CVE-2024-46771 (GCVE-0-2024-46771)

Vulnerability from cvelistv5 – Published: 2024-09-18 07:12 – Updated: 2026-05-11 20:36
VLAI
Title
can: bcm: Remove proc entry when dev is unregistered.
Summary
In the Linux kernel, the following vulnerability has been resolved: can: bcm: Remove proc entry when dev is unregistered. syzkaller reported a warning in bcm_connect() below. [0] The repro calls connect() to vxcan1, removes vxcan1, and calls connect() with ifindex == 0. Calling connect() for a BCM socket allocates a proc entry. Then, bcm_sk(sk)->bound is set to 1 to prevent further connect(). However, removing the bound device resets bcm_sk(sk)->bound to 0 in bcm_notify(). The 2nd connect() tries to allocate a proc entry with the same name and sets NULL to bcm_sk(sk)->bcm_proc_read, leaking the original proc entry. Since the proc entry is available only for connect()ed sockets, let's clean up the entry when the bound netdev is unregistered. [0]: proc_dir_entry 'can-bcm/2456' already registered WARNING: CPU: 1 PID: 394 at fs/proc/generic.c:376 proc_register+0x645/0x8f0 fs/proc/generic.c:375 Modules linked in: CPU: 1 PID: 394 Comm: syz-executor403 Not tainted 6.10.0-rc7-g852e42cc2dd4 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 RIP: 0010:proc_register+0x645/0x8f0 fs/proc/generic.c:375 Code: 00 00 00 00 00 48 85 ed 0f 85 97 02 00 00 4d 85 f6 0f 85 9f 02 00 00 48 c7 c7 9b cb cf 87 48 89 de 4c 89 fa e8 1c 6f eb fe 90 <0f> 0b 90 90 48 c7 c7 98 37 99 89 e8 cb 7e 22 05 bb 00 00 00 10 48 RSP: 0018:ffa0000000cd7c30 EFLAGS: 00010246 RAX: 9e129be1950f0200 RBX: ff1100011b51582c RCX: ff1100011857cd80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: 0000000000000000 R08: ffd400000000000f R09: ff1100013e78cac0 R10: ffac800000cd7980 R11: ff1100013e12b1f0 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ff1100011a99a2ec FS: 00007fbd7086f740(0000) GS:ff1100013fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200071c0 CR3: 0000000118556004 CR4: 0000000000771ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> proc_create_net_single+0x144/0x210 fs/proc/proc_net.c:220 bcm_connect+0x472/0x840 net/can/bcm.c:1673 __sys_connect_file net/socket.c:2049 [inline] __sys_connect+0x5d2/0x690 net/socket.c:2066 __do_sys_connect net/socket.c:2076 [inline] __se_sys_connect net/socket.c:2073 [inline] __x64_sys_connect+0x8f/0x100 net/socket.c:2073 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x4b/0x53 RIP: 0033:0x7fbd708b0e5d Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 9f 1b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff8cd33f08 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fbd708b0e5d RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000040 R09: 0000000000000040 R10: 0000000000000040 R11: 0000000000000246 R12: 00007fff8cd34098 R13: 0000000000401280 R14: 0000000000406de8 R15: 00007fbd70ab9000 </TASK> remove_proc_entry: removing non-empty directory 'net/can-bcm', leaking at least '2456'
Severity
No CVSS data available.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < 5c680022c4e28ba18ea500f3e29f0428271afa92 (git)
Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < 33ed4ba73caae39f34ab874ba79138badc2c65dd (git)
Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < aec92dbebdbec7567d9f56d7c9296a572b8fd849 (git)
Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < 10bfacbd5e8d821011d857bee73310457c9c989a (git)
Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < 3b39dc2901aa7a679a5ca981a3de9f8d5658afe8 (git)
Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < 4377b79323df62eb5d310354f19b4d130ff58d50 (git)
Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < abb0a615569ec008e8a93d9f3ab2d5b418ea94d4 (git)
Affected: ffd980f976e7fd666c2e61bf8ab35107efd11828 , < 76fe372ccb81b0c89b6cd2fec26e2f38c958be85 (git)
Create a notification for this product.
