{"id":"CVE-2025-71133","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-71133","generatedAt":"2026-10-28T04:46:20.957Z","title":"In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: avoid invalid read in irdma_net_event irdma_net_event() should not dereference anything from \"neigh\" (alias \"ptr\") until it has checked that the event is…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/irdma: avoid invalid read in irdma_net_event\n\nirdma_net_event() should not dereference anything from \"neigh\" (alias\n\"ptr\") until it has checked that the event is NETEVENT_NEIGH_UPDATE.\nOther events come with different structures pointed to by \"ptr\" and they\nmay be smaller than struct neighbour.\n\nMove the read of neigh->dev under the NETEVENT_NEIGH_UPDATE case.\n\nThe bug is mostly harmless, but it triggers KASAN on debug kernels:\n\n BUG: KASAN: stack-out-of-bounds in irdma_net_event+0x32e/0x3b0 [irdma]\n Read of size 8 at addr ffffc900075e07f0 by task kworker/27:2/542554\n\n CPU: 27 PID: 542554 Comm: kworker/27:2 Kdump: loaded Not tainted 5.14.0-630.el9.x86_64+debug #1\n Hardware name: [...]\n Workqueue: events rt6_probe_deferred\n Call Trace:\n  <IRQ>\n  dump_stack_lvl+0x60/0xb0\n  print_address_description.constprop.0+0x2c/0x3f0\n  print_report+0xb4/0x270\n  kasan_report+0x92/0xc0\n  irdma_net_event+0x32e/0x3b0 [irdma]\n  notifier_call_chain+0x9e/0x180\n  atomic_notifier_call_chain+0x5c/0x110\n  rt6_do_redirect+0xb91/0x1080\n  tcp_v6_err+0xe9b/0x13e0\n  icmpv6_notify+0x2b2/0x630\n  ndisc_redirect_rcv+0x328/0x530\n  icmpv6_rcv+0xc16/0x1360\n  ip6_protocol_deliver_rcu+0xb84/0x12e0\n  ip6_input_finish+0x117/0x240\n  ip6_input+0xc4/0x370\n  ipv6_rcv+0x420/0x7d0\n  __netif_receive_skb_one_core+0x118/0x1b0\n  process_backlog+0xd1/0x5d0\n  __napi_poll.constprop.0+0xa3/0x440\n  net_rx_action+0x78a/0xba0\n  handle_softirqs+0x2d4/0x9c0\n  do_softirq+0xad/0xe0\n  </IRQ>","published":"2026-01-14T15:16:03.000Z","lastModified":"2026-10-19T19:17:15.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":7.1,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"},"cwe":["CWE-125"],"affected":["linux/linux kernel"],"epss":{"score":0.00184,"percentile":0.07872,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/305c02e541befe4a44ffde30ed374970f41aeb6c","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6f05611728e9d0ab024832a4f1abb74a5f5d0bb0","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bf197c7c79ef6458d1ee84dd7db251b51784885f","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d9b9affd103f51b42322da4ed5ac025b560bc354","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/db93ae6fa66f1c61ae63400191195e3ee58021da","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fc23d05f0b3fb4d80657e7afebae2cae686b31c8","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-71133","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."}