GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

CVE-2026-31570 (GCVE-0-2026-31570)

Vulnerability from cvelistv5 – Published: 2026-04-24 14:35 – Updated: 2026-08-05 12:23
VLAI
Title
can: gw: fix OOB heap access in cgw_csum_crc8_rel()
Summary
In the Linux kernel, the following vulnerability has been resolved: can: gw: fix OOB heap access in cgw_csum_crc8_rel() cgw_csum_crc8_rel() correctly computes bounds-safe indices via calc_idx(): int from = calc_idx(crc8->from_idx, cf->len); int to = calc_idx(crc8->to_idx, cf->len); int res = calc_idx(crc8->result_idx, cf->len); if (from < 0 || to < 0 || res < 0) return; However, the loop and the result write then use the raw s8 fields directly instead of the computed variables: for (i = crc8->from_idx; ...) /* BUG: raw negative index */ cf->data[crc8->result_idx] = ...; /* BUG: raw negative index */ With from_idx = to_idx = result_idx = -64 on a 64-byte CAN FD frame, calc_idx(-64, 64) = 0 so the guard passes, but the loop iterates with i = -64, reading cf->data[-64], and the write goes to cf->data[-64]. This write might end up to 56 (7.0-rc) or 40 (<= 6.19) bytes before the start of the canfd_frame on the heap. The companion function cgw_csum_xor_rel() uses `from`/`to`/`res` correctly throughout; fix cgw_csum_crc8_rel() to match. Confirmed with KASAN on linux-7.0-rc2: BUG: KASAN: slab-out-of-bounds in cgw_csum_crc8_rel+0x515/0x5b0 Read of size 1 at addr ffff8880076619c8 by task poc_cgw_oob/62 To configure the can-gw crc8 checksums CAP_NET_ADMIN is needed.
Severity
8.8 (High)
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 456a8a646b2563438c16a9b27decf9aa717f1ebb , < e7c99348b0612b2bc02d5ce6ff9873261cc7605f (git)
Affected: 456a8a646b2563438c16a9b27decf9aa717f1ebb , < 999ca48d55a8a46da21519db7e834e5867200379 (git)
Affected: 456a8a646b2563438c16a9b27decf9aa717f1ebb , < a025283d7f7404c739225e457fb99db2368bb544 (git)
Affected: 456a8a646b2563438c16a9b27decf9aa717f1ebb , < 54ecdf76a55e75c1f5085e440f8ab671a3283ef5 (git)
Affected: 456a8a646b2563438c16a9b27decf9aa717f1ebb , < c4e8eaa75fa0b6bcbfa5356d6195c4ad0e05e57a (git)
Affected: 456a8a646b2563438c16a9b27decf9aa717f1ebb , < 84f8b76d24273175a22713e83e90874e1880d801 (git)
Affected: 456a8a646b2563438c16a9b27decf9aa717f1ebb , < 66b689efd08227da2c5ca49b58b30a95d23c695a (git)
Affected: 456a8a646b2563438c16a9b27decf9aa717f1ebb , < b9c310d72783cc2f30d103eed83920a5a29c671a (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 5.10.253 , ≤ 5.10.* (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.168 , ≤ 6.1.* (semver)
Unaffected: 6.6.131 , ≤ 6.6.* (semver)
Unaffected: 6.12.80 , ≤ 6.12.* (semver)
Unaffected: 6.18.21 , ≤ 6.18.* (semver)
Unaffected: 6.19.11 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/can/gw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e7c99348b0612b2bc02d5ce6ff9873261cc7605f",
              "status": "affected",
              "version": "456a8a646b2563438c16a9b27decf9aa717f1ebb",
              "versionType": "git"
            },
            {
              "lessThan": "999ca48d55a8a46da21519db7e834e5867200379",
              "status": "affected",
              "version": "456a8a646b2563438c16a9b27decf9aa717f1ebb",
              "versionType": "git"
            },
            {
              "lessThan": "a025283d7f7404c739225e457fb99db2368bb544",
              "status": "affected",
              "version": "456a8a646b2563438c16a9b27decf9aa717f1ebb",
              "versionType": "git"
            },
            {
              "lessThan": "54ecdf76a55e75c1f5085e440f8ab671a3283ef5",
              "status": "affected",
              "version": "456a8a646b2563438c16a9b27decf9aa717f1ebb",
              "versionType": "git"
            },
            {
              "lessThan": "c4e8eaa75fa0b6bcbfa5356d6195c4ad0e05e57a",
              "status": "affected",
              "version": "456a8a646b2563438c16a9b27decf9aa717f1ebb",
              "versionType": "git"
            },
            {
              "lessThan": "84f8b76d24273175a22713e83e90874e1880d801",
              "status": "affected",
              "version": "456a8a646b2563438c16a9b27decf9aa717f1ebb",
              "versionType": "git"
            },
            {
              "lessThan": "66b689efd08227da2c5ca49b58b30a95d23c695a",
              "status": "affected",
