[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-DEBIAN-CVE-2026-23111":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-04T14:53:31.930Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":23,"related":24,"reserved_at":9,"published_at":25,"modified_at":26,"state":9,"summary":27,"references_raw":29,"kevs":36,"epss":9,"epss_history":37,"metrics":38,"affected":45},"DEBIAN-CVE-2026-23111","In the Linux kernel, the following vulnerability has been resolved:  netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate()  nft_map_catchall_activate() has an inverted element activity check compared to its non-catchall counterpart nft_mapelem_activate() and compared to what is logically required.  nft_map_catchall_activate() is called from the abort path to re-activate catchall map elements that were deactivated during a failed transaction. It should skip elements that are already active (they don't need re-activation) and process elements that are inactive (they need to be restored). Instead, the current code does the opposite: it skips inactive elements and processes active ones.  Compare the non-catchall activate callback, which is correct:    nft_mapelem_activate():     if (nft_set_elem_active(ext, iter->genmask))         return 0;   /* skip active, process inactive */  With the buggy catchall version:    nft_map_catchall_activate():     if (!nft_set_elem_active(ext, genmask))         continue;   /* skip inactive, process active */  The consequence is that when a DELSET operation is aborted, nft_setelem_data_activate() is never called for the catchall element. For NFT_GOTO verdict elements, this means nft_data_hold() is never called to restore the chain->use reference count. Each abort cycle permanently decrements chain->use. Once chain->use reaches zero, DELCHAIN succeeds and frees the chain while catchall verdict elements still reference it, resulting in a use-after-free.  This is exploitable for local privilege escalation from an unprivileged user via user namespaces + nftables on distributions that enable CONFIG_USER_NS and CONFIG_NF_TABLES.  Fix by removing the negation so the check matches nft_mapelem_activate(): skip active elements, process inactive ones.",null,[],[],[],[14],{"_key":15},"CVE-2026-23111",[17,19,21],{"_key":18},"DSA-6141-1",{"_key":20},"DLA-4499-1",{"_key":22},"DSA-6163-1",[],[],"2026-02-13T14:16:10.283Z","2026-04-28T20:31:11.716141Z",{"cisa_kev":28,"cisa_ransomware":28,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":9,"severity_score":9,"severity_version":9,"severity_source":9,"severity_vector":9,"severity_status":9},false,[30],{"url":31,"sources":32,"tags":34},"https://security-tracker.debian.org/tracker/CVE-2026-23111",[33],"osv_debian",[35],"Advisory",[],[],[39],{"source":33,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":40,"cvss_v4_0":9},{"baseScore":41,"baseSeverity":9,"vectorString":42,"impactScore":43,"exploitabilityScore":44},7.8,"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",9.8,4.6,[46,69],{"ecosystem":47,"name":48,"vendor":49,"product":48,"cpe_part":9,"purl_type":50,"purl_namespace":49,"purl_name":48,"source":9,"versions":51},"Debian","linux","debian","deb",[52,56,57,58,59,63,66],{"version":53,"is_range":54,"range_type":55,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},"all",true,"ecosystem",{"version":53,"is_range":54,"range_type":55,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":53,"is_range":54,"range_type":55,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":53,"is_range":54,"range_type":55,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":60,"is_range":54,"range_type":55,"version_start":9,"version_start_type":9,"version_end":61,"version_end_type":62,"fixed_in":9},"lt6_1_164_1","6.1.164-1","excluding",{"version":64,"is_range":54,"range_type":55,"version_start":9,"version_start_type":9,"version_end":65,"version_end_type":62,"fixed_in":9},"lt6_12_73_1","6.12.73-1",{"version":67,"is_range":54,"range_type":55,"version_start":9,"version_start_type":9,"version_end":68,"version_end_type":62,"fixed_in":9},"lt6_18_10_1","6.18.10-1",{"ecosystem":47,"name":70,"vendor":49,"product":70,"cpe_part":9,"purl_type":50,"purl_namespace":49,"purl_name":70,"source":9,"versions":71},"linux-6.1",[72],{"version":73,"is_range":54,"range_type":55,"version_start":9,"version_start_type":9,"version_end":74,"version_end_type":62,"fixed_in":9},"lt6_1_164_1~deb11u1","6.1.164-1~deb11u1"]