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Date: Thu, 22 Nov 2007 03:43:10 +0100 (CET) From: Andi Kleen <ak@...e.de> To: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, sam@...nborg.org, rusty@...tcorp.com.au Subject: [PATCH RFC] [5/9] modpost: Fix a buffer overflow in modpost When passing an file name > 1k the stack could be overflowed. Not really a security issue, but still better plugged. --- scripts/mod/modpost.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) Index: linux/scripts/mod/modpost.c =================================================================== --- linux.orig/scripts/mod/modpost.c +++ linux/scripts/mod/modpost.c @@ -1656,7 +1656,6 @@ int main(int argc, char **argv) { struct module *mod; struct buffer buf = { }; - char fname[SZ]; char *kernel_read = NULL, *module_read = NULL; char *dump_write = NULL; int opt; @@ -1709,6 +1708,8 @@ int main(int argc, char **argv) err = 0; for (mod = modules; mod; mod = mod->next) { + char fname[strlen(mod->name) + 10]; + if (mod->skip) continue; - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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