              "version": "456a8a646b2563438c16a9b27decf9aa717f1ebb",
              "versionType": "git"
            },
            {
              "lessThan": "b9c310d72783cc2f30d103eed83920a5a29c671a",
              "status": "affected",
              "version": "456a8a646b2563438c16a9b27decf9aa717f1ebb",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/can/gw.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.4"
            },
            {
              "lessThan": "5.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.253",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.203",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.168",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.131",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.80",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.21",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.253",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.203",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.168",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.131",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.80",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.21",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.11",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "5.4",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: gw: fix OOB heap access in cgw_csum_crc8_rel()\n\ncgw_csum_crc8_rel() correctly computes bounds-safe indices via calc_idx():\n\n    int from = calc_idx(crc8-\u003efrom_idx, cf-\u003elen);\n    int to   = calc_idx(crc8-\u003eto_idx,   cf-\u003elen);\n    int res  = calc_idx(crc8-\u003eresult_idx, cf-\u003elen);\n\n    if (from \u003c 0 || to \u003c 0 || res \u003c 0)\n        return;\n\nHowever, the loop and the result write then use the raw s8 fields directly\ninstead of the computed variables:\n\n    for (i = crc8-\u003efrom_idx; ...)        /* BUG: raw negative index */\n    cf-\u003edata[crc8-\u003eresult_idx] = ...;    /* BUG: raw negative index */\n\nWith from_idx = to_idx = result_idx = -64 on a 64-byte CAN FD frame,\ncalc_idx(-64, 64) = 0 so the guard passes, but the loop iterates with\ni = -64, reading cf-\u003edata[-64], and the write goes to cf-\u003edata[-64].\nThis write might end up to 56 (7.0-rc) or 40 (\u003c= 6.19) bytes before the\nstart of the canfd_frame on the heap.\n\nThe companion function cgw_csum_xor_rel() uses `from`/`to`/`res`\ncorrectly throughout; fix cgw_csum_crc8_rel() to match.\n\nConfirmed with KASAN on linux-7.0-rc2:\n  BUG: KASAN: slab-out-of-bounds in cgw_csum_crc8_rel+0x515/0x5b0\n  Read of size 1 at addr ffff8880076619c8 by task poc_cgw_oob/62\n\nTo configure the can-gw crc8 checksums CAP_NET_ADMIN is needed."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:A - The vulnerable function runs in the CAN gateway receive path for CAN/CAN FD frames, after a matching gateway rule processes traffic. In a reasonable automotive or industrial CAN gateway deployment, an attacker on the same CAN segment can send matching CAN FD frames, so this is Adjacent.\nAC:L - There is no race or probabilistic condition; once an affected CRC8 relative-index gateway rule exists, the attacker can choose CAN ID, payload length, and frame contents to trigger the bad negative index path reliably. A 64-byte CAN FD frame reaches the demonstrated OOB case directly.\nPR:N - No host privileges are required to inject trigger CAN FD traffic into an already configured gateway route on the CAN segment. Creating or changing the rule requires CAP_NET_ADMIN in init_user_ns, but the highest reasonable deployed gateway scenario only requires attacker-controlled bus traffic.\nUI:N - No victim user action is required after the affected gateway configuration is present. The vulnerable code runs automatically while processing matching CAN FD frames.\nS:U - The impact is within the same kernel security authority as the vulnerable CAN gateway code. This is not a VM escape, IOMMU bypass, or other cross-scope boundary violation.\nC:H - The bug performs out-of-bounds heap reads before the CAN FD frame while computing CRC8. Because this is kernel heap memory exposure potential from memory corruption, confidentiality impact is High.\nI:H - The bug performs an out-of-bounds heap write through cf-\u003edata[result_idx] using a raw negative index. Kernel heap corruption is defensibly exploitable for integrity compromise, so integrity impact is High.\nA:H - KASAN confirms a slab-out-of-bounds access in the receive path, and repeated crafted frames can trigger kernel memory corruption. This can crash or destabilize the kernel, so availability impact is High."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:23:34.970Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e7c99348b0612b2bc02d5ce6ff9873261cc7605f"
