Re: NULL terminate over-long /proc/kallsyms symbols

From: Andreas Schwab
Date: Wed Jul 05 2006 - 13:11:30 EST


Andreas Gruenbacher <agruen@xxxxxxx> writes:

> Index: linux-2.6.17/kernel/module.c
> ===================================================================
> --- linux-2.6.17.orig/kernel/module.c
> +++ linux-2.6.17/kernel/module.c
> @@ -1935,7 +1935,7 @@ struct module *module_get_kallsym(unsign
> if (symnum < mod->num_symtab) {
> *value = mod->symtab[symnum].st_value;
> *type = mod->symtab[symnum].st_info;
> - strncpy(namebuf,
> + strlcpy(namebuf,
> mod->strtab + mod->symtab[symnum].st_name,
> 127);

Just a minor point: you probably also want to change 127 to 128.
Unfortunately sizeof does not work here, despite the declaration.

Andreas.

--
Andreas Schwab, SuSE Labs, schwab@xxxxxxx
SuSE Linux Products GmbH, Maxfeldstraße 5, 90409 Nürnberg, Germany
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