Linux Linux Affected: 2.6.25
Unaffected: 0 , < 2.6.25 (semver)
Unaffected: 4.19.322 , ≤ 4.19.* (semver)
Unaffected: 5.4.284 , ≤ 5.4.* (semver)
Unaffected: 5.10.226 , ≤ 5.10.* (semver)
Unaffected: 5.15.167 , ≤ 5.15.* (semver)
Unaffected: 6.1.110 , ≤ 6.1.* (semver)
Unaffected: 6.6.51 , ≤ 6.6.* (semver)
Unaffected: 6.10.10 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-46771",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-29T14:40:41.261064Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-29T14:40:55.797Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T22:18:13.468Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/can/bcm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "5c680022c4e28ba18ea500f3e29f0428271afa92",
              "status": "affected",
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "versionType": "git"
            },
            {
              "lessThan": "33ed4ba73caae39f34ab874ba79138badc2c65dd",
              "status": "affected",
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "versionType": "git"
            },
            {
              "lessThan": "aec92dbebdbec7567d9f56d7c9296a572b8fd849",
              "status": "affected",
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "versionType": "git"
            },
            {
              "lessThan": "10bfacbd5e8d821011d857bee73310457c9c989a",
              "status": "affected",
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "versionType": "git"
            },
            {
              "lessThan": "3b39dc2901aa7a679a5ca981a3de9f8d5658afe8",
              "status": "affected",
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "versionType": "git"
            },
            {
              "lessThan": "4377b79323df62eb5d310354f19b4d130ff58d50",
              "status": "affected",
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "versionType": "git"
            },
            {
              "lessThan": "abb0a615569ec008e8a93d9f3ab2d5b418ea94d4",
              "status": "affected",
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "versionType": "git"
            },
            {
              "lessThan": "76fe372ccb81b0c89b6cd2fec26e2f38c958be85",
              "status": "affected",
              "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/can/bcm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.25"
            },
            {
              "lessThan": "2.6.25",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.322",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.284",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.226",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.167",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.110",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.51",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.10.*",
              "status": "unaffected",
              "version": "6.10.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.11",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.322",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.284",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.226",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.167",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.110",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.51",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.10.10",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.11",
                  "versionStartIncluding": "2.6.25",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: bcm: Remove proc entry when dev is unregistered.\n\nsyzkaller reported a warning in bcm_connect() below. [0]\n\nThe repro calls connect() to vxcan1, removes vxcan1, and calls\nconnect() with ifindex == 0.\n\nCalling connect() for a BCM socket allocates a proc entry.\nThen, bcm_sk(sk)-\u003ebound is set to 1 to prevent further connect().\n\nHowever, removing the bound device resets bcm_sk(sk)-\u003ebound to 0\nin bcm_notify().\n\nThe 2nd connect() tries to allocate a proc entry with the same\nname and sets NULL to bcm_sk(sk)-\u003ebcm_proc_read, leaking the\noriginal proc entry.\n\nSince the proc entry is available only for connect()ed sockets,\nlet\u0027s clean up the entry when the bound netdev is unregistered.