cve/published/2025/CVE-2025-22103.json

{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: fix NULL pointer dereference in l3mdev_l3_rcv\n\nWhen delete l3s ipvlan:\n\n    ip link del link eth0 ipvlan1 type ipvlan mode l3s\n\nThis may cause a null pointer dereference:\n\n    Call trace:\n     ip_rcv_finish+0x48/0xd0\n     ip_rcv+0x5c/0x100\n     __netif_receive_skb_one_core+0x64/0xb0\n     __netif_receive_skb+0x20/0x80\n     process_backlog+0xb4/0x204\n     napi_poll+0xe8/0x294\n     net_rx_action+0xd8/0x22c\n     __do_softirq+0x12c/0x354\n\nThis is because l3mdev_l3_rcv() visit dev->l3mdev_ops after\nipvlan_l3s_unregister() assign the dev->l3mdev_ops to NULL. The process\nlike this:\n\n    (CPU1)                     | (CPU2)\n    l3mdev_l3_rcv()            |\n      check dev->priv_flags:   |\n        master = skb->dev;     |\n                               |\n                               | ipvlan_l3s_unregister()\n                               |   set dev->priv_flags\n                               |   dev->l3mdev_ops = NULL;\n                               |\n      visit master->l3mdev_ops |\n\nTo avoid this by do not set dev->l3mdev_ops when unregister l3s ipvlan."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/net/ipvlan/ipvlan_l3s.c"
               ],
               "versions": [
                  {
                     "version": "c675e06a98a474f7ad0af32ce467613da818da52",
                     "lessThan": "f9dff65140efc289f01bcf39c3ca66a8806b6132",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "c675e06a98a474f7ad0af32ce467613da818da52",
                     "lessThan": "0032c99e83b9ce6d5995d65900aa4b6ffb501cce",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/net/ipvlan/ipvlan_l3s.c"
               ],
               "versions": [
                  {
                     "version": "5.1",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.1",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.14.2",
                     "lessThanOrEqual": "6.14.*",
                     "status": "unaffected",
                     "versionType": "semver"
                  },
                  {
                     "version": "6.15",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "cpeApplicability": [
            {
               "nodes": [
                  {
                     "operator": "OR",
                     "negate": false,
                     "cpeMatch": [
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.1",
                           "versionEndExcluding": "6.14.2"
                        },
                        {
                           "vulnerable": true,
                           "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                           "versionStartIncluding": "5.1",
                           "versionEndExcluding": "6.15"
                        }
                     ]
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/f9dff65140efc289f01bcf39c3ca66a8806b6132"
            },
            {
               "url": "https://git.kernel.org/stable/c/0032c99e83b9ce6d5995d65900aa4b6ffb501cce"
            }
         ],
         "title": "net: fix NULL pointer dereference in l3mdev_l3_rcv",
         "x_generator": {
            "engine": "bippy-1.2.0"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2025-22103",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}