patches/uClibc/0.9.30/150-getaddrinfo-segfault-ipv6-and-ipv4.patch
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Sat Jan 04 01:02:57 2014 +0100 (2014-01-04)
changeset 3271 c65dc9b98841
permissions -rw-r--r--
cc/gcc: diable libsanitizer without NPTL

gcc-4.8 comes with a new library to sanitise memory access:
- heap-, stack-, and global-buffer overflow, use-after-free
- data-races between threads

This library requires some _np parts of the API, which are not
implemented in the (old) LinuxThreads, which is still available
in uClibc.

Since NPTL requires a i486 or above, i386 are stuck with using LT,
which precludes building the libsanitizer.

Disable libsanitizer, a bit like libatomic is.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Niels Penneman <niels@penneman.org>
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From: Tomoyoshi ASANO <asa@lineo.co.jp>
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Message ID: <20081208073522.0AEF.22C34B8C@lineo.co.jp>
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Hello,
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I have SEGV at busybox's telnet with uClibc-0.9.30.
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It seem the current uClibc-trunk has the same problem.
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Thanks,
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-- Tom
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diff -ru uClibc-0.9.30.orig/libc/inet/getaddrinfo.c uClibc-0.9.30/libc/inet/getaddrinfo.c
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--- uClibc-0.9.30.orig/libc/inet/getaddrinfo.c	2008-10-28 17:25:10.000000000 +0100
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+++ uClibc-0.9.30/libc/inet/getaddrinfo.c	2009-02-26 14:20:06.000000000 +0100
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@@ -186,7 +186,7 @@
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 			return seen;
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 		}
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-		for (runp = ifa; runp != NULL; runp = runp->ifa_next)
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+		for (runp = ifa; runp != NULL; runp = runp->ifa_next) {
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 #if defined __UCLIBC_HAS_IPV4__
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 			if (runp->ifa_addr->sa_family == PF_INET)
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 				seen |= SEEN_IPV4;
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@@ -195,7 +195,7 @@
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 			if (runp->ifa_addr->sa_family == PF_INET6)
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 				seen |= SEEN_IPV6;
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 #endif /* __UCLIBC_HAS_IPV6__ */
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-
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+                }
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 		freeifaddrs(ifa);
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 	}
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 #else