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Date: Fri, 24 Jun 2005 11:02:42 -0400
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Subject: stack smash gcc
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From: Justin Pryzby <[EMAIL PROTECTED]>
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Package: gcc-3.3
Severity: normal
Tags: security
When compilation of the included C program is attempted with "gcc
-std=gnu99 usnoquery.c.FREEZE.c", the compilation stalls, apparently
indefinitely.
Tagged security because it supposedly involves a stack smash:
#47 0xb7f15c43 in malloc () from /lib/tls/libc.so.6
Previous frame inner to this frame (corrupt stack?)
valgrind doesn't report any invalid accesses, nor does MALLOC_CHECK_
reveal anything useful.
Justin
(Note that this code fragment is the result of deleting lots of other
code, in an attempt to discover the minimal test case. Right now, the
code doesn't make much sense, and I know that.)
#include <string.h>
int main(int argc, char **t)
{
#define UNEXPT_URL(s) do {\
foo();\
}
UNEXPT_URL("");
UNEXPT_URL(t);
if (strcmp(t, "_fch.html")) UNEXPT_URL();
}
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To: [EMAIL PROTECTED]
Subject: Bug#315667: stack smash gcc
From: Falk Hueffner <[EMAIL PROTECTED]>
X-Face: "iUeUu$b*W_"w?tV83Y3*r:`rh&dRv}$YnZ3,LVeCZSYVuf[Gpo*5%_=/\_!gc_,SS}[~xZ
wY77I-M)xHIx:2f56g%/`SOw"Dx%4Xq0&f\Tj~>|QR|vGlU}TBYhiG(K:2<T^
Date: Wed, 07 Sep 2005 23:15:04 +0200
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Version: 3.4.4-8
Package: gcc-3.4
This is fixed in gcc 3.4, so let's close it like the other 3.3 only
bugs.
--
Falk
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