{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/can/af_can.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "afab4655750fcb3fca359bc7d7214e3d634cdf9c",
              "status": "affected",
              "version": "4ac1feff6ea6495cbfd336f4438a6c6d140544a6",
              "versionType": "git"
            },
            {
              "lessThan": "d68fa77ee3d03bad6fe84e89759ddf7005f9e9c6",
              "status": "affected",
              "version": "1a5751d58b14195f763b8c1d9ef33fb8a93e95e7",
              "versionType": "git"
            },
            {
              "lessThan": "261178a1c2623077d62e374a75c195e6c99a6f05",
              "status": "affected",
              "version": "4e096a18867a5a989b510f6999d9c6b6622e8f7b",
              "versionType": "git"
            },
            {
              "lessThan": "a8055677b054bc2bb78beb1080fdc2dc5158c2fe",
              "status": "affected",
              "version": "4e096a18867a5a989b510f6999d9c6b6622e8f7b",
              "versionType": "git"
            },
            {
              "lessThan": "8aa59e355949442c408408c2d836e561794c40a1",
              "status": "affected",
              "version": "4e096a18867a5a989b510f6999d9c6b6622e8f7b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "96340078d50a54f6a1252c62596bc44321c8bff9",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/can/af_can.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.12"
            },
            {
              "lessThan": "5.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.225",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.155",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.79",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.225",
                  "versionStartIncluding": "5.4.110",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.155",
                  "versionStartIncluding": "5.10.28",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.79",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.9",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "5.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "5.11.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: af_can: fix NULL pointer dereference in can_rx_register()\n\nIt causes NULL pointer dereference when testing as following:\n(a) use syscall(__NR_socket, 0x10ul, 3ul, 0) to create netlink socket.\n(b) use syscall(__NR_sendmsg, ...) to create bond link device and vxcan\n    link device, and bind vxcan device to bond device (can also use\n    ifenslave command to bind vxcan device to bond device).\n(c) use syscall(__NR_socket, 0x1dul, 3ul, 1) to create CAN socket.\n(d) use syscall(__NR_bind, ...) to bind the bond device to CAN socket.\n\nThe bond device invokes the can-raw protocol registration interface to\nreceive CAN packets. However, ml_priv is not allocated to the dev,\ndev_rcv_lists is assigned to NULL in can_rx_register(). In this case,\nit will occur the NULL pointer dereference issue.\n\nThe following is the stack information:\nBUG: kernel NULL pointer dereference, address: 0000000000000008\nPGD 122a4067 P4D 122a4067 PUD 1223c067 PMD 0\nOops: 0000 [#1] PREEMPT SMP\nRIP: 0010:can_rx_register+0x12d/0x1e0\nCall Trace:\n\u003cTASK\u003e\nraw_enable_filters+0x8d/0x120\nraw_enable_allfilters+0x3b/0x130\nraw_bind+0x118/0x4f0\n__sys_bind+0x163/0x1a0\n__x64_sys_bind+0x1e/0x30\ndo_syscall_64+0x35/0x80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\n\u003c/TASK\u003e"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T12:45:18.495Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/afab4655750fcb3fca359bc7d7214e3d634cdf9c"
        },
        {
          "url": "https://git.kernel.org/stable/c/d68fa77ee3d03bad6fe84e89759ddf7005f9e9c6"
        },
        {
          "url": "https://git.kernel.org/stable/c/261178a1c2623077d62e374a75c195e6c99a6f05"
        },
        {
          "url": "https://git.kernel.org/stable/c/a8055677b054bc2bb78beb1080fdc2dc5158c2fe"
        },
        {
          "url": "https://git.kernel.org/stable/c/8aa59e355949442c408408c2d836e561794c40a1"
        }
      ],
      "title": "can: af_can: fix NULL pointer dereference in can_rx_register()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49863",
    "datePublished": "2025-05-01T14:10:16.403Z",
    "dateReserved": "2025-05-01T14:05:17.236Z",
