CVE-2025-38271

{"id": "CVE-2025-38271", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-07-10T08:15:25.307", "references": [{"url": "https://git.kernel.org/stable/c/8a29ae8428a5c26f0b4471c2057d9e9415c53109", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/feafc73f3e6ae73371777a037d41d2e31c929636", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: prevent a NULL deref in rtnl_create_link()\n\nAt the time rtnl_create_link() is running, dev->netdev_ops is NULL,\nwe must not use netdev_lock_ops() or risk a NULL deref if\nCONFIG_NET_SHAPER is defined.\n\nUse netif_set_group() instead of dev_set_group().\n\n RIP: 0010:netdev_need_ops_lock include/net/netdev_lock.h:33 [inline]\n RIP: 0010:netdev_lock_ops include/net/netdev_lock.h:41 [inline]\n RIP: 0010:dev_set_group+0xc0/0x230 net/core/dev_api.c:82\nCall Trace:\n <TASK>\n rtnl_create_link+0x748/0xd10 net/core/rtnetlink.c:3674\n rtnl_newlink_create+0x25c/0xb00 net/core/rtnetlink.c:3813\n __rtnl_newlink net/core/rtnetlink.c:3940 [inline]\n rtnl_newlink+0x16d6/0x1c70 net/core/rtnetlink.c:4055\n rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6944\n netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2534\n netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]\n netlink_unicast+0x75b/0x8d0 net/netlink/af_netlink.c:1339\n netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1883\n sock_sendmsg_nosec net/socket.c:712 [inline]"}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: impide una desreferencia NULL en rtnl_create_link(). Mientras rtnl_create_link() se ejecuta, dev-&gt;netdev_ops es NULL. No debemos usar netdev_lock_ops() o corremos el riesgo de una desreferencia NULL si CONFIG_NET_SHAPER est\u00e1 definido. Use netif_set_group() en lugar de dev_set_group(). RIP: 0010:netdev_need_ops_lock include/net/netdev_lock.h:33 [en l\u00ednea] RIP: 0010:netdev_lock_ops include/net/netdev_lock.h:41 [en l\u00ednea] RIP: 0010:dev_set_group+0xc0/0x230 net/core/dev_api.c:82 Rastreo de llamadas: rtnl_create_link+0x748/0xd10 net/core/rtnetlink.c:3674 rtnl_newlink_create+0x25c/0xb00 net/core/rtnetlink.c:3813 __rtnl_newlink net/core/rtnetlink.c:3940 [en l\u00ednea] rtnl_newlink+0x16d6/0x1c70 net/core/rtnetlink.c:4055 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6944 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2534 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [en l\u00ednea] netlink_unicast+0x75b/0x8d0 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [en l\u00ednea]"}], "lastModified": "2025-11-20T16:53:50.167", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "658B94DB-A94A-4588-94DD-614A72725C45", "versionEndExcluding": "6.15.3", "versionStartIncluding": "6.15"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}