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SUSE:SLE-12-SP5:GA
libnl-1_1
libnl-1_1-fix-elevation-of-privilege-vulnerabil...
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File libnl-1_1-fix-elevation-of-privilege-vulnerability.patch of Package libnl-1_1
diff -Nurp libnl-1.1.4-orig/lib/attr.c libnl-1.1.4/lib/attr.c --- libnl-1.1.4-orig/lib/attr.c 2013-04-28 13:11:42.000000000 +0200 +++ libnl-1.1.4/lib/attr.c 2022-08-05 09:53:12.407938878 +0200 @@ -476,6 +476,9 @@ struct nlattr *nla_reserve(struct nl_msg struct nlattr *nla; int tlen; + if (attrlen < 0) + return NULL; + tlen = NLMSG_ALIGN(n->nm_nlh->nlmsg_len) + nla_total_size(attrlen); if (tlen > n->nm_size) { @@ -513,8 +516,12 @@ int nla_put(struct nl_msg *n, int attrty struct nlattr *nla; nla = nla_reserve(n, attrtype, attrlen); - if (!nla) + if (!nla) { + if (attrlen < 0) + return nl_errno(EINVAL); + return nl_errno(ENOMEM); + } memcpy(nla_data(nla), data, attrlen); NL_DBG(2, "msg %p: Wrote %d bytes at offset +%td for attr %d\n",
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