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)
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              "negate": false,
              "operator": "OR"
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      ],
      "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"
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          "url": "https://git.kernel.org/stable/c/18b1a868a2cda66fb438007ba47ce5f2484db381"
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      "title": "can: peak_usb: add bounds check for USB channel index",
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    "datePublished": "2026-08-15T12:26:59.411Z",
    "dateReserved": "2026-08-15T05:44:03.900Z",
    "dateUpdated": "2026-08-19T16:36:52.931Z",
    "state": "PUBLISHED"
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      "date": "2026-09-20",
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        "id": "CVE-2026-74457",
        "lastModified": "2026-08-19T17:21:02.533",
        "metrics": {},
        "published": "2026-08-15T13:17:50.333",
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        "vulnStatus": "Received"
      }
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    "redhat_vex": {
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      "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"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-02T01:04:36Z",
      "cve": "CVE-2026-74457",
      "id": "CVE-2026-74457",
      "initial_release_date": "2026-08-15T23:52:42Z",
      "product_status:known_affected": "265",
      "product_status:known_not_affected": "97",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-74457",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-74457.json",
      "version": "4"
    }
  }
}



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