net: ftgmac100: fix ring allocation unwind on open failure

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-31737
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-01 15:16:36 UTC
Updated2026-07-14 13:18:48 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000240000 probability, percentile 0.068060000 (date 2026-05-05)

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e 184b3a500d60ea48d1b176103cff1706c456edf3 git Not specified
CNA Linux Linux affected d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e 78da43320d9d6ed788147fb085184e4fc801f057 git Not specified
CNA Linux Linux affected d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e a7e1bf392acf11dc4209820fef75758f6e42bd65 git Not specified
CNA Linux Linux affected d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e 8a71911fc7eeea930153322bc1efc065db8cd97e git Not specified
CNA Linux Linux affected d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e d45230081f19c280096241353c26b0de457de795 git Not specified
CNA Linux Linux affected d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e 8351d18989c8642fc53e2e12d94e42314a39b078 git Not specified
CNA Linux Linux affected d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e 82f86111f0704ab2ded11a2033bc6cf0be3e09ea git Not specified
CNA Linux Linux affected d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e c0fd0fe745f5e8c568d898cd1513d0083e46204a git Not specified
CNA Linux Linux affected 4.12 Not specified
CNA Linux Linux unaffected 4.12 semver Not specified
CNA Linux Linux unaffected 5.10.253 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.203 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.168 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.134 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.81 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.22 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.12 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.6 * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/c0fd0fe745f5e8c568d898cd1513d0083e46204a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-082556.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/8a71911fc7eeea930153322bc1efc065db8cd97e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/82f86111f0704ab2ded11a2033bc6cf0be3e09ea 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/184b3a500d60ea48d1b176103cff1706c456edf3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-019113.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/8351d18989c8642fc53e2e12d94e42314a39b078 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a7e1bf392acf11dc4209820fef75758f6e42bd65 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/d45230081f19c280096241353c26b0de457de795 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/78da43320d9d6ed788147fb085184e4fc801f057 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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