\n\n[0]:\nproc_dir_entry \u0027can-bcm/2456\u0027 already registered\nWARNING: CPU: 1 PID: 394 at fs/proc/generic.c:376 proc_register+0x645/0x8f0 fs/proc/generic.c:375\nModules linked in:\nCPU: 1 PID: 394 Comm: syz-executor403 Not tainted 6.10.0-rc7-g852e42cc2dd4\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014\nRIP: 0010:proc_register+0x645/0x8f0 fs/proc/generic.c:375\nCode: 00 00 00 00 00 48 85 ed 0f 85 97 02 00 00 4d 85 f6 0f 85 9f 02 00 00 48 c7 c7 9b cb cf 87 48 89 de 4c 89 fa e8 1c 6f eb fe 90 \u003c0f\u003e 0b 90 90 48 c7 c7 98 37 99 89 e8 cb 7e 22 05 bb 00 00 00 10 48\nRSP: 0018:ffa0000000cd7c30 EFLAGS: 00010246\nRAX: 9e129be1950f0200 RBX: ff1100011b51582c RCX: ff1100011857cd80\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002\nRBP: 0000000000000000 R08: ffd400000000000f R09: ff1100013e78cac0\nR10: ffac800000cd7980 R11: ff1100013e12b1f0 R12: 0000000000000000\nR13: 0000000000000000 R14: 0000000000000000 R15: ff1100011a99a2ec\nFS:  00007fbd7086f740(0000) GS:ff1100013fd00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00000000200071c0 CR3: 0000000118556004 CR4: 0000000000771ef0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400\nPKRU: 55555554\nCall Trace:\n \u003cTASK\u003e\n proc_create_net_single+0x144/0x210 fs/proc/proc_net.c:220\n bcm_connect+0x472/0x840 net/can/bcm.c:1673\n __sys_connect_file net/socket.c:2049 [inline]\n __sys_connect+0x5d2/0x690 net/socket.c:2066\n __do_sys_connect net/socket.c:2076 [inline]\n __se_sys_connect net/socket.c:2073 [inline]\n __x64_sys_connect+0x8f/0x100 net/socket.c:2073\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xd9/0x1c0 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\nRIP: 0033:0x7fbd708b0e5d\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 9f 1b 00 f7 d8 64 89 01 48\nRSP: 002b:00007fff8cd33f08 EFLAGS: 00000246 ORIG_RAX: 000000000000002a\nRAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fbd708b0e5d\nRDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000003\nRBP: 0000000000000000 R08: 0000000000000040 R09: 0000000000000040\nR10: 0000000000000040 R11: 0000000000000246 R12: 00007fff8cd34098\nR13: 0000000000401280 R14: 0000000000406de8 R15: 00007fbd70ab9000\n \u003c/TASK\u003e\nremove_proc_entry: removing non-empty directory \u0027net/can-bcm\u0027, leaking at least \u00272456\u0027"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T20:36:09.878Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5c680022c4e28ba18ea500f3e29f0428271afa92"
        },
        {
          "url": "https://git.kernel.org/stable/c/33ed4ba73caae39f34ab874ba79138badc2c65dd"
        },
        {
          "url": "https://git.kernel.org/stable/c/aec92dbebdbec7567d9f56d7c9296a572b8fd849"
        },
        {
          "url": "https://git.kernel.org/stable/c/10bfacbd5e8d821011d857bee73310457c9c989a"
        },
        {
          "url": "https://git.kernel.org/stable/c/3b39dc2901aa7a679a5ca981a3de9f8d5658afe8"
        },
        {
          "url": "https://git.kernel.org/stable/c/4377b79323df62eb5d310354f19b4d130ff58d50"
        },
        {
          "url": "https://git.kernel.org/stable/c/abb0a615569ec008e8a93d9f3ab2d5b418ea94d4"
        },
        {
          "url": "https://git.kernel.org/stable/c/76fe372ccb81b0c89b6cd2fec26e2f38c958be85"
        }
      ],
      "title": "can: bcm: Remove proc entry when dev is unregistered.",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-46771",
    "datePublished": "2024-09-18T07:12:29.363Z",
    "dateReserved": "2024-09-11T15:12:18.274Z",
    "dateUpdated": "2026-05-11T20:36:09.878Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2024-46771",
      "date": "2026-06-14",
      "epss": "8e-05",
      "percentile": "0.00725"
    },
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"2.6.25\", \"versionEndExcluding\": \"4.19.322\", \"matchCriteriaId\": \"FDD41833-5EF3-4E8B-BD2B-83D6DF670AAA\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"4.20\", \"versionEndExcluding\": \"5.4.284\", \"matchCriteriaId\": \"6265A402-9C3C-438F-BFC5-4194B2568B85\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.5\", \"versionEndExcluding\": \"5.10.226\", \"matchCriteriaId\": \"864FC17C-501A-4823-A643-6F35D65D8A97\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.11\", \"versionEndExcluding\": \"5.15.167\", \"matchCriteriaId\": \"043405A4-25FE-45D4-A7BB-2A0C3B7D17C1\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"5.16\", \"versionEndExcluding\": \"6.1.110\", \"matchCriteriaId\": \"6B1A95FC-7E7E-428B-BB59-F76640C652AE\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.2\", \"versionEndExcluding\": \"6.6.51\", \"matchCriteriaId\": \"E4529134-BAC4-4776-840B-304009E181A0\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"versionStartIncluding\": \"6.7\", \"versionEndExcluding\": \"6.10.10\", \"matchCriteriaId\": \"ACDEE48C-137A-4731-90D0-A675865E1BED\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*\", \"matchCriteriaId\": \"8B3CE743-2126-47A3-8B7C-822B502CF119\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*\", \"matchCriteriaId\": \"4DEB27E7-30AA-45CC-8934-B89263EF3551\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*\", \"matchCriteriaId\": \"E0005AEF-856E-47EB-BFE4-90C46899394D\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*\", \"matchCriteriaId\": \"39889A68-6D34-47A6-82FC-CD0BF23D6754\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*\", \"matchCriteriaId\": \"B8383ABF-1457-401F-9B61-EE50F4C61F4F\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:*\", \"matchCriteriaId\": \"B77A9280-37E6-49AD-B559-5B23A3B1DC3D\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: bcm: Remove proc entry when dev is unregistered.