CVE-2026-31737: Linux vulnerability

CVE-2026-31737: net: ftgmac100: fix ring allocation unwind on open failure

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.

UnknownCVSS not scoredNot KEV-listedUpdatedOct 15, 2026, 01:18 UTC (UTC+00:00)

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2026-31737 mapping review

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: May 1, 2026, 14:14 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

3Timeline events

1ADP providers

12Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
Mar 9, 2026, 15:48 UTC (UTC+00:00)
CVE publishedCVE Program
The CVE record was published.
May 1, 2026, 14:14 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
Oct 15, 2026, 01:18 UTC (UTC+00:00)

ADP provider summaries

Source materials

CVE List V5 sourceCVE List V5
https://git.kernel.org/stable/c/184b3a500d60ea48d1b176103cff1706c456edf3CVE reference, Linux
https://git.kernel.org/stable/c/78da43320d9d6ed788147fb085184e4fc801f057CVE reference, Linux
https://git.kernel.org/stable/c/a7e1bf392acf11dc4209820fef75758f6e42bd65CVE reference, Linux
https://git.kernel.org/stable/c/8a71911fc7eeea930153322bc1efc065db8cd97eCVE reference, Linux
https://git.kernel.org/stable/c/d45230081f19c280096241353c26b0de457de795CVE reference, Linux
https://git.kernel.org/stable/c/8351d18989c8642fc53e2e12d94e42314a39b078CVE reference, Linux
https://git.kernel.org/stable/c/82f86111f0704ab2ded11a2033bc6cf0be3e09eaCVE reference, Linux
https://git.kernel.org/stable/c/c0fd0fe745f5e8c568d898cd1513d0083e46204aCVE reference, Linux
https://cert-portal.siemens.com/productcert/html/ssa-082556.htmlCVE reference, siemens-SADP
https://cert-portal.siemens.com/productcert/html/ssa-019113.htmlCVE reference, siemens-SADP
https://cert-portal.siemens.com/productcert/html/ssa-457936.htmlCVE reference, siemens-SADP

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

LinuxLinuxd72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e, d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e, d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e, d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e, d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e, d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e, d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e, d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252eunaffected

LinuxLinux4.12, 0, 5.10.253, 5.15.203, 6.1.168, 6.6.134, 6.12.81, 6.18.22, 6.19.12, 7.0affected

Weakness

CWE details

No CWE listed

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