CVE-2025-71133
Full vulnerability record from the local CVENow database.
Description
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 NETEVENT_NEIGH_UPDATE. Other events come with different structures pointed to by "ptr" and they may be smaller than struct neighbour. Move the read of neigh->dev under the NETEVENT_NEIGH_UPDATE case. The bug is mostly harmless, but it triggers KASAN on debug kernels: BUG: KASAN: stack-out-of-bounds in irdma_net_event+0x32e/0x3b0 [irdma] Read of size 8 at addr ffffc900075e07f0 by task kworker/27:2/542554 CPU: 27 PID: 542554 Comm: kworker/27:2 Kdump: loaded Not tainted 5.14.0-630.el9.x86_64+debug #1 Hardware name: [...] Workqueue: events rt6_probe_deferred Call Trace: <IRQ> dump_stack_lvl+0x60/0xb0 print_address_description.constprop.0+0x2c/0x3f0 print_report+0xb4/0x270 kasan_report+0x92/0xc0 irdma_net_event+0x32e/0x3b0 [irdma] notifier_call_chain+0x9e/0x180 atomic_notifier_call_chain+0x5c/0x110 rt6_do_redirect+0xb91/0x1080 tcp_v6_err+0xe9b/0x13e0 icmpv6_notify+0x2b2/0x630 ndisc_redirect_rcv+0x328/0x530 icmpv6_rcv+0xc16/0x1360 ip6_protocol_deliver_rcu+0xb84/0x12e0 ip6_input_finish+0x117/0x240 ip6_input+0xc4/0x370 ipv6_rcv+0x420/0x7d0 __netif_receive_skb_one_core+0x118/0x1b0 process_backlog+0xd1/0x5d0 __napi_poll.constprop.0+0xa3/0x440 net_rx_action+0x78a/0xba0 handle_softirqs+0x2d4/0x9c0 do_softirq+0xad/0xe0 </IRQ>
Severity
HIGH
CVSS score
7.1
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-01-14 15:16:03.053000
Last modified
2026-10-19 19:17:15.263000
View original CVE JSON
{
"id": "CVE-2025-71133",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-01-14T15:16:03.053",
"lastModified": "2026-10-19T19:17:15.263",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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>"
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nRDMA/irdma: evitar lectura inválida en irdma_net_event\n\nirdma_net_event() no debería desreferenciar nada de 'neigh' (alias 'ptr') hasta que haya comprobado que el evento es NETEVENT_NEIGH_UPDATE. Otros eventos vienen con diferentes estructuras apuntadas por 'ptr' y pueden ser más pequeñas que struct neighbour.\n\nMover la lectura de neigh->dev bajo el caso NETEVENT_NEIGH_UPDATE.\n\nEl error es mayormente inofensivo, pero activa KASAN en kernels de depuración:\n\n ERROR: KASAN: desbordamiento de pila en irdma_net_event+0x32e/0x3b0 [irdma]\n Lectura de tamaño 8 en la dirección ffffc900075e07f0 por la tarea 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 Rastro de Llamada:\n \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 "
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"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
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"id": "CVE-2025-71133",
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