CVE-2025-38462 (GCVE-0-2025-38462)
Vulnerability from cvelistv5
Published
2025-07-25 15:27
Modified
2025-07-28 04:23
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: vsock: Fix transport_{g2h,h2g} TOCTOU vsock_find_cid() and vsock_dev_do_ioctl() may race with module unload. transport_{g2h,h2g} may become NULL after the NULL check. Introduce vsock_transport_local_cid() to protect from a potential null-ptr-deref. KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f] RIP: 0010:vsock_find_cid+0x47/0x90 Call Trace: __vsock_bind+0x4b2/0x720 vsock_bind+0x90/0xe0 __sys_bind+0x14d/0x1e0 __x64_sys_bind+0x6e/0xc0 do_syscall_64+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x4b/0x53 KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f] RIP: 0010:vsock_dev_do_ioctl.isra.0+0x58/0xf0 Call Trace: __x64_sys_ioctl+0x12d/0x190 do_syscall_64+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x4b/0x53
References
Impacted products
Vendor Product Version
Linux Linux Version: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a
Version: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a
Version: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a
Version: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a
Version: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a
Version: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a
Version: c0cfa2d8a788fcf45df5bf4070ab2474c88d543a
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/vmw_vsock/af_vsock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c5496ee685c48ed1cc183cd4263602579bb4a615",
              "status": "affected",
              "version": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a",
              "versionType": "git"
            },
            {
              "lessThan": "80d7dc15805a93d520a249ac6d13d4f4df161c1b",
              "status": "affected",
              "version": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a",
              "versionType": "git"
            },
            {
              "lessThan": "5752d8dbb3dfd7f1a9faf0f65377e60826ea9a17",
              "status": "affected",
              "version": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a",
              "versionType": "git"
            },
            {
              "lessThan": "401239811fa728fcdd53e360a91f157ffd23e1f4",
              "status": "affected",
              "version": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a",
              "versionType": "git"
            },
            {
              "lessThan": "3734d78210cceb2ee5615719a62a5c55ed381ff8",
              "status": "affected",
              "version": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a",
              "versionType": "git"
            },
            {
              "lessThan": "6a1bcab67bea797d83aa9dd948a0ac6ed52d121d",
              "status": "affected",
              "version": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a",
              "versionType": "git"
            },
            {
              "lessThan": "209fd720838aaf1420416494c5505096478156b4",
              "status": "affected",
              "version": "c0cfa2d8a788fcf45df5bf4070ab2474c88d543a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/vmw_vsock/af_vsock.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.5"
            },
            {
              "lessThan": "5.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.240",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.146",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.99",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.7",
              "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": "5.10.240",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.189",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.146",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.99",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.39",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.7",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock: Fix transport_{g2h,h2g} TOCTOU\n\nvsock_find_cid() and vsock_dev_do_ioctl() may race with module unload.\ntransport_{g2h,h2g} may become NULL after the NULL check.\n\nIntroduce vsock_transport_local_cid() to protect from a potential\nnull-ptr-deref.\n\nKASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f]\nRIP: 0010:vsock_find_cid+0x47/0x90\nCall Trace:\n __vsock_bind+0x4b2/0x720\n vsock_bind+0x90/0xe0\n __sys_bind+0x14d/0x1e0\n __x64_sys_bind+0x6e/0xc0\n do_syscall_64+0x92/0x1c0\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\n\nKASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f]\nRIP: 0010:vsock_dev_do_ioctl.isra.0+0x58/0xf0\nCall Trace:\n __x64_sys_ioctl+0x12d/0x190\n do_syscall_64+0x92/0x1c0\n entry_SYSCALL_64_after_hwframe+0x4b/0x53"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:23:09.298Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c5496ee685c48ed1cc183cd4263602579bb4a615"
        },
        {
          "url": "https://git.kernel.org/stable/c/80d7dc15805a93d520a249ac6d13d4f4df161c1b"
        },
        {
          "url": "https://git.kernel.org/stable/c/5752d8dbb3dfd7f1a9faf0f65377e60826ea9a17"
        },
        {
          "url": "https://git.kernel.org/stable/c/401239811fa728fcdd53e360a91f157ffd23e1f4"
        },
        {
          "url": "https://git.kernel.org/stable/c/3734d78210cceb2ee5615719a62a5c55ed381ff8"
        },
        {
          "url": "https://git.kernel.org/stable/c/6a1bcab67bea797d83aa9dd948a0ac6ed52d121d"
        },
        {
          "url": "https://git.kernel.org/stable/c/209fd720838aaf1420416494c5505096478156b4"
        }
      ],
      "title": "vsock: Fix transport_{g2h,h2g} TOCTOU",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38462",
    "datePublished": "2025-07-25T15:27:45.168Z",
    "dateReserved": "2025-04-16T04:51:24.020Z",
    "dateUpdated": "2025-07-28T04:23:09.298Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38462\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-25T16:15:32.117\",\"lastModified\":\"2025-07-29T14:14:55.157\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nvsock: Fix transport_{g2h,h2g} TOCTOU\\n\\nvsock_find_cid() and vsock_dev_do_ioctl() may race with module unload.\\ntransport_{g2h,h2g} may become NULL after the NULL check.\\n\\nIntroduce vsock_transport_local_cid() to protect from a potential\\nnull-ptr-deref.\\n\\nKASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f]\\nRIP: 0010:vsock_find_cid+0x47/0x90\\nCall Trace:\\n __vsock_bind+0x4b2/0x720\\n vsock_bind+0x90/0xe0\\n __sys_bind+0x14d/0x1e0\\n __x64_sys_bind+0x6e/0xc0\\n do_syscall_64+0x92/0x1c0\\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\\n\\nKASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f]\\nRIP: 0010:vsock_dev_do_ioctl.isra.0+0x58/0xf0\\nCall Trace:\\n __x64_sys_ioctl+0x12d/0x190\\n do_syscall_64+0x92/0x1c0\\n entry_SYSCALL_64_after_hwframe+0x4b/0x53\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: vsock: Se ha corregido el error \\\"TOCTOU\\\" de transport_{g2h,h2g}. vsock_find_cid() y vsock_dev_do_ioctl() podr\u00edan competir con la descarga del m\u00f3dulo. transport_{g2h,h2g} podr\u00eda volverse nulo despu\u00e9s de la comprobaci\u00f3n de valores nulos. Se ha implementado vsock_transport_local_cid() para proteger contra una posible desreferencia de PTR nula. KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f] RIP: 0010:vsock_find_cid+0x47/0x90 Call Trace: __vsock_bind+0x4b2/0x720 vsock_bind+0x90/0xe0 __sys_bind+0x14d/0x1e0 __x64_sys_bind+0x6e/0xc0 do_syscall_64+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x4b/0x53 KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f] RIP: 0010:vsock_dev_do_ioctl.isra.0+0x58/0xf0 Call Trace: __x64_sys_ioctl+0x12d/0x190 do_syscall_64+0x92/0x1c0 entry_SYSCALL_64_after_hwframe+0x4b/0x53\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/209fd720838aaf1420416494c5505096478156b4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3734d78210cceb2ee5615719a62a5c55ed381ff8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/401239811fa728fcdd53e360a91f157ffd23e1f4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5752d8dbb3dfd7f1a9faf0f65377e60826ea9a17\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6a1bcab67bea797d83aa9dd948a0ac6ed52d121d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/80d7dc15805a93d520a249ac6d13d4f4df161c1b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c5496ee685c48ed1cc183cd4263602579bb4a615\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.
  • 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.