{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"31e010a106ff6cd8ccac4bfee547fd3fa1015574","status":"affected","version":"571912c69f0ed731bd1e071ade9dc7ca4aa52065","versionType":"git"},{"lessThan":"55193df8d6d33318435f19572bf5ea47a22eee28","status":"affected","version":"571912c69f0ed731bd1e071ade9dc7ca4aa52065","versionType":"git"},{"lessThan":"51eef9c072aa3405a6823a96ae666d38a3b48750","status":"affected","version":"571912c69f0ed731bd1e071ade9dc7ca4aa52065","versionType":"git"},{"lessThan":"a0f4e4e8e0f5e24ddd83e3d1221732621cf34636","status":"affected","version":"571912c69f0ed731bd1e071ade9dc7ca4aa52065","versionType":"git"},{"lessThan":"35a115a204be08f97450b0389413e218268ef4a2","status":"affected","version":"571912c69f0ed731bd1e071ade9dc7ca4aa52065","versionType":"git"},{"lessThan":"74a02921c48fcd35a7881956c9e5c52b86595f5d","status":"affected","version":"571912c69f0ed731bd1e071ade9dc7ca4aa52065","versionType":"git"},{"lessThan":"638905520fc4fae6a80991563f264131545ba3df","status":"affected","version":"571912c69f0ed731bd1e071ade9dc7ca4aa52065","versionType":"git"},{"lessThan":"aa6c6d9ee064aabfede4402fd1283424e649ca19","status":"affected","version":"571912c69f0ed731bd1e071ade9dc7ca4aa52065","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"status":"affected","version":"5.7"},{"lessThan":"5.7","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.141","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.91","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cveId":"CVE-2026-45846","cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst()\n\nbareudp_fill_metadata_dst() passes bareudp->sock to\nudp_tunnel6_dst_lookup() in the IPv6 path without a NULL check.\nThe socket is only created in bareudp_open() and NULLed in\nbareudp_stop(), so calling this function while the device is down\ntriggers a NULL dereference via sock->sk.\n\n BUG: kernel NULL pointer dereference, address: 0000000000000018\n RIP: 0010:udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:160)\n Call Trace:\n  <TASK>\n  bareudp_fill_metadata_dst (drivers/net/bareudp.c:532)\n  do_execute_actions (net/openvswitch/actions.c:901)\n  ovs_execute_actions (net/openvswitch/actions.c:1589)\n  ovs_packet_cmd_execute (net/openvswitch/datapath.c:700)\n  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)\n  genl_rcv_msg (net/netlink/genetlink.c:1209)\n  netlink_rcv_skb (net/netlink/af_netlink.c:2550)\n  </TASK>\n\nAdd a NULL check returning -ESHUTDOWN, consistent with the xmit paths\nin the same driver.","epss":{"date":"2026-11-06","percentile":0.02395,"score":0.00127},"exploits":[],"kev":null,"metrics":[],"modifiedAt":1793979779576,"publishedAt":1779873892122,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/31e010a106ff6cd8ccac4bfee547fd3fa1015574"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/55193df8d6d33318435f19572bf5ea47a22eee28"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/51eef9c072aa3405a6823a96ae666d38a3b48750"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/a0f4e4e8e0f5e24ddd83e3d1221732621cf34636"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/35a115a204be08f97450b0389413e218268ef4a2"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/74a02921c48fcd35a7881956c9e5c52b86595f5d"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/638905520fc4fae6a80991563f264131545ba3df"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/aa6c6d9ee064aabfede4402fd1283424e649ca19"}],"remediation":[],"revision":"2447d9a5de8324c7a2e8e59e852e5a32adc0e0834ea32e97dff70f7ce4d2481e","sources":[{"modifiedAt":1793979779576,"name":"CNA: Linux","retrievedAt":1793981745907,"url":"https://www.cve.org/CVERecord?id=CVE-2026-45846"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793981758903,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-45846"}],"ssvc":{"assessedAt":1793979731877,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"bareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst()","updatedAt":1793981758903}