        },
        {
          "url": "https://git.kernel.org/stable/c/999ca48d55a8a46da21519db7e834e5867200379"
        },
        {
          "url": "https://git.kernel.org/stable/c/a025283d7f7404c739225e457fb99db2368bb544"
        },
        {
          "url": "https://git.kernel.org/stable/c/54ecdf76a55e75c1f5085e440f8ab671a3283ef5"
        },
        {
          "url": "https://git.kernel.org/stable/c/c4e8eaa75fa0b6bcbfa5356d6195c4ad0e05e57a"
        },
        {
          "url": "https://git.kernel.org/stable/c/84f8b76d24273175a22713e83e90874e1880d801"
        },
        {
          "url": "https://git.kernel.org/stable/c/66b689efd08227da2c5ca49b58b30a95d23c695a"
        },
        {
          "url": "https://git.kernel.org/stable/c/b9c310d72783cc2f30d103eed83920a5a29c671a"
        }
      ],
      "title": "can: gw: fix OOB heap access in cgw_csum_crc8_rel()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31570",
    "datePublished": "2026-04-24T14:35:49.435Z",
    "dateReserved": "2026-03-09T15:48:24.117Z",
    "dateUpdated": "2026-08-05T12:23:34.970Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-31570",
      "date": "2026-09-15",
      "epss": "0.00262",
      "percentile": "0.18138"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-31570\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-04-24T15:16:31.520\",\"lastModified\":\"2026-06-17T10:33:59.913\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: gw: fix OOB heap access in cgw_csum_crc8_rel()\\n\\ncgw_csum_crc8_rel() correctly computes bounds-safe indices via calc_idx():\\n\\n    int from = calc_idx(crc8-\u003efrom_idx, cf-\u003elen);\\n    int to   = calc_idx(crc8-\u003eto_idx,   cf-\u003elen);\\n    int res  = calc_idx(crc8-\u003eresult_idx, cf-\u003elen);\\n\\n    if (from \u003c 0 || to \u003c 0 || res \u003c 0)\\n        return;\\n\\nHowever, the loop and the result write then use the raw s8 fields directly\\ninstead of the computed variables:\\n\\n    for (i = crc8-\u003efrom_idx; ...)        /* BUG: raw negative index */\\n    cf-\u003edata[crc8-\u003eresult_idx] = ...;    /* BUG: raw negative index */\\n\\nWith from_idx = to_idx = result_idx = -64 on a 64-byte CAN FD frame,\\ncalc_idx(-64, 64) = 0 so the guard passes, but the loop iterates with\\ni = -64, reading cf-\u003edata[-64], and the write goes to cf-\u003edata[-64].\\nThis write might end up to 56 (7.0-rc) or 40 (\u003c= 6.19) bytes before the\\nstart of the canfd_frame on the heap.\\n\\nThe companion function cgw_csum_xor_rel() uses `from`/`to`/`res`\\ncorrectly throughout; fix cgw_csum_crc8_rel() to match.\\n\\nConfirmed with KASAN on linux-7.0-rc2:\\n  BUG: KASAN: slab-out-of-bounds in cgw_csum_crc8_rel+0x515/0x5b0\\n  Read of size 1 at addr ffff8880076619c8 by task poc_cgw_oob/62\\n\\nTo configure the can-gw crc8 checksums CAP_NET_ADMIN is needed.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"net/can/gw.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"456a8a646b2563438c16a9b27decf9aa717f1ebb\",\"lessThan\":\"e7c99348b0612b2bc02d5ce6ff9873261cc7605f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"456a8a646b2563438c16a9b27decf9aa717f1ebb\",\"lessThan\":\"999ca48d55a8a46da21519db7e834e5867200379\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"456a8a646b2563438c16a9b27decf9aa717f1ebb\",\"lessThan\":\"a025283d7f7404c739225e457fb99db2368bb544\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"456a8a646b2563438c16a9b27decf9aa717f1ebb\",\"lessThan\":\"54ecdf76a55e75c1f5085e440f8ab671a3283ef5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"456a8a646b2563438c16a9b27decf9aa717f1ebb\",\"lessThan\":\"c4e8eaa75fa0b6bcbfa5356d6195c4ad0e05e57a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"456a8a646b2563438c16a9b27decf9aa717f1ebb\",\"lessThan\":\"84f8b76d24273175a22713e83e90874e1880d801\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"456a8a646b2563438c16a9b27decf9aa717f1ebb\",\"lessThan\":\"66b689efd08227da2c5ca49b58b30a95d23c695a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"456a8a646b2563438c16a9b27decf9aa717f1ebb\",\"lessThan\":\"b9c310d72783cc2f30d103eed83920a5a29c671a\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"net/can/gw.