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Critical

net: bcmgenet: fix off-by-one in bcmgenet_put_txcb

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix off-by-one in bcmgenet_put_txcb The write_ptr points to the next open tx_cb. We want to return the tx_cb that gets rewinded, so we must rewind the pointer first then return the tx_cb that it points to. That way the txcb can be correctly cleaned up.

Announced Group revision 1
Original source ↗

CVE-2026-53088

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-2026-53088

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": "876dbadd53a7102e2a84afc84ea2bd3ee6dc5636",
        "lessThan": "14e9f86564fff7bcf7f45c1b69080e837b31d185",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "876dbadd53a7102e2a84afc84ea2bd3ee6dc5636",
        "lessThan": "fb9a3c1f547d0ff024dbfe7b6f327626ddf0a3de",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "876dbadd53a7102e2a84afc84ea2bd3ee6dc5636",
        "lessThan": "85f34ec320d3881badfd4edc5fee5cd5012bb54d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "876dbadd53a7102e2a84afc84ea2bd3ee6dc5636",
        "lessThan": "2a74590170427a3ca7cc4bb8690cdd559129c29c",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "876dbadd53a7102e2a84afc84ea2bd3ee6dc5636",
        "lessThan": "29394f722f620281f2ee9a47f947734e53d72c90",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "876dbadd53a7102e2a84afc84ea2bd3ee6dc5636",
        "lessThan": "4cab761fc51c65aef741fcece4a18f3554edbc09",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "876dbadd53a7102e2a84afc84ea2bd3ee6dc5636",
        "lessThan": "72df896e31ddd06fcc5a789f025ad7a62a18bc9b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "876dbadd53a7102e2a84afc84ea2bd3ee6dc5636",
        "lessThan": "57f3f53d2c9c5a9e133596e2f7bc1c50688a6d38",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3bdf77194ea822390b405639b77659071fd2c2e9",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3.16.50",
        "lessThan": "3.17",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/broadcom/genet/bcmgenet.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.13"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.13",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.258",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.209",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.175",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.141",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.91",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.33",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.0.10",
        "versionType": "semver",
        "lessThanOrEqual": "7.0.*"
      },
      {
        "status": "unaffected",
        "version": "7.1",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/broadcom/genet/bcmgenet.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-53088

Source reference: /cveMetadata/cveId

Publisher severity

critical

Source reference: /containers/cna/metrics

Event
#40749 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-53088 · Revision 1Source updated