\\n\\nsyzkaller reported a warning in bcm_connect() below. [0]\\n\\nThe repro calls connect() to vxcan1, removes vxcan1, and calls\\nconnect() with ifindex == 0.\\n\\nCalling connect() for a BCM socket allocates a proc entry.\\nThen, bcm_sk(sk)-\u003ebound is set to 1 to prevent further connect().\\n\\nHowever, removing the bound device resets bcm_sk(sk)-\u003ebound to 0\\nin bcm_notify().\\n\\nThe 2nd connect() tries to allocate a proc entry with the same\\nname and sets NULL to bcm_sk(sk)-\u003ebcm_proc_read, leaking the\\noriginal proc entry.\\n\\nSince the proc entry is available only for connect()ed sockets,\\nlet\u0027s clean up the entry when the bound netdev is unregistered.\\n\\n[0]:\\nproc_dir_entry \u0027can-bcm/2456\u0027 already registered\\nWARNING: CPU: 1 PID: 394 at fs/proc/generic.c:376 proc_register+0x645/0x8f0 fs/proc/generic.c:375\\nModules linked in:\\nCPU: 1 PID: 394 Comm: syz-executor403 Not tainted 6.10.0-rc7-g852e42cc2dd4\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014\\nRIP: 0010:proc_register+0x645/0x8f0 fs/proc/generic.c:375\\nCode: 00 00 00 00 00 48 85 ed 0f 85 97 02 00 00 4d 85 f6 0f 85 9f 02 00 00 48 c7 c7 9b cb cf 87 48 89 de 4c 89 fa e8 1c 6f eb fe 90 \u003c0f\u003e 0b 90 90 48 c7 c7 98 37 99 89 e8 cb 7e 22 05 bb 00 00 00 10 48\\nRSP: 0018:ffa0000000cd7c30 EFLAGS: 00010246\\nRAX: 9e129be1950f0200 RBX: ff1100011b51582c RCX: ff1100011857cd80\\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002\\nRBP: 0000000000000000 R08: ffd400000000000f R09: ff1100013e78cac0\\nR10: ffac800000cd7980 R11: ff1100013e12b1f0 R12: 0000000000000000\\nR13: 0000000000000000 R14: 0000000000000000 R15: ff1100011a99a2ec\\nFS:  00007fbd7086f740(0000) GS:ff1100013fd00000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 00000000200071c0 CR3: 0000000118556004 CR4: 0000000000771ef0\\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\nDR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400\\nPKRU: 55555554\\nCall Trace:\\n \u003cTASK\u003e\\n proc_create_net_single+0x144/0x210 fs/proc/proc_net.c:220\\n bcm_connect+0x472/0x840 net/can/bcm.c:1673\\n __sys_connect_file net/socket.c:2049 [inline]\\n __sys_connect+0x5d2/0x690 net/socket.c:2066\\n __do_sys_connect net/socket.c:2076 [inline]\\n __se_sys_connect net/socket.c:2073 [inline]\\n __x64_sys_connect+0x8f/0x100 net/socket.c:2073\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xd9/0x1c0 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\\nRIP: 0033:0x7fbd708b0e5d\\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 9f 1b 00 f7 d8 64 89 01 48\\nRSP: 002b:00007fff8cd33f08 EFLAGS: 00000246 ORIG_RAX: 000000000000002a\\nRAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fbd708b0e5d\\nRDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000003\\nRBP: 0000000000000000 R08: 0000000000000040 R09: 0000000000000040\\nR10: 0000000000000040 R11: 0000000000000246 R12: 00007fff8cd34098\\nR13: 0000000000401280 R14: 0000000000406de8 R15: 00007fbd70ab9000\\n \u003c/TASK\u003e\\nremove_proc_entry: removing non-empty directory \u0027net/can-bcm\u0027, leaking at least \u00272456\u0027\"}, {\"lang\": \"es\", \"value\": \"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: bcm: Eliminar entrada proc cuando dev no est\\u00e1 registrado. syzkaller inform\\u00f3 una advertencia en bcm_connect() a continuaci\\u00f3n. [0] La repro llama a connect() a vxcan1, elimina vxcan1 y llama a connect() con ifindex == 0. Llamar a connect() para un socket BCM asigna una entrada proc. Luego, bcm_sk(sk)-\u0026gt;bound se establece en 1 para evitar m\\u00e1s connect(). Sin embargo, eliminar el dispositivo vinculado restablece bcm_sk(sk)-\u0026gt;bound a 0 en bcm_notify(). El segundo connect() intenta asignar una entrada proc con el mismo nombre y establece NULL en bcm_sk(sk)-\u0026gt;bcm_proc_read, filtrando la entrada proc original. Dado que la entrada proc solo est\\u00e1 disponible para sockets conectados, limpiemos la entrada cuando el netdev vinculado no est\\u00e9 registrado. [0]: proc_dir_entry \u0027can-bcm/2456\u0027 ya est\\u00e1 registrado ADVERTENCIA: CPU: 1 PID: 394 en fs/proc/generic.c:376 proc_register+0x645/0x8f0 fs/proc/generic.c:375 M\\u00f3dulos vinculados en: CPU: 1 PID: 394 Comm: syz-executor403 No contaminado 6.10.0-rc7-g852e42cc2dd4 Nombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 RIP: 0010:proc_register+0x645/0x8f0 fs/proc/generic.c:375 C\\u00f3digo: 00 00 00 00 00 48 85 ed 0f 85 97 02 00 00 4d 85 f6 0f 85 9f 02 00 00 48 c7 c7 9b cb cf 87 48 89 de 4c 89 fa e8 1c 6f eb fe 90 \u0026lt;0f\u0026gt; 0b 90 90 48 c7 c7 98 37 99 89 e8 cb 7e 22 05 bb 00 00 00 10 48 RSP: 0018:ffa0000000cd7c30 EFLAGS: 00010246 RAX: 9e129be1950f0200 RBX: ff1100011b51582c RCX: ff1100011857cd80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: 0000000000000000 R08: ffd400000000000f R09: ff1100013e78cac0 R10: ffac800000cd7980 R11: ff1100013e12b1f0 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ff1100011a99a2ec FS: 00007fbd7086f740(0000) GS:ff1100013fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200071c0 CR3: 0000000118556004 CR4: 0000000000771ef0 DR0: 0000000000000000 DR1: 00000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400 PKRU: 55555554 Seguimiento de llamadas:  proc_create_net_single+0x144/0x210 fs/proc/proc_net.c:220 bcm_connect+0x472/0x840 net/can/bcm.c:1673 __sys_connect_file net/socket.c:2049 [en l\\u00ednea] __sys_connect+0x5d2/0x690 net/socket.c:2066 __do_sys_connect net/socket.c:2076 [en l\\u00ednea] __se_sys_connect net/socket.c:2073 [en l\\u00ednea] __x64_sys_connect+0x8f/0x100 net/socket.c:2073 do_syscall_x64 arch/x86/entry/common.c:52 [en l\\u00ednea] do_syscall_64+0xd9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x4b/0x53 RIP: 0033:0x7fbd708b0e5d C\\u00f3digo: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u0026lt;48\u0026gt; 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 9f 1b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff8cd33f08 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fbd708b0e5d RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000040 R09: 0000000000000040 R10: 0000000000000040 R11: 0000000000000246 R12: 00007fff8cd34098 R13: 0000000000401280 R14: 0000000000406de8 R15: 00007fbd70ab9000  remove_proc_entry: elimina el directorio no vac\\u00edo \u0027net/can-bcm\u0027, filtrando al menos \u00272456\u0027\"}]",
      "id": "CVE-2024-46771",
      "lastModified": "2024-11-20T18:20:03.130",
      "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}]}",
      "published": "2024-09-18T08:15:05.010",
      "references": "[{\"url\": \"https://git.kernel.org/stable/c/10bfacbd5e8d821011d857bee73310457c9c989a\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/33ed4ba73caae39f34ab874ba79138badc2c65dd\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/3b39dc2901aa7a679a5ca981a3de9f8d5658afe8\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/4377b79323df62eb5d310354f19b4d130ff58d50\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/5c680022c4e28ba18ea500f3e29f0428271afa92\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/76fe372ccb81b0c89b6cd2fec26e2f38c958be85\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/abb0a615569ec008e8a93d9f3ab2d5b418ea94d4\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}, {\"url\": \"https://git.kernel.org/stable/c/aec92dbebdbec7567d9f56d7c9296a572b8fd849\", \"source\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"tags\": [\"Patch\"]}]",
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Analyzed",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"NVD-CWE-noinfo\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-46771\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-09-18T08:15:05.010\",\"lastModified\":\"2025-11-03T23:15:59.987\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: bcm: Remove proc entry when dev is unregistered.\\n\\nsyzkaller reported a warning in bcm_connect() below. [0]\\n\\nThe repro calls connect() to vxcan1, removes vxcan1, and calls\\nconnect() with ifindex == 0.\\n\\nCalling connect() for a BCM socket allocates a proc entry.\\nThen, bcm_sk(sk)-\u003ebound is set to 1 to prevent further connect().\\n\\nHowever, removing the bound device resets bcm_sk(sk)-\u003ebound to 0\\nin bcm_notify().\\n\\nThe 2nd connect() tries to allocate a proc entry with the same\\nname and sets NULL to bcm_sk(sk)-\u003ebcm_proc_read, leaking the\\noriginal proc entry.\\n\\nSince the proc entry is available only for connect()ed sockets,\\nlet\u0027s clean up the entry when the bound netdev is unregistered.