CVE-2026-46285

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

08/06/2026

Last modified:

08/07/2026

Description

In the Linux kernel, the following vulnerability has been resolved: mtd: docg3: fix use-after-free in docg3_release() In docg3_release(), the docg3 pointer is obtained from cascade->floors[0]->priv before the loop that calls doc_release_device() on each floor. doc_release_device() frees the docg3 struct via kfree(docg3) at line 1881. After the loop, docg3->cascade->bch dereferences the already-freed pointer. Fix this by accessing cascade->bch directly, which is equivalent since docg3->cascade points back to the same cascade struct, and is already available as a local variable. This also removes the now-unused docg3 local variable.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

7.80

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	5.8 (including)	5.10.258 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.209 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.175 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.140 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.12.86 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.13 (including)	6.18.27 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.19 (including)	7.0.4 (excluding)

To consult the complete list of CPE names with products and versions, see this page

CVE-2026-46285

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools