---
id: CVE-2026-72406
title: 'net: sungem: fix probe error cleanup'
summary: |-
  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 …
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    f3bd60b26814b7c3c57c629abb0857dfc76d214a
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    f1d04fefb0c2a2de32d9cee22cdc2088be3758d1
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    331c99029a1cee1111f82f63d15b3cdebefbd341
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    a63eaf7605d1579cf3f551792e478cfaf5ac37d1
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    fb73cdc50b6755e5c3a80a195b2708a39ada0230
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    b15a3cc68e2450aa0edd94a74a7bdd45fcc17dd9
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    bc49e8746584564dba47d963d1916cc876fc6f6b
  - >-
    Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <
    36dea2f639249460d13f6ca66b2a9064187cd34d
  - Linux 2.6.12
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-16T18:49:10.757468Z'
published: '2026-08-15'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T18:55:22.076Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-72406'
references:
  - url: 'https://git.kernel.org/stable/c/f3bd60b26814b7c3c57c629abb0857dfc76d214a'
  - url: 'https://git.kernel.org/stable/c/f1d04fefb0c2a2de32d9cee22cdc2088be3758d1'
  - url: 'https://git.kernel.org/stable/c/331c99029a1cee1111f82f63d15b3cdebefbd341'
  - url: 'https://git.kernel.org/stable/c/a63eaf7605d1579cf3f551792e478cfaf5ac37d1'
  - url: 'https://git.kernel.org/stable/c/fb73cdc50b6755e5c3a80a195b2708a39ada0230'
  - url: 'https://git.kernel.org/stable/c/b15a3cc68e2450aa0edd94a74a7bdd45fcc17dd9'
  - url: 'https://git.kernel.org/stable/c/bc49e8746584564dba47d963d1916cc876fc6f6b'
  - url: 'https://git.kernel.org/stable/c/36dea2f639249460d13f6ca66b2a9064187cd34d'
tags:
  - cve.org
epss: 0.00176
epssPercentile: 0.06636
ingestedAt: '2026-10-16T19:46:24.399Z'
---

## Overview

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.

## Affected

- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f3bd60b26814b7c3c57c629abb0857dfc76d214a`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f1d04fefb0c2a2de32d9cee22cdc2088be3758d1`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 331c99029a1cee1111f82f63d15b3cdebefbd341`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a63eaf7605d1579cf3f551792e478cfaf5ac37d1`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fb73cdc50b6755e5c3a80a195b2708a39ada0230`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b15a3cc68e2450aa0edd94a74a7bdd45fcc17dd9`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < bc49e8746584564dba47d963d1916cc876fc6f6b`
- `Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 36dea2f639249460d13f6ca66b2a9064187cd34d`
- `Linux 2.6.12`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.