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Merge pull request #5672 from qlyoung/fix-zebra-pbr-iptable-heap-uaf
zebra: fix iptable install heap UAF
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commit
c36fbd565e
@ -652,12 +652,22 @@ static void *pbr_iptable_alloc_intern(void *arg)
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{
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struct zebra_pbr_iptable *zpi;
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struct zebra_pbr_iptable *new;
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struct listnode *ln;
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char *ifname;
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zpi = (struct zebra_pbr_iptable *)arg;
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new = XCALLOC(MTYPE_TMP, sizeof(struct zebra_pbr_iptable));
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/* Deep structure copy */
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memcpy(new, zpi, sizeof(*zpi));
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new->interface_name_list = list_new();
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if (zpi->interface_name_list) {
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for (ALL_LIST_ELEMENTS_RO(zpi->interface_name_list, ln, ifname))
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listnode_add(new->interface_name_list,
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XSTRDUP(MTYPE_PBR_IPTABLE_IFNAME, ifname));
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}
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return new;
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}
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