CVE-2026-74457 (GCVE-0-2026-74457)

Vulnerability from cvelistv5 – Published: 2026-08-15 12:26 – Updated: 2026-08-19 16:36
VLAI
Title
can: peak_usb: add bounds check for USB channel index
Summary
In the Linux kernel, the following vulnerability has been resolved: can: peak_usb: add bounds check for USB channel index The channel control index ctrl_idx is derived from rx->len which comes directly from a device USB payload. The mask 0x0f allows values 0-15, but the array size of usb_if->dev[] is only 2. Values 2-15 cause heap out-of-bounds read, eventually causing kernel panic in the IRQ context. Add bounds checking for ctrl_idx before the array access in both pcan_usb_pro_handle_canmsg() and pcan_usb_pro_handle_error().
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d8a199355f8f8a0797c00d98788d7282c9ea38bd , < 18b1a868a2cda66fb438007ba47ce5f2484db381 (git)
Affected: d8a199355f8f8a0797c00d98788d7282c9ea38bd , < 0c9268457bd6e4058fe55b4db01b16661c2eacf5 (git)
Affected: d8a199355f8f8a0797c00d98788d7282c9ea38bd , < 94fb6fe83ce152532b11b36730b30f3dc0c94217 (git)
Affected: d8a199355f8f8a0797c00d98788d7282c9ea38bd , < 825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f (git)
Affected: d8a199355f8f8a0797c00d98788d7282c9ea38bd , < f97b7e5e1cdaae15cd95b3a360028c7929664969 (git)
Affected: d8a199355f8f8a0797c00d98788d7282c9ea38bd , < 1acab790b7cecd4e144d1d18bdfe549e282f6b0b (git)
Affected: d8a199355f8f8a0797c00d98788d7282c9ea38bd , < 0149fdb50a30944827acf9600a2cc44de0325a7f (git)
Affected: d8a199355f8f8a0797c00d98788d7282c9ea38bd , < 39132f166ca8ce00ae60d8a9068e06a60943cc4b (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.4
Unaffected: 0 , < 3.4 (semver)
Unaffected: 5.10.265 , ≤ 5.10.* (semver)
Unaffected: 5.15.216 , ≤ 5.15.* (semver)
Unaffected: 6.1.183 , ≤ 6.1.* (semver)
Unaffected: 6.6.151 , ≤ 6.6.* (semver)
Unaffected: 6.12.103 , ≤ 6.12.* (semver)
Unaffected: 6.18.44 , ≤ 6.18.* (semver)
Unaffected: 7.1.8 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (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": [
            "drivers/net/can/usb/peak_usb/pcan_usb_pro.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "18b1a868a2cda66fb438007ba47ce5f2484db381",
              "status": "affected",
              "version": "d8a199355f8f8a0797c00d98788d7282c9ea38bd",
              "versionType": "git"
            },
            {
              "lessThan": "0c9268457bd6e4058fe55b4db01b16661c2eacf5",
              "status": "affected",
              "version": "d8a199355f8f8a0797c00d98788d7282c9ea38bd",
              "versionType": "git"
            },
            {
              "lessThan": "94fb6fe83ce152532b11b36730b30f3dc0c94217",
              "status": "affected",
              "version": "d8a199355f8f8a0797c00d98788d7282c9ea38bd",
              "versionType": "git"
            },
            {
              "lessThan": "825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f",
              "status": "affected",
              "version": "d8a199355f8f8a0797c00d98788d7282c9ea38bd",
              "versionType": "git"
            },
            {
              "lessThan": "f97b7e5e1cdaae15cd95b3a360028c7929664969",
              "status": "affected",
              "version": "d8a199355f8f8a0797c00d98788d7282c9ea38bd",
              "versionType": "git"
            },
            {
              "lessThan": "1acab790b7cecd4e144d1d18bdfe549e282f6b0b",
              "status": "affected",
              "version": "d8a199355f8f8a0797c00d98788d7282c9ea38bd",
              "versionType": "git"
            },
            {
              "lessThan": "0149fdb50a30944827acf9600a2cc44de0325a7f",
              "status": "affected",
              "version": "d8a199355f8f8a0797c00d98788d7282c9ea38bd",
              "versionType": "git"
            },
            {
              "lessThan": "39132f166ca8ce00ae60d8a9068e06a60943cc4b",
              "status": "affected",
              "version": "d8a199355f8f8a0797c00d98788d7282c9ea38bd",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/can/usb/peak_usb/pcan_usb_pro.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "3.4"
            },
            {
              "lessThan": "3.4",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.265",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.216",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.183",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.151",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.103",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.44",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.265",
                  "versionStartIncluding": "3.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.216",
                  "versionStartIncluding": "3.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.183",
                  "versionStartIncluding": "3.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.151",
                  "versionStartIncluding": "3.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.103",
                  "versionStartIncluding": "3.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.44",
                  "versionStartIncluding": "3.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.8",
                  "versionStartIncluding": "3.4",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "versionStartIncluding": "3.4",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: peak_usb: add bounds check for USB channel index\n\nThe channel control index ctrl_idx is derived from rx-\u003elen which comes\ndirectly from a device USB payload. The mask 0x0f allows values 0-15, but\nthe array size of usb_if-\u003edev[] is only 2. Values 2-15 cause heap\nout-of-bounds read, eventually causing kernel panic in the IRQ context.\n\nAdd bounds checking for ctrl_idx before the array access in both\npcan_usb_pro_handle_canmsg() and pcan_usb_pro_handle_error()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-19T16:36:52.931Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/18b1a868a2cda66fb438007ba47ce5f2484db381"
        },
        {
          "url": "https://git.kernel.org/stable/c/0c9268457bd6e4058fe55b4db01b16661c2eacf5"
        },
        {
          "url": "https://git.kernel.org/stable/c/94fb6fe83ce152532b11b36730b30f3dc0c94217"
        },
        {
          "url": "https://git.kernel.org/stable/c/825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f"
        },
        {
          "url": "https://git.kernel.org/stable/c/f97b7e5e1cdaae15cd95b3a360028c7929664969"
        },
        {
          "url": "https://git.kernel.org/stable/c/1acab790b7cecd4e144d1d18bdfe549e282f6b0b"
        },
        {
          "url": "https://git.kernel.org/stable/c/0149fdb50a30944827acf9600a2cc44de0325a7f"
        },
        {
          "url": "https://git.kernel.org/stable/c/39132f166ca8ce00ae60d8a9068e06a60943cc4b"
        }
      ],
      "title": "can: peak_usb: add bounds check for USB channel index",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-74457",
    "datePublished": "2026-08-15T12:26:59.411Z",
    "dateReserved": "2026-08-15T05:44:03.900Z",
    "dateUpdated": "2026-08-19T16:36:52.931Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-74457",
      "date": "2026-08-28",
      "epss": "0.00177",
      "percentile": "0.07261"
    },
    "microsoft_vex": {
      "current_release_date": "2026-08-23T14:44:05.000Z",
      "cve": "CVE-2026-74457",
      "id": "msrc_CVE-2026-74457",
      "initial_release_date": "2026-08-23T14:44:05.000Z",
      "product_status:known_affected": "1",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "can: peak_usb: add bounds check for USB channel index",
      "url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-74457.json",
      "version": "1"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-74457\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-08-15T13:17:50.333\",\"lastModified\":\"2026-08-19T17:21:02.533\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: peak_usb: add bounds check for USB channel index\\n\\nThe channel control index ctrl_idx is derived from rx-\u003elen which comes\\ndirectly from a device USB payload. The mask 0x0f allows values 0-15, but\\nthe array size of usb_if-\u003edev[] is only 2. Values 2-15 cause heap\\nout-of-bounds read, eventually causing kernel panic in the IRQ context.\\n\\nAdd bounds checking for ctrl_idx before the array access in both\\npcan_usb_pro_handle_canmsg() and pcan_usb_pro_handle_error().\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/can/usb/peak_usb/pcan_usb_pro.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"d8a199355f8f8a0797c00d98788d7282c9ea38bd\",\"lessThan\":\"18b1a868a2cda66fb438007ba47ce5f2484db381\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d8a199355f8f8a0797c00d98788d7282c9ea38bd\",\"lessThan\":\"0c9268457bd6e4058fe55b4db01b16661c2eacf5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d8a199355f8f8a0797c00d98788d7282c9ea38bd\",\"lessThan\":\"94fb6fe83ce152532b11b36730b30f3dc0c94217\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d8a199355f8f8a0797c00d98788d7282c9ea38bd\",\"lessThan\":\"825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d8a199355f8f8a0797c00d98788d7282c9ea38bd\",\"lessThan\":\"f97b7e5e1cdaae15cd95b3a360028c7929664969\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d8a199355f8f8a0797c00d98788d7282c9ea38bd\",\"lessThan\":\"1acab790b7cecd4e144d1d18bdfe549e282f6b0b\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d8a199355f8f8a0797c00d98788d7282c9ea38bd\",\"lessThan\":\"0149fdb50a30944827acf9600a2cc44de0325a7f\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d8a199355f8f8a0797c00d98788d7282c9ea38bd\",\"lessThan\":\"39132f166ca8ce00ae60d8a9068e06a60943cc4b\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/can/usb/peak_usb/pcan_usb_pro.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"3.4\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"3.4\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.265\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.216\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.183\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.151\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.103\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.44\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.8\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0149fdb50a30944827acf9600a2cc44de0325a7f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/0c9268457bd6e4058fe55b4db01b16661c2eacf5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/18b1a868a2cda66fb438007ba47ce5f2484db381\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/1acab790b7cecd4e144d1d18bdfe549e282f6b0b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/39132f166ca8ce00ae60d8a9068e06a60943cc4b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/94fb6fe83ce152532b11b36730b30f3dc0c94217\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f97b7e5e1cdaae15cd95b3a360028c7929664969\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-21T11:32:53+00:00",
      "cve": "CVE-2026-74457",
      "id": "CVE-2026-74457",
      "initial_release_date": "2026-08-15T00:00:00+00:00",
      "product_status:known_affected": "260",
      "product_status:known_not_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: can: peak_usb: add bounds check for USB channel index",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74457.json",
      "version": "3"
    }
  }
}



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.