CVE-2025-38271 (GCVE-0-2025-38271)
Vulnerability from cvelistv5
Published
2025-07-10 07:41
Modified
2025-07-28 04:16
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: prevent a NULL deref in rtnl_create_link()
At the time rtnl_create_link() is running, dev->netdev_ops is NULL,
we must not use netdev_lock_ops() or risk a NULL deref if
CONFIG_NET_SHAPER is defined.
Use netif_set_group() instead of dev_set_group().
RIP: 0010:netdev_need_ops_lock include/net/netdev_lock.h:33 [inline]
RIP: 0010:netdev_lock_ops include/net/netdev_lock.h:41 [inline]
RIP: 0010:dev_set_group+0xc0/0x230 net/core/dev_api.c:82
Call Trace:
<TASK>
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 [inline]
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 [inline]
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 [inline]
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/core/rtnetlink.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "8a29ae8428a5c26f0b4471c2057d9e9415c53109",
"status": "affected",
"version": "7e4d784f5810bba76c4593791028e13cce4af547",
"versionType": "git"
},
{
"lessThan": "feafc73f3e6ae73371777a037d41d2e31c929636",
"status": "affected",
"version": "7e4d784f5810bba76c4593791028e13cce4af547",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/core/rtnetlink.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.15"
},
{
"lessThan": "6.15",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"version": "6.15.3",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.15.3",
"versionStartIncluding": "6.15",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16",
"versionStartIncluding": "6.15",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"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-\u003enetdev_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 \u003cTASK\u003e\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]"
}
],
"providerMetadata": {
"dateUpdated": "2025-07-28T04:16:52.653Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/8a29ae8428a5c26f0b4471c2057d9e9415c53109"
},
{
"url": "https://git.kernel.org/stable/c/feafc73f3e6ae73371777a037d41d2e31c929636"
}
],
"title": "net: prevent a NULL deref in rtnl_create_link()",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38271",
"datePublished": "2025-07-10T07:41:53.126Z",
"dateReserved": "2025-04-16T04:51:23.998Z",
"dateUpdated": "2025-07-28T04:16:52.653Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-38271\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-10T08:15:25.307\",\"lastModified\":\"2025-07-10T13:17:30.017\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"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-\u003enetdev_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 \u003cTASK\u003e\\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-\u0026gt;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]\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/8a29ae8428a5c26f0b4471c2057d9e9415c53109\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/feafc73f3e6ae73371777a037d41d2e31c929636\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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