CVE-2026-89887

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-89887

Key Details

CVE	CVE-2026-89887
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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

media: i2c: ov7740: fix use-after-destroy in remove

The ov7740_remove() function had a severe teardown order bug where it

destroyed the driver's mutex before freeing the V4L2 control handler

which relies on that mutex, leading to a use-after-destroy kernel panic.

Furthermore, the driver explicitly called v4l2_ctrl_handler_free() and

mutex_destroy() sequentially, but then called ov7740_free_controls()

which invokes both of them a second time, resulting in a double-free.

This patch fixes the issue by unregistering the subdevice first, and

relying exclusively on ov7740_free_controls() to safely tear down the

mutex and control handler in the correct order. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-89887
CVE	https://www.cve.org/CVERecord?id=CVE-2026-89887

Source

Reference

NVD

CVE