Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2026-46240

Severity CVSS v4.0:
Pending analysis
Type:
CWE-416 Use After Free
Publication date:
28/05/2026
Last modified:
10/06/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> media: iris: Fix use-after-free in iris_release_internal_buffers()<br /> <br /> The recent change in commit 1dabf00ee206 ("media: iris: gen1: Destroy<br /> internal buffers after FW releases") introduced a regression where<br /> session_release_buf() may free the buffer. The caller,<br /> iris_release_internal_buffers(), continued to access `buffer` after the<br /> call, leading to a potential use-after-free.<br /> <br /> Fix this by setting BUF_ATTR_PENDING_RELEASE before calling<br /> session_release_buf(), and reverting the flag if the call fails. This<br /> ensures no dereference occurs after potential freeing.

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:*:*:*:*:*:*:*:* 6.18.16 (including) 6.18.32 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.19.6 (including) 7.0.9 (excluding)
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*

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


References to Advisories, Solutions, and Tools