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.4\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.4\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.253\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.203\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.168\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.131\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.80\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.21\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.19.11\",\"lessThanOrEqual\":\"6.19.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.4.1\",\"versionEndExcluding\":\"5.10.253\",\"matchCriteriaId\":\"5CE4B3A5-1831-420D-B001-512B8103441C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.203\",\"matchCriteriaId\":\"20DDB3E9-AABF-4107-ADB0-5362AA067045\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.168\",\"matchCriteriaId\":\"E2DDDCA1-6DAB-4018-B920-8F045DDD8D3B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.131\",\"matchCriteriaId\":\"CE6ED4D4-0046-4573-BFA9-D64143B6A89F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.80\",\"matchCriteriaId\":\"97EB19EC-A11E-49C6-9D2F-6F6EC6CB98B6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.18.21\",\"matchCriteriaId\":\"ED39847A-3B46-4729-B7CA-B2C30B9FA8FE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.19\",\"versionEndExcluding\":\"6.19.11\",\"matchCriteriaId\":\"4CA2E747-A9EC-4518-9AA2-B4247FC748B7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.4:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"4D70AB13-37BE-4BD3-A652-10191F1642E4\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"F253B622-8837-4245-BCE5-A7BF8FC76A16\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"F666C8D8-6538-46D4-B318-87610DE64C34\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"02259FDA-961B-47BC-AE7F-93D7EC6E90C2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"58A9FEFF-C040-420D-8F0A-BFDAAA1DF258\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"1D2315C0-D46F-4F85-9754-F9E5E11374A6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*\",\"matchCriteriaId\":\"512EE3A8-A590-4501-9A94-5D4B268D6138\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/54ecdf76a55e75c1f5085e440f8ab671a3283ef5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/66b689efd08227da2c5ca49b58b30a95d23c695a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/84f8b76d24273175a22713e83e90874e1880d801\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/999ca48d55a8a46da21519db7e834e5867200379\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a025283d7f7404c739225e457fb99db2368bb544\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b9c310d72783cc2f30d103eed83920a5a29c671a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c4e8eaa75fa0b6bcbfa5356d6195c4ad0e05e57a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e7c99348b0612b2bc02d5ce6ff9873261cc7605f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-02T17:14:36+00:00",
      "cve": "CVE-2026-31570",
      "id": "CVE-2026-31570",
      "initial_release_date": "2026-04-24T00:00:00+00:00",
      "product_status:known_affected": "260",
      "product_status:known_not_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: can: gw: fix OOB heap access in cgw_csum_crc8_rel()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-31570.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-08-21T01:15:09Z",
      "cve": "CVE-2026-31570",
      "id": "CVE-2026-31570",
      "initial_release_date": "2026-04-25T01:39:10Z",
      "product_status:first_fixed": "55",
      "product_status:known_affected": "394",
      "product_status:known_not_affected": "113",
      "product_status:recommended": "536",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-31570",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-31570.json",
      "version": "19"
    }
  }
}



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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.