patches/uClibc/0.9.30.1/190-fix-getaddrinfo-NULL-pointer-dereference.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Fri Nov 04 19:22:29 2011 +0100 (2011-11-04)
changeset 2735 f09ed6dd71a3
permissions -rw-r--r--
kernel/linux: fix packed attribute in exported headers

UBI headers (and maybe others as well) are broken because the 'packed'
attribute is not sanitised when the headers are exported to userspace.

Apply the fix from upstream:
https://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=f210735fe2f17a6225432ee3d1239bcf23a8659c

(Also, buildroot does the same, BTW)

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
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diff -Narup uClibc-0.9.30.1.orig/libc/inet/getaddrinfo.c uClibc-0.9.30.1/libc/inet/getaddrinfo.c
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--- uClibc-0.9.30.1.orig/libc/inet/getaddrinfo.c	2009-02-26 21:49:14.000000000 +0900
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+++ uClibc-0.9.30.1/libc/inet/getaddrinfo.c	2009-03-06 00:59:23.000000000 +0900
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@@ -187,6 +187,8 @@ static unsigned __check_pf(void)
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 		}
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 		for (runp = ifa; runp != NULL; runp = runp->ifa_next) {
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+			if (runp->ifa_addr == NULL)
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+				continue;
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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;