\\n\\n[0]:\\nproc_dir_entry \u0027can-bcm/2456\u0027 already registered\\nWARNING: CPU: 1 PID: 394 at fs/proc/generic.c:376 proc_register+0x645/0x8f0 fs/proc/generic.c:375\\nModules linked in:\\nCPU: 1 PID: 394 Comm: syz-executor403 Not tainted 6.10.0-rc7-g852e42cc2dd4\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014\\nRIP: 0010:proc_register+0x645/0x8f0 fs/proc/generic.c:375\\nCode: 00 00 00 00 00 48 85 ed 0f 85 97 02 00 00 4d 85 f6 0f 85 9f 02 00 00 48 c7 c7 9b cb cf 87 48 89 de 4c 89 fa e8 1c 6f eb fe 90 \u003c0f\u003e 0b 90 90 48 c7 c7 98 37 99 89 e8 cb 7e 22 05 bb 00 00 00 10 48\\nRSP: 0018:ffa0000000cd7c30 EFLAGS: 00010246\\nRAX: 9e129be1950f0200 RBX: ff1100011b51582c RCX: ff1100011857cd80\\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002\\nRBP: 0000000000000000 R08: ffd400000000000f R09: ff1100013e78cac0\\nR10: ffac800000cd7980 R11: ff1100013e12b1f0 R12: 0000000000000000\\nR13: 0000000000000000 R14: 0000000000000000 R15: ff1100011a99a2ec\\nFS:  00007fbd7086f740(0000) GS:ff1100013fd00000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 00000000200071c0 CR3: 0000000118556004 CR4: 0000000000771ef0\\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\nDR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400\\nPKRU: 55555554\\nCall Trace:\\n \u003cTASK\u003e\\n proc_create_net_single+0x144/0x210 fs/proc/proc_net.c:220\\n bcm_connect+0x472/0x840 net/can/bcm.c:1673\\n __sys_connect_file net/socket.c:2049 [inline]\\n __sys_connect+0x5d2/0x690 net/socket.c:2066\\n __do_sys_connect net/socket.c:2076 [inline]\\n __se_sys_connect net/socket.c:2073 [inline]\\n __x64_sys_connect+0x8f/0x100 net/socket.c:2073\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xd9/0x1c0 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\\nRIP: 0033:0x7fbd708b0e5d\\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 9f 1b 00 f7 d8 64 89 01 48\\nRSP: 002b:00007fff8cd33f08 EFLAGS: 00000246 ORIG_RAX: 000000000000002a\\nRAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fbd708b0e5d\\nRDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000003\\nRBP: 0000000000000000 R08: 0000000000000040 R09: 0000000000000040\\nR10: 0000000000000040 R11: 0000000000000246 R12: 00007fff8cd34098\\nR13: 0000000000401280 R14: 0000000000406de8 R15: 00007fbd70ab9000\\n \u003c/TASK\u003e\\nremove_proc_entry: removing non-empty directory \u0027net/can-bcm\u0027, leaking at least \u00272456\u0027\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: bcm: Eliminar entrada proc cuando dev no est\u00e1 registrado. syzkaller inform\u00f3 una advertencia en bcm_connect() a continuaci\u00f3n. [0] La repro llama a connect() a vxcan1, elimina vxcan1 y llama a connect() con ifindex == 0. Llamar a connect() para un socket BCM asigna una entrada proc. Luego, bcm_sk(sk)-\u0026gt;bound se establece en 1 para evitar m\u00e1s connect(). Sin embargo, eliminar el dispositivo vinculado restablece bcm_sk(sk)-\u0026gt;bound a 0 en bcm_notify(). El segundo connect() intenta asignar una entrada proc con el mismo nombre y establece NULL en bcm_sk(sk)-\u0026gt;bcm_proc_read, filtrando la entrada proc original. Dado que la entrada proc solo est\u00e1 disponible para sockets conectados, limpiemos la entrada cuando el netdev vinculado no est\u00e9 registrado. [0]: proc_dir_entry \u0027can-bcm/2456\u0027 ya est\u00e1 registrado ADVERTENCIA: CPU: 1 PID: 394 en fs/proc/generic.c:376 proc_register+0x645/0x8f0 fs/proc/generic.c:375 M\u00f3dulos vinculados en: CPU: 1 PID: 394 Comm: syz-executor403 No contaminado 6.10.0-rc7-g852e42cc2dd4 Nombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 RIP: 0010:proc_register+0x645/0x8f0 fs/proc/generic.c:375 C\u00f3digo: 00 00 00 00 00 48 85 ed 0f 85 97 02 00 00 4d 85 f6 0f 85 9f 02 00 00 48 c7 c7 9b cb cf 87 48 89 de 4c 89 fa e8 1c 6f eb fe 90 \u0026lt;0f\u0026gt; 0b 90 90 48 c7 c7 98 37 99 89 e8 cb 7e 22 05 bb 00 00 00 10 48 RSP: 0018:ffa0000000cd7c30 EFLAGS: 00010246 RAX: 9e129be1950f0200 RBX: ff1100011b51582c RCX: ff1100011857cd80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 RBP: 0000000000000000 R08: ffd400000000000f R09: ff1100013e78cac0 R10: ffac800000cd7980 R11: ff1100013e12b1f0 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ff1100011a99a2ec FS: 00007fbd7086f740(0000) GS:ff1100013fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200071c0 CR3: 0000000118556004 CR4: 0000000000771ef0 DR0: 0000000000000000 DR1: 00000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400 PKRU: 55555554 Seguimiento de llamadas:  proc_create_net_single+0x144/0x210 fs/proc/proc_net.c:220 bcm_connect+0x472/0x840 net/can/bcm.c:1673 __sys_connect_file net/socket.c:2049 [en l\u00ednea] __sys_connect+0x5d2/0x690 net/socket.c:2066 __do_sys_connect net/socket.c:2076 [en l\u00ednea] __se_sys_connect net/socket.c:2073 [en l\u00ednea] __x64_sys_connect+0x8f/0x100 net/socket.c:2073 do_syscall_x64 arch/x86/entry/common.c:52 [en l\u00ednea] do_syscall_64+0xd9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x4b/0x53 RIP: 0033:0x7fbd708b0e5d C\u00f3digo: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u0026lt;48\u0026gt; 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 9f 1b 00 f7 d8 64 89 01 48 RSP: 002b:00007fff8cd33f08 