CVE-2026-89522

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-89522

Key Details

CVE	CVE-2026-89522
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: staging/ipu7: fix async notifier UAF on probe error path

isys_register_devices() registers the V4L2 async notifier via

isys_notifier_init(). If a subsequent probe step such as

isys_fw_log_init() fails, isys_probe() jumps to the out_cleanup label

which only calls isys_unregister_devices(). That helper tears down the

video devices, subdevices, V4L2 device and media device, but never

unregisters or cleans up the async notifier.

As a result the notifier stays chained in the global notifier_list while

the enclosing struct ipu7_isys is freed by devres, leading to list

corruption and a use-after-free the next time the list is walked.

The remove path already does the right thing by calling

isys_notifier_cleanup() before isys_unregister_devices(). Mirror that on

the probe error path so the notifier is unregistered and cleaned up

before the device is torn down. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-89522
CVE	https://www.cve.org/CVERecord?id=CVE-2026-89522

Source

Reference

NVD

CVE