CVE-2024-26640
Vulnerability from cvelistv5
Published
2024-03-18 10:19
Modified
2024-11-05 09:13
Severity ?
Summary
tcp: add sanity checks to rx zerocopy
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1b8adcc0e2c584fec778add7777fe28e20781e60
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/577e4432f3ac810049cb7e6b71f4d96ec7c6e894
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/718f446e60316bf606946f7f42367d691d21541e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b383d4ea272fe5795877506dcce5aad1f6330e5e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d15cc0f66884ef2bed28c7ccbb11c102aa3a0760
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f48bf9a83b1666d934247cb58a9887d7b3127b6f
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website

To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-26640",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-03-18T14:20:07.780920Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-04T17:48:57.803Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:07:19.826Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/f48bf9a83b1666d934247cb58a9887d7b3127b6f"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/718f446e60316bf606946f7f42367d691d21541e"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/b383d4ea272fe5795877506dcce5aad1f6330e5e"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/d15cc0f66884ef2bed28c7ccbb11c102aa3a0760"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/1b8adcc0e2c584fec778add7777fe28e20781e60"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/577e4432f3ac810049cb7e6b71f4d96ec7c6e894"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/ipv4/tcp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f48bf9a83b16",
              "status": "affected",
              "version": "93ab6cc69162",
              "versionType": "git"
            },
            {
              "lessThan": "718f446e6031",
              "status": "affected",
              "version": "93ab6cc69162",
              "versionType": "git"
            },
            {
              "lessThan": "b383d4ea272f",
              "status": "affected",
              "version": "93ab6cc69162",
              "versionType": "git"
            },
            {
              "lessThan": "d15cc0f66884",
              "status": "affected",
              "version": "93ab6cc69162",
              "versionType": "git"
            },
            {
              "lessThan": "1b8adcc0e2c5",
              "status": "affected",
              "version": "93ab6cc69162",
              "versionType": "git"
            },
            {
              "lessThan": "577e4432f3ac",
              "status": "affected",
              "version": "93ab6cc69162",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/ipv4/tcp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.18"
            },
            {
              "lessThan": "4.18",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.210",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.149",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.77",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.16",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: add sanity checks to rx zerocopy\n\nTCP rx zerocopy intent is to map pages initially allocated\nfrom NIC drivers, not pages owned by a fs.\n\nThis patch adds to can_map_frag() these additional checks:\n\n- Page must not be a compound one.\n- page-\u003emapping must be NULL.\n\nThis fixes the panic reported by ZhangPeng.\n\nsyzbot was able to loopback packets built with sendfile(),\nmapping pages owned by an ext4 file to TCP rx zerocopy.\n\nr3 = socket$inet_tcp(0x2, 0x1, 0x0)\nmmap(\u0026(0x7f0000ff9000/0x4000)=nil, 0x4000, 0x0, 0x12, r3, 0x0)\nr4 = socket$inet_tcp(0x2, 0x1, 0x0)\nbind$inet(r4, \u0026(0x7f0000000000)={0x2, 0x4e24, @multicast1}, 0x10)\nconnect$inet(r4, \u0026(0x7f00000006c0)={0x2, 0x4e24, @empty}, 0x10)\nr5 = openat$dir(0xffffffffffffff9c, \u0026(0x7f00000000c0)=\u0027./file0\\x00\u0027,\n    0x181e42, 0x0)\nfallocate(r5, 0x0, 0x0, 0x85b8)\nsendfile(r4, r5, 0x0, 0x8ba0)\ngetsockopt$inet_tcp_TCP_ZEROCOPY_RECEIVE(r4, 0x6, 0x23,\n    \u0026(0x7f00000001c0)={\u0026(0x7f0000ffb000/0x3000)=nil, 0x3000, 0x0, 0x0, 0x0,\n    0x0, 0x0, 0x0, 0x0}, \u0026(0x7f0000000440)=0x40)\nr6 = openat$dir(0xffffffffffffff9c, \u0026(0x7f00000000c0)=\u0027./file0\\x00\u0027,\n    0x181e42, 0x0)"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-05T09:13:02.714Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f48bf9a83b1666d934247cb58a9887d7b3127b6f"
