CVE-2026-46240

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

media: iris: Fix use-after-free in iris_release_internal_buffers()

The recent change in commit 1dabf00ee206 ("media: iris: gen1: Destroy internal buffers after FW releases") introduced a regression where session_release_buf() may free the buffer. The caller, iris_release_internal_buffers(), continued to access `buffer` after the call, leading to a potential use-after-free.

Fix this by setting BUF_ATTR_PENDING_RELEASE before calling session_release_buf(), and reverting the flag if the call fails. This ensures no dereference occurs after potential freeing.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxLinux>= 7cde76db8883ec8a3d1456068079ecadbfb15ca5, < dd24998a4a4016fb9921916024399bd80f0d45c6; >= 1dabf00ee206eceb0f08a1fe5d1ce635f9064338, < 18c64439f249859b6140f7bf8bcf95c8ed841f28; >= 1dabf00ee206eceb0f08a1fe5d1ce635f9064338, < f27cfdcfc916bb59297825805f4c3499f89f9e76; d4457f23ac0130240053a34be663f0fade3bb371; >= 6.18.16, < 6.18.32; >= 6.19.6, < 6.20
LinuxLinux7.0

References

Timeline

Published
May 28, 2026
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2026-46240: High severity, CVSS 7.8 | Vulnix