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can: bcm: validate frame length in bcm_rx_setup() for RTR replies

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: can: bcm: validate frame length in bcm_rx_setup() for RTR replies bcm_tx_setup() validates cf->len against the CAN/CAN FD DLC limits before installing frames for TX_SETUP, but bcm_rx_setup() never did the same for the RTR-reply frame configured via RX_SETUP with RX_RTR_FRAME.

Announced Source revision 1
Original source ↗

CVE-2026-72114

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-72114

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
        "lessThan": "cc1f9569f1c1adf74fa69d6f716a31b58a2fc6ce",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
        "lessThan": "204f2b232717bc470ddb9e1da1d27dd9c6ef0caa",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
        "lessThan": "e061624c0a86c3c26a2bf017e432fbc93ad68f3a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
        "lessThan": "7d966cdee006911d3957e1a4e72cb93c39cd8c1e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
        "lessThan": "1b475c0c72f44622a320a4386ce9e76f85e69bc7",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
        "lessThan": "deb6a697cce3f021e731df543597f37a5e54caab",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
        "lessThan": "59bfddea64159594feb62ef11b7d7a33c8ee3783",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
        "lessThan": "62ec41f364648be79d54d94d0d240ee326948afd",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/can/bcm.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "2.6.25"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "2.6.25",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.265",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.216",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.183",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.148",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.101",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.42",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.1.5",
        "versionType": "semver",
        "lessThanOrEqual": "7.1.*"
      },
      {
        "status": "unaffected",
        "version": "7.2",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/can/bcm.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-72114

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#32942 · Revision 1
Added to Heist Feed
Publisher date
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