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net: ftgmac100: fix ring allocation unwind on open failure

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: net: ftgmac100: fix ring allocation unwind on open failure ftgmac100_alloc_rings() allocates rx_skbs, tx_skbs, rxdes, txdes, and rx_scratch in stages. On intermediate failures it returned -ENOMEM directly, leaking resources allocated earlier in the function. Rework the failure path to use staged local unwind labels and free allocated resources in reverse order before returning -ENOMEM. This matches common netdev allocation cleanup style.

Announced Source revision 1
Original source ↗

CVE-2026-31737

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-2026-31737

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": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
        "lessThan": "184b3a500d60ea48d1b176103cff1706c456edf3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
        "lessThan": "78da43320d9d6ed788147fb085184e4fc801f057",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
        "lessThan": "a7e1bf392acf11dc4209820fef75758f6e42bd65",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
        "lessThan": "8a71911fc7eeea930153322bc1efc065db8cd97e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
        "lessThan": "d45230081f19c280096241353c26b0de457de795",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
        "lessThan": "8351d18989c8642fc53e2e12d94e42314a39b078",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
        "lessThan": "82f86111f0704ab2ded11a2033bc6cf0be3e09ea",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e",
        "lessThan": "c0fd0fe745f5e8c568d898cd1513d0083e46204a",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/faraday/ftgmac100.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.12"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.12",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.253",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.203",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.168",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.134",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.81",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.22",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "6.19.12",
        "versionType": "semver",
        "lessThanOrEqual": "6.19.*"
      },
      {
        "status": "unaffected",
        "version": "7.0",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/net/ethernet/faraday/ftgmac100.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-31737

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#28319 · Revision 1
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Publisher date
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