *)
sechdrs[setupindex].sh_addr,
--
A bad analogy is like a leaky screwdriver -- Richard Braakman
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