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Vulnerability record · CVE-2026-46162 · published 28 May 2026

CVE-2026-46162: Linux kernel double free vulnerability

Linux · Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: ice: fix double free in ice_sf_eth_activate() error path When auxiliary_device_add() fails, ice_sf_eth_activate() jumps to aux_dev_uninit and calls auxiliary_device_uninit(&sf_dev->adev). The device release callback ice_sf_dev_release() frees sf_dev, but the current error path falls through to sf_dev_free and calls kfree(sf_dev) again, causing a double free. Keep kfree(sf_dev) for the auxiliary_device_init() failure path, but avoid falling through to sf_dev_free after auxiliary_device_uninit().

7.8 CVSS 3.1 High EPSS 0.18% · top 93.7% CWE-415 · Double free
7.8CVSS 3.1 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: ice: fix double free in ice_sf_eth_activate() error path When auxiliary_device_add() fails, ice_sf_eth_activate() jumps to aux_dev_uninit and calls auxiliary_device_uninit(&sf_dev->adev). The device release callback ice_sf_dev_release() frees sf_dev, but the current error path falls through to sf_dev_free and calls kfree(sf_dev) again, causing a double free. Keep kfree(sf_dev) for the auxiliary_device_init() failure path, but avoid falling through to sf_dev_free after auxiliary_device_uninit().

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/121d1f253aed515cd85748f68c664a6cb756e8ad Patch
https://git.kernel.org/stable/c/2ca30340b5028ddc3f17086a538feeff06167b1b Patch
https://git.kernel.org/stable/c/9aab1c3d7299285e2569cbc0ed5892d631a241b2 Patch
https://git.kernel.org/stable/c/d0c6a4816609f145ffcc74e64baa214c571c17c6 Patch

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Source: NIST National Vulnerability Database (record CVE-2026-46162), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.