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iptables-1.8.2-dont_read_garbage.patch
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File iptables-1.8.2-dont_read_garbage.patch of Package iptables
From: Fabian Vogt <fvogt@suse.com> Date: 2019-04-04 13:41:59 +0200 Subject: 'iptables -L' reads garbage References: [bsc#1106751] Upstream: reported (https://bugzilla.netfilter.org/show_bug.cgi?id=1331) This patch fixes a situation where 'iptables -L' reads garbage from the struct as the kernel never filled it in the bugged case. This can lead to issues like mapping a few TiB of memory --- Index: iptables-1.8.2/libiptc/libiptc.c =================================================================== --- iptables-1.8.2.orig/libiptc/libiptc.c +++ iptables-1.8.2/libiptc/libiptc.c @@ -1305,6 +1305,7 @@ TC_INIT(const char *tablename) { struct xtc_handle *h; STRUCT_GETINFO info; + memset(&info, 0, sizeof(info)); unsigned int tmp; socklen_t s; int sockfd;
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