    "dateUpdated": "2025-05-04T12:45:18.495Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49863\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-01T15:16:11.203\",\"lastModified\":\"2025-05-07T13:22:40.637\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: af_can: fix NULL pointer dereference in can_rx_register()\\n\\nIt causes NULL pointer dereference when testing as following:\\n(a) use syscall(__NR_socket, 0x10ul, 3ul, 0) to create netlink socket.\\n(b) use syscall(__NR_sendmsg, ...) to create bond link device and vxcan\\n    link device, and bind vxcan device to bond device (can also use\\n    ifenslave command to bind vxcan device to bond device).\\n(c) use syscall(__NR_socket, 0x1dul, 3ul, 1) to create CAN socket.\\n(d) use syscall(__NR_bind, ...) to bind the bond device to CAN socket.\\n\\nThe bond device invokes the can-raw protocol registration interface to\\nreceive CAN packets. However, ml_priv is not allocated to the dev,\\ndev_rcv_lists is assigned to NULL in can_rx_register(). In this case,\\nit will occur the NULL pointer dereference issue.\\n\\nThe following is the stack information:\\nBUG: kernel NULL pointer dereference, address: 0000000000000008\\nPGD 122a4067 P4D 122a4067 PUD 1223c067 PMD 0\\nOops: 0000 [#1] PREEMPT SMP\\nRIP: 0010:can_rx_register+0x12d/0x1e0\\nCall Trace:\\n\u003cTASK\u003e\\nraw_enable_filters+0x8d/0x120\\nraw_enable_allfilters+0x3b/0x130\\nraw_bind+0x118/0x4f0\\n__sys_bind+0x163/0x1a0\\n__x64_sys_bind+0x1e/0x30\\ndo_syscall_64+0x35/0x80\\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\\n\u003c/TASK\u003e\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: af_can: corrige la desreferencia del puntero NULL en can_rx_register() Provoca la desreferencia del puntero NULL cuando se prueba lo siguiente: (a) use syscall(__NR_socket, 0x10ul, 3ul, 0) para crear el socket netlink. (b) use syscall(__NR_sendmsg, ...) para crear el dispositivo de enlace de enlace y el dispositivo de enlace vxcan, y enlace el dispositivo vxcan al dispositivo de enlace (tambi\u00e9n puede usar el comando ifenslave para enlazar el dispositivo vxcan al dispositivo de enlace). (c) use syscall(__NR_socket, 0x1dul, 3ul, 1) para crear el socket CAN. (d) use syscall(__NR_bind, ...) para enlazar el dispositivo de enlace al socket CAN. El dispositivo de enlace invoca la interfaz de registro del protocolo can-raw para recibir paquetes CAN. Sin embargo, ml_priv no est\u00e1 asignado a dev, y dev_rcv_lists est\u00e1 asignado a NULL en can_rx_register(). En este caso, se producir\u00e1 el problema de desreferencia del puntero NULL. La siguiente es la informaci\u00f3n de la pila: ERROR: desreferencia de puntero NULL del n\u00facleo, direcci\u00f3n: 0000000000000008 PGD 122a4067 P4D 122a4067 PUD 1223c067 PMD 0 Oops: 0000 [#1] PREEMPT SMP RIP: 0010:can_rx_register+0x12d/0x1e0 Seguimiento de llamadas:  raw_enable_filters+0x8d/0x120 raw_enable_allfilters+0x3b/0x130 raw_bind+0x118/0x4f0 __sys_bind+0x163/0x1a0 __x64_sys_bind+0x1e/0x30 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd  \"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.4.110\",\"versionEndExcluding\":\"5.4.225\",\"matchCriteriaId\":\"E1A52173-A8BD-49E9-BEB7-8D25B75EFE1A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.10.28\",\"versionEndExcluding\":\"5.10.155\",\"matchCriteriaId\":\"3D49A70C-7ED1-4708-8946-17E22BF9D515\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11.12\",\"versionEndExcluding\":\"5.15.79\",\"matchCriteriaId\":\"6658878A-B87A-4728-80EB-30A1E6DE8B99\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.0.9\",\"matchCriteriaId\":\"C3F26709-7D49-4AF0-8145-46CCF4E8E2AD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"22BEDD49-2C6D-402D-9DBF-6646F6ECD10B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"DF73CB2A-DFFD-46FB-9BFE-AA394F27EA37\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"52048DDA-FC5A-4363-95A0-A6357B4D7F8C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"A06B2CCF-3F43-4FA9-8773-C83C3F5764B2\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/261178a1c2623077d62e374a75c195e6c99a6f05\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/8aa59e355949442c408408c2d836e561794c40a1\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a8055677b054bc2bb78beb1080fdc2dc5158c2fe\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/afab4655750fcb3fca359bc7d7214e3d634cdf9c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d68fa77ee3d03bad6fe84e89759ddf7005f9e9c6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
  }
}