{"id":"CVE-2026-23119","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-23119","generatedAt":"2026-10-28T02:23:09.481Z","title":"In the Linux kernel, the following vulnerability has been resolved: bonding: provide a net pointer to __skb_flow_dissect() After 3cbf4ffba5ee (\"net: plumb network namespace into __skb_flow_dissect\") we have to provide a net pointer to…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: provide a net pointer to __skb_flow_dissect()\n\nAfter 3cbf4ffba5ee (\"net: plumb network namespace into __skb_flow_dissect\")\nwe have to provide a net pointer to __skb_flow_dissect(),\neither via skb->dev, skb->sk, or a user provided pointer.\n\nIn the following case, syzbot was able to cook a bare skb.\n\nWARNING: net/core/flow_dissector.c:1131 at __skb_flow_dissect+0xb57/0x68b0 net/core/flow_dissector.c:1131, CPU#1: syz.2.1418/11053\nCall Trace:\n <TASK>\n  bond_flow_dissect drivers/net/bonding/bond_main.c:4093 [inline]\n  __bond_xmit_hash+0x2d7/0xba0 drivers/net/bonding/bond_main.c:4157\n  bond_xmit_hash_xdp drivers/net/bonding/bond_main.c:4208 [inline]\n  bond_xdp_xmit_3ad_xor_slave_get drivers/net/bonding/bond_main.c:5139 [inline]\n  bond_xdp_get_xmit_slave+0x1fd/0x710 drivers/net/bonding/bond_main.c:5515\n  xdp_master_redirect+0x13f/0x2c0 net/core/filter.c:4388\n  bpf_prog_run_xdp include/net/xdp.h:700 [inline]\n  bpf_test_run+0x6b2/0x7d0 net/bpf/test_run.c:421\n  bpf_prog_test_run_xdp+0x795/0x10e0 net/bpf/test_run.c:1390\n  bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4703\n  __sys_bpf+0x562/0x860 kernel/bpf/syscall.c:6182\n  __do_sys_bpf kernel/bpf/syscall.c:6274 [inline]\n  __se_sys_bpf kernel/bpf/syscall.c:6272 [inline]\n  __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6272\n  do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n  do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94","published":"2026-02-14T15:16:07.000Z","lastModified":"2026-10-19T19:17:38.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-476"],"affected":["linux/linux kernel"],"epss":{"score":0.00134,"percentile":0.02893,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.13%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/0efee0b992f28bd5ee01c7a86ef6a307c42eb907","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3be945abdd228fd00f6afcf8d137002867a4651b","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5f9b329096596b7e53e07d041d7fca4cbe1be752","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8e53780732ee881394406f79da5263b81eb48f7e","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bc3c8d2493c6f4d2038844dc8b7ee93de050f7fa","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/de97735a40a144974bf3896ee4cc0270db2e47db","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f4faaa1297ecf3255a8591fff2633df05bd5ec84","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23119","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}