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fbd708b0e5d RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000040 R09: 0000000000000040 R10: 0000000000000040 R11: 0000000000000246 R12: 00007fff8cd34098 R13: 0000000000401280 R14: 0000000000406de8 R15: 00007fbd70ab9000  remove_proc_entry: elimina el directorio no vac\u00edo \u0027net/can-bcm\u0027, filtrando al menos \u00272456\u0027\"}],\"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\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"2.6.25\",\"versionEndExcluding\":\"4.19.322\",\"matchCriteriaId\":\"FDD41833-5EF3-4E8B-BD2B-83D6DF670AAA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.284\",\"matchCriteriaId\":\"6265A402-9C3C-438F-BFC5-4194B2568B85\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.226\",\"matchCriteriaId\":\"864FC17C-501A-4823-A643-6F35D65D8A97\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.167\",\"matchCriteriaId\":\"043405A4-25FE-45D4-A7BB-2A0C3B7D17C1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.110\",\"matchCriteriaId\":\"6B1A95FC-7E7E-428B-BB59-F76640C652AE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.51\",\"matchCriteriaId\":\"E4529134-BAC4-4776-840B-304009E181A0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.10.10\",\"matchCriteriaId\":\"ACDEE48C-137A-4731-90D0-A675865E1BED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"8B3CE743-2126-47A3-8B7C-822B502CF119\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"4DEB27E7-30AA-45CC-8934-B89263EF3551\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0005AEF-856E-47EB-BFE4-90C46899394D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"39889A68-6D34-47A6-82FC-CD0BF23D6754\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"B8383ABF-1457-401F-9B61-EE50F4C61F4F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"B77A9280-37E6-49AD-B559-5B23A3B1DC3D\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/10bfacbd5e8d821011d857bee73310457c9c989a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/33ed4ba73caae39f34ab874ba79138badc2c65dd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/3b39dc2901aa7a679a5ca981a3de9f8d5658afe8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/4377b79323df62eb5d310354f19b4d130ff58d50\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5c680022c4e28ba18ea500f3e29f0428271afa92\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/76fe372ccb81b0c89b6cd2fec26e2f38c958be85\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/abb0a615569ec008e8a93d9f3ab2d5b418ea94d4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/aec92dbebdbec7567d9f56d7c9296a572b8fd849\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html\"}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html\"}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2025-11-03T22:18:13.468Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-46771\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-29T14:40:41.261064Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-29T14:40:45.697Z\"}}], \"cna\": {\"title\": \"can: bcm: Remove proc entry when dev is unregistered.\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"5c680022c4e28ba18ea500f3e29f0428271afa92\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"33ed4ba73caae39f34ab874ba79138badc2c65dd\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"aec92dbebdbec7567d9f56d7c9296a572b8fd849\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"10bfacbd5e8d821011d857bee73310457c9c989a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"3b39dc2901aa7a679a5ca981a3de9f8d5658afe8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"4377b79323df62eb5d310354f19b4d130ff58d50\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"abb0a615569ec008e8a93d9f3ab2d5b418ea94d4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"ffd980f976e7fd666c2e61bf8ab35107efd11828\", \"lessThan\": \"76fe372ccb81b0c89b6cd2fec26e2f38c958be85\", \"versionType\": \"git\"}], \"programFiles\": [\"net/can/bcm.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2.6.25\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"2.6.25\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.322\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.284\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.226\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.167\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.110\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.51\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.10.*\"}, {\"status\": \"unaffected\", \"version\": \"6.11\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/can/bcm.