        },
        {
          "url": "https://git.kernel.org/stable/c/718f446e60316bf606946f7f42367d691d21541e"
        },
        {
          "url": "https://git.kernel.org/stable/c/b383d4ea272fe5795877506dcce5aad1f6330e5e"
        },
        {
          "url": "https://git.kernel.org/stable/c/d15cc0f66884ef2bed28c7ccbb11c102aa3a0760"
        },
        {
          "url": "https://git.kernel.org/stable/c/1b8adcc0e2c584fec778add7777fe28e20781e60"
        },
        {
          "url": "https://git.kernel.org/stable/c/577e4432f3ac810049cb7e6b71f4d96ec7c6e894"
        }
      ],
      "title": "tcp: add sanity checks to rx zerocopy",
      "x_generator": {
        "engine": "bippy-9e1c9544281a"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26640",
    "datePublished": "2024-03-18T10:19:07.025Z",
    "dateReserved": "2024-02-19T14:20:24.137Z",
    "dateUpdated": "2024-11-05T09:13:02.714Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-26640\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-03-18T11:15:11.043\",\"lastModified\":\"2024-11-05T10:15:36.240\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntcp: add sanity checks to rx zerocopy\\n\\nTCP rx zerocopy intent is to map pages initially allocated\\nfrom NIC drivers, not pages owned by a fs.\\n\\nThis patch adds to can_map_frag() these additional checks:\\n\\n- Page must not be a compound one.\\n- page-\u003emapping must be NULL.\\n\\nThis fixes the panic reported by ZhangPeng.\\n\\nsyzbot was able to loopback packets built with sendfile(),\\nmapping pages owned by an ext4 file to TCP rx zerocopy.\\n\\nr3 = socket$inet_tcp(0x2, 0x1, 0x0)\\nmmap(\u0026(0x7f0000ff9000/0x4000)=nil, 0x4000, 0x0, 0x12, r3, 0x0)\\nr4 = socket$inet_tcp(0x2, 0x1, 0x0)\\nbind$inet(r4, \u0026(0x7f0000000000)={0x2, 0x4e24, @multicast1}, 0x10)\\nconnect$inet(r4, \u0026(0x7f00000006c0)={0x2, 0x4e24, @empty}, 0x10)\\nr5 = openat$dir(0xffffffffffffff9c, \u0026(0x7f00000000c0)=\u0027./file0\\\\x00\u0027,\\n    0x181e42, 0x0)\\nfallocate(r5, 0x0, 0x0, 0x85b8)\\nsendfile(r4, r5, 0x0, 0x8ba0)\\ngetsockopt$inet_tcp_TCP_ZEROCOPY_RECEIVE(r4, 0x6, 0x23,\\n    \u0026(0x7f00000001c0)={\u0026(0x7f0000ffb000/0x3000)=nil, 0x3000, 0x0, 0x0, 0x0,\\n    0x0, 0x0, 0x0, 0x0}, \u0026(0x7f0000000440)=0x40)\\nr6 = openat$dir(0xffffffffffffff9c, \u0026(0x7f00000000c0)=\u0027./file0\\\\x00\u0027,\\n    0x181e42, 0x0)\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: tcp: agregue controles de seguridad a rx zerocopy La intenci\u00f3n de TCP rx zerocopy es mapear p\u00e1ginas inicialmente asignadas desde controladores NIC, no p\u00e1ginas propiedad de un fs. Este parche a\u00f1ade a can_map_frag() estas comprobaciones adicionales: - La p\u00e1gina no debe ser compuesta. - p\u00e1gina-\u0026gt;mapeo debe ser NULL. Esto soluciona el p\u00e1nico informado por ZhangPeng. syzbot pudo realizar un loopback de paquetes creados con sendfile(), asignando p\u00e1ginas propiedad de un archivo ext4 a TCP rx zerocopy. r3 = socket$inet_tcp(0x2, 0x1, 0x0) mmap(\u0026amp;(0x7f0000ff9000/0x4000)=nil, 0x4000, 0x0, 0x12, r3, 0x0) r4 = socket$inet_tcp(0x2, 0x1, 0x0) bind$inet(r4 , \u0026amp;(0x7f0000000000)={0x2, 0x4e24, @multicast1}, 0x10) connect$inet(r4, \u0026amp;(0x7f00000006c0)={0x2, 0x4e24, @empty}, 0x10) r5 = openat$dir(0xffffffffffffff9c, \u0026amp;(0x7f00) 000000c0 )=\u0027./file0\\\\x00\u0027, 0x181e42, 0x0) fallocate(r5, 0x0, 0x0, 0x85b8) sendfile(r4, r5, 0x0, 0x8ba0) getsockopt$inet_tcp_TCP_ZEROCOPY_RECEIVE(r4, 0x6, 0x23, \u0026amp;(0x7f00000) 001c0)={ \u0026amp;(0x7f0000ffb000/0x3000)=nil, 0x3000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, \u0026amp;(0x7f0000000440)=0x40) r6 = openat$dir(0xffffffffffffff9c, \u0026amp;(0x7f000) 00000c0)=\u0027./archivo0 \\\\x00\u0027, 0x181e42, 0x0)\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1b8adcc0e2c584fec778add7777fe28e20781e60\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/577e4432f3ac810049cb7e6b71f4d96ec7c6e894\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/718f446e60316bf606946f7f42367d691d21541e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b383d4ea272fe5795877506dcce5aad1f6330e5e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d15cc0f66884ef2bed28c7ccbb11c102aa3a0760\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f48bf9a83b1666d934247cb58a9887d7b3127b6f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




  • 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.