CVE-2026-72406: linux
Vulnerability summary
CVE-2026-72406 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.9% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 25 · Related 25Timeline
- 15-08-2026PublishedVulnerability first disclosed.
- 16-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: net: sungem: fix probe error cleanup gem_init_one() calls gem_remove_one() when register_netdev() fails. gem_remove_one() unregisters and frees resources owned by the net_device, including the DMA block, MMIO mapping, PCI regions, and the net_device itself. gem_init_one() then falls through to its own cleanup labels and frees the same resources again. Keep the register_netdev() error path in gem_init_one(): clear drvdata so PM/remove paths do not see a half-registered device, remove the NAPI instance added during probe, and let the existing cleanup labels release the resources once. The issue was found by a local static-analysis checker for probe error paths. The reported path was manually inspected before sending this fix. Compile-tested with CONFIG_SUNGEM=y. Runtime testing was not performed because no sungem hardware is available.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.17%
Chance of exploitation in the next 30 days
Percentile
6%
Versus all other CVEs
30-day change
+0.01 pp
From 0.16% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu169 products
- linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-38.38
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1014.14
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian1 product
- linux< 6.1.180-1 | < 6.12.100-1 | < 7.1.5-1
Linux1 product
- linux≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < f3bd60b26814b7c3c57c629abb0857dfc76d214a | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < f1d04fefb0c2a2de32d9cee22cdc2088be3758d1 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 331c99029a1cee1111f82f63d15b3cdebefbd341 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < a63eaf7605d1579cf3f551792e478cfaf5ac37d1 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < fb73cdc50b6755e5c3a80a195b2708a39ada0230 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < b15a3cc68e2450aa0edd94a74a7bdd45fcc17dd9 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < bc49e8746584564dba47d963d1916cc876fc6f6b | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 36dea2f639249460d13f6ca66b2a9064187cd34d | 2.6.12
3 vendors · 171 products