15 lines
590 B
Diff
15 lines
590 B
Diff
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Taken from http://www.linuxfromscratch.org/lfs/view/development/chapter06/glibc.html
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--- resolv/nss_dns/dns-host.c 2015-02-06 07:40:18.000000000 +0100
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+++ resolv/nss_dns/dns-host.c 2015-04-25 17:38:58.365119958 +0200
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@@ -615,7 +615,8 @@
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int have_to_map = 0;
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uintptr_t pad = -(uintptr_t) buffer % __alignof__ (struct host_data);
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buffer += pad;
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- if (__glibc_unlikely (buflen < sizeof (struct host_data) + pad))
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+ buflen = buflen > pad ? buflen - pad : 0;
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+ if (__glibc_unlikely (buflen < sizeof (struct host_data)))
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{
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/* The buffer is too small. */
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too_small:
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