CVE-2026-89599 (CVSS 8.4)

Description

In the Linux kernel, the following vulnerability has been resolved: fbdev: omapfb: panel-dsi-cm: initialize lock before registering display dsicm_probe() registers the display before initializing ddata->lock. Once omapdss_register_display() publishes the display, another consumer can reach a dsicm callback that takes this mutex while it is still uninitialized. Initialize the mutex before registering the display so the published callbacks always see a valid lock.

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CVSS v3.1 Score

8.4

HIGH

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

EPSS — Exploit Prediction

0.0014

Probability of exploitation

0.04%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

References

Other References

https://git.kernel.org/stable/c/09db79078f25c048cfb5d7849795c70415ab8574 https://git.kernel.org/stable/c/2c3f8c9c995db185284b079f39177e85b2258176 https://git.kernel.org/stable/c/302d19fbc7dc7e9f498930c66d65ff711ba5ba9f https://git.kernel.org/stable/c/76818e81cfcae33b09b739de09162c7d8d89bf0b https://git.kernel.org/stable/c/e7023d18c4eb292f886b31a3576402cb0e357df7 https://git.kernel.org/stable/c/ef20d4e17d7fb0d83144caa9667e6f3198288993 https://git.kernel.org/stable/c/f33a96e49284589257e90ddc4394ec0c6bf11ec4 https://git.kernel.org/stable/c/f8e43fe0f22b7137ce456e6fe3581d3098174f74

Frequently Asked Questions

What is CVE-2026-89599? +

In the Linux kernel, the following vulnerability has been resolved: fbdev: omapfb: panel-dsi-cm: initialize lock before registering display dsicm_probe() registers the display before initializing ddata->lock. Once omapdss_register_display() publishes the display, another consumer can reach a dsicm callback that takes this mutex while it is still uninitialized. Initialize the mutex before registering the display so the published callbacks always see a valid lock. It has a CVSS v3.1 base score of 8.4 (HIGH).

How severe is CVE-2026-89599? +

