{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"c99ca049e910d61ddbd28cc2c47242f2bfbb4970","status":"affected","version":"879af96ffd72706c6e3278ea6b45b0b0e37ec5d7","versionType":"git"},{"lessThan":"e2a56441233131fe18a76001de347ecda217e40c","status":"affected","version":"879af96ffd72706c6e3278ea6b45b0b0e37ec5d7","versionType":"git"},{"lessThan":"3876318ea54e83eb70982b8280a3c5e4e32269bf","status":"affected","version":"879af96ffd72706c6e3278ea6b45b0b0e37ec5d7","versionType":"git"},{"lessThan":"4edbcacca09f92b85d3951b6add11894b20a84bc","status":"affected","version":"879af96ffd72706c6e3278ea6b45b0b0e37ec5d7","versionType":"git"},{"lessThan":"03b743586a2469744e96e9c1015096d07240935d","status":"affected","version":"879af96ffd72706c6e3278ea6b45b0b0e37ec5d7","versionType":"git"},{"lessThan":"89c103d702b25ceb2d097faf854deb47b53b17ff","status":"affected","version":"879af96ffd72706c6e3278ea6b45b0b0e37ec5d7","versionType":"git"},{"lessThan":"e82d8cc4321c373dc46e741cd2dfdaa7921fddb7","status":"affected","version":"879af96ffd72706c6e3278ea6b45b0b0e37ec5d7","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"status":"affected","version":"5.15"},{"lessThan":"5.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.97","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.7","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.7","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.7","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.7","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.6","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.7","versionType":"custom"}]}],"cveId":"CVE-2026-64545","cwes":["CWE-476"],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet, bpf: check master for NULL in xdp_master_redirect()\n\nxdp_master_redirect() dereferences the result of\nnetdev_master_upper_dev_get_rcu() without a NULL check, but that helper\nreturns NULL when the receiving device has no upper-master adjacency.\n\nThe reach guard only checks netif_is_bond_slave(). On bond slave release\nbond_upper_dev_unlink() drops the upper-master adjacency before clearing\nIFF_SLAVE, so an XDP_TX reaching xdp_master_redirect() in that window\nstill passes netif_is_bond_slave() while master is already NULL, and\nfaults on master->flags at offset 0xb0:\n\n  BUG: kernel NULL pointer dereference, address: 00000000000000b0\n  RIP: 0010:xdp_master_redirect (net/core/filter.c:4432)\n  Call Trace:\n   xdp_master_redirect (net/core/filter.c:4432)\n   bpf_prog_run_generic_xdp (include/net/xdp.h:700)\n   do_xdp_generic (net/core/dev.c:5608)\n   __netif_receive_skb_one_core (net/core/dev.c:6204)\n   process_backlog (net/core/dev.c:6319)\n   __napi_poll (net/core/dev.c:7729)\n   net_rx_action (net/core/dev.c:7792)\n   handle_softirqs (kernel/softirq.c:622)\n   __dev_queue_xmit (include/linux/bottom_half.h:33)\n   packet_sendmsg (net/packet/af_packet.c:3082)\n   __sys_sendto (net/socket.c:2252)\n  Kernel panic - not syncing: Fatal exception in interrupt\n\nThe missing check dates back to the original code; commit 1921f91298d1\n(\"net, bpf: fix null-ptr-deref in xdp_master_redirect() for down master\")\nlater added the master->flags read where the fault now lands but kept the\nunconditional deref. Check master for NULL before use; a NULL master is\ntreated the same as one that is not up.","epss":{"date":"2026-11-09","percentile":0.47897,"score":0.00578},"exploits":[],"kev":null,"metrics":[{"score":7.5,"severity":"high","source":"CNA: Linux","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},{"score":7.5,"severity":"high","source":"NVD: 416baaa9-dc9f-4396-8d5f-8c081fb06d67","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1794314969619,"publishedAt":1785183036659,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/c99ca049e910d61ddbd28cc2c47242f2bfbb4970"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/e2a56441233131fe18a76001de347ecda217e40c"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/3876318ea54e83eb70982b8280a3c5e4e32269bf"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/4edbcacca09f92b85d3951b6add11894b20a84bc"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/03b743586a2469744e96e9c1015096d07240935d"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/89c103d702b25ceb2d097faf854deb47b53b17ff"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/e82d8cc4321c373dc46e741cd2dfdaa7921fddb7"},{"source":"ADP: siemens-SADP","tags":[],"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html"},{"source":"ADP: siemens-SADP","tags":[],"url":"https://cert-portal.siemens.com/productcert/html/ssa-457936.html"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/03b743586a2469744e96e9c1015096d07240935d"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/3876318ea54e83eb70982b8280a3c5e4e32269bf"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/4edbcacca09f92b85d3951b6add11894b20a84bc"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/89c103d702b25ceb2d097faf854deb47b53b17ff"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/c99ca049e910d61ddbd28cc2c47242f2bfbb4970"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/e2a56441233131fe18a76001de347ecda217e40c"},{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"url":"https://git.kernel.org/stable/c/e82d8cc4321c373dc46e741cd2dfdaa7921fddb7"},{"source":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","tags":[],"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html"},{"source":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e","tags":[],"url":"https://cert-portal.siemens.com/productcert/html/ssa-457936.html"}],"remediation":[],"revision":"033b8aad5fa82933509fcab81f118683e9c0e471d548c907a88cd971ad6362b0","sources":[{"modifiedAt":1794314969619,"name":"CNA: Linux","retrievedAt":1794316742808,"url":"https://www.cve.org/CVERecord?id=CVE-2026-64545"},{"modifiedAt":1793729739353,"name":"NVD","retrievedAt":1793751417946,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64545"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794291544451,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-64545"}],"ssvc":{"assessedAt":1792165334941,"automatable":"yes","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"net, bpf: check master for NULL in xdp_master_redirect()","updatedAt":1794316742808}