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/5c680022c4e28ba18ea500f3e29f0428271afa92\"}, {\"url\": \"https://git.kernel.org/stable/c/33ed4ba73caae39f34ab874ba79138badc2c65dd\"}, {\"url\": \"https://git.kernel.org/stable/c/aec92dbebdbec7567d9f56d7c9296a572b8fd849\"}, {\"url\": \"https://git.kernel.org/stable/c/10bfacbd5e8d821011d857bee73310457c9c989a\"}, {\"url\": \"https://git.kernel.org/stable/c/3b39dc2901aa7a679a5ca981a3de9f8d5658afe8\"}, {\"url\": \"https://git.kernel.org/stable/c/4377b79323df62eb5d310354f19b4d130ff58d50\"}, {\"url\": \"https://git.kernel.org/stable/c/abb0a615569ec008e8a93d9f3ab2d5b418ea94d4\"}, {\"url\": \"https://git.kernel.org/stable/c/76fe372ccb81b0c89b6cd2fec26e2f38c958be85\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: bcm: Remove proc entry when dev is unregistered.\\n\\nsyzkaller reported a warning in bcm_connect() below. [0]\\n\\nThe repro calls connect() to vxcan1, removes vxcan1, and calls\\nconnect() with ifindex == 0.\\n\\nCalling connect() for a BCM socket allocates a proc entry.\\nThen, bcm_sk(sk)-\u003ebound is set to 1 to prevent further connect().\\n\\nHowever, removing the bound device resets bcm_sk(sk)-\u003ebound to 0\\nin bcm_notify().\\n\\nThe 2nd connect() tries to allocate a proc entry with the same\\nname and sets NULL to bcm_sk(sk)-\u003ebcm_proc_read, leaking the\\noriginal proc entry.\\n\\nSince the proc entry is available only for connect()ed sockets,\\nlet\u0027s clean up the entry when the bound netdev is unregistered.\\n\\n[0]:\\nproc_dir_entry \u0027can-bcm/2456\u0027 already registered\\nWARNING: CPU: 1 PID: 394 at fs/proc/generic.c:376 proc_register+0x645/0x8f0 fs/proc/generic.c:375\\nModules linked in:\\nCPU: 1 PID: 394 Comm: syz-executor403 Not tainted 6.10.0-rc7-g852e42cc2dd4\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014\\nRIP: 0010:proc_register+0x645/0x8f0 fs/proc/generic.c:375\\nCode: 00 00 00 00 00 48 85 ed 0f 85 97 02 00 00 4d 85 f6 0f 85 9f 02 00 00 48 c7 c7 9b cb cf 87 48 89 de 4c 89 fa e8 1c 6f eb fe 90 \u003c0f\u003e 0b 90 90 48 c7 c7 98 37 99 89 e8 cb 7e 22 05 bb 00 00 00 10 48\\nRSP: 0018:ffa0000000cd7c30 EFLAGS: 00010246\\nRAX: 9e129be1950f0200 RBX: ff1100011b51582c RCX: ff1100011857cd80\\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002\\nRBP: 0000000000000000 R08: ffd400000000000f R09: ff1100013e78cac0\\nR10: ffac800000cd7980 R11: ff1100013e12b1f0 R12: 0000000000000000\\nR13: 0000000000000000 R14: 0000000000000000 R15: ff1100011a99a2ec\\nFS:  00007fbd7086f740(0000) GS:ff1100013fd00000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 00000000200071c0 CR3: 0000000118556004 CR4: 0000000000771ef0\\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\nDR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400\\nPKRU: 55555554\\nCall Trace:\\n \u003cTASK\u003e\\n proc_create_net_single+0x144/0x210 fs/proc/proc_net.c:220\\n bcm_connect+0x472/0x840 net/can/bcm.c:1673\\n __sys_connect_file net/socket.c:2049 [inline]\\n __sys_connect+0x5d2/0x690 net/socket.c:2066\\n __do_sys_connect net/socket.c:2076 [inline]\\n __se_sys_connect net/socket.c:2073 [inline]\\n __x64_sys_connect+0x8f/0x100 net/socket.c:2073\\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\\n do_syscall_64+0xd9/0x1c0 arch/x86/entry/common.c:83\\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\\nRIP: 0033:0x7fbd708b0e5d\\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d 73 9f 1b 00 f7 d8 64 89 01 48\\nRSP: 002b:00007fff8cd33f08 EFLAGS: 00000246 ORIG_RAX: 000000000000002a\\nRAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fbd708b0e5d\\nRDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000003\\nRBP: 0000000000000000 R08: 0000000000000040 R09: 0000000000000040\\nR10: 0000000000000040 R11: 0000000000000246 R12: 00007fff8cd34098\\nR13: 0000000000401280 R14: 0000000000406de8 R15: 00007fbd70ab9000\\n \u003c/TASK\u003e\\nremove_proc_entry: removing non-empty directory \u0027net/can-bcm\u0027, leaking at least \u00272456\u0027\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.322\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.284\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.226\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.167\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.110\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.51\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10.10\", \"versionStartIncluding\": \"2.6.25\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11\", \"versionStartIncluding\": \"2.6.25\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T20:36:09.878Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-46771\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T20:36:09.878Z\", \"dateReserved\": \"2024-09-11T15:12:18.274Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-09-18T07:12:29.363Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.