{"id":"CVE-2026-31737","title":"net: ftgmac100: fix ring allocation unwind on open failure","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ftgmac100: fix ring allocation unwind on open failure\n\nftgmac100_alloc_rings() allocates rx_skbs, tx_skbs, rxdes, txdes, and\nrx_scratch in stages. On intermediate …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < 184b3a500d60ea48d1b176103cff1706c456edf3","Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < 78da43320d9d6ed788147fb085184e4fc801f057","Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < a7e1bf392acf11dc4209820fef75758f6e42bd65","Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < 8a71911fc7eeea930153322bc1efc065db8cd97e","Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < d45230081f19c280096241353c26b0de457de795","Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < 8351d18989c8642fc53e2e12d94e42314a39b078","Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < 82f86111f0704ab2ded11a2033bc6cf0be3e09ea","Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < c0fd0fe745f5e8c568d898cd1513d0083e46204a","Linux 4.12"],"published":"2026-05-01","updated":"2026-09-08","sourceUpdated":"2026-09-08T08:48:12.170Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-31737","references":[{"url":"https://git.kernel.org/stable/c/184b3a500d60ea48d1b176103cff1706c456edf3"},{"url":"https://git.kernel.org/stable/c/78da43320d9d6ed788147fb085184e4fc801f057"},{"url":"https://git.kernel.org/stable/c/a7e1bf392acf11dc4209820fef75758f6e42bd65"},{"url":"https://git.kernel.org/stable/c/8a71911fc7eeea930153322bc1efc065db8cd97e"},{"url":"https://git.kernel.org/stable/c/d45230081f19c280096241353c26b0de457de795"},{"url":"https://git.kernel.org/stable/c/8351d18989c8642fc53e2e12d94e42314a39b078"},{"url":"https://git.kernel.org/stable/c/82f86111f0704ab2ded11a2033bc6cf0be3e09ea"},{"url":"https://git.kernel.org/stable/c/c0fd0fe745f5e8c568d898cd1513d0083e46204a"}],"tags":["cve.org"],"epss":0.00129,"epssPercentile":0.02885,"ingestedAt":"2026-09-08T15:33:26.989Z","slug":"CVE-2026-31737","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet: ftgmac100: fix ring allocation unwind on open failure\n\nftgmac100_alloc_rings() allocates rx_skbs, tx_skbs, rxdes, txdes, and\nrx_scratch in stages. On intermediate failures it returned -ENOMEM\ndirectly, leaking resources allocated earlier in the function.\n\nRework the failure path to use staged local unwind labels and free\nallocated resources in reverse order before returning -ENOMEM. This\nmatches common netdev allocation cleanup style.\n\n## Affected\n\n- `Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < 184b3a500d60ea48d1b176103cff1706c456edf3`\n- `Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < 78da43320d9d6ed788147fb085184e4fc801f057`\n- `Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < a7e1bf392acf11dc4209820fef75758f6e42bd65`\n- `Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < 8a71911fc7eeea930153322bc1efc065db8cd97e`\n- `Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < d45230081f19c280096241353c26b0de457de795`\n- `Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < 8351d18989c8642fc53e2e12d94e42314a39b078`\n- `Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < 82f86111f0704ab2ded11a2033bc6cf0be3e09ea`\n- `Linux >= d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e < c0fd0fe745f5e8c568d898cd1513d0083e46204a`\n- `Linux 4.12`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}