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CVE-2026-31737

net: ftgmac100: fix ring allocation unwind on open failure

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 5.10.253, 5.15.203, 6.1.168, 6.6.134, 6.12.81, and 2 more
None on Exploit-DB, Metasploit or GitHub

Summary

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.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e · fixed in 184b3a500d60ea48d1b176103cff1706c456edf3; From d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e · fixed in 78da43320d9d6ed788147fb085184e4fc801f057; From d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e · fixed in a7e1bf392acf11dc4209820fef75758f6e42bd65; From d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e · fixed in 8a71911fc7eeea930153322bc1efc065db8cd97e; From d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e · fixed in d45230081f19c280096241353c26b0de457de795; From d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e · fixed in 8351d18989c8642fc53e2e12d94e42314a39b078; From d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e · fixed in 82f86111f0704ab2ded11a2033bc6cf0be3e09ea; From d72e01a0430f8a1ae7adb3cbf0b2e73fcd99252e · fixed in c0fd0fe745f5e8c568d898cd1513d0083e46204a

  • Linux Linux

    4.12

  • KernelLinux

    From 4.12.0 · fixed in 5.10.253; From 5.11.0 · fixed in 5.15.203; From 5.16.0 · fixed in 6.1.168; From 6.2.0 · fixed in 6.6.134; From 6.7.0 · fixed in 6.12.81; From 6.13.0 · fixed in 6.18.22; From 6.19.0 · fixed in 6.19.12

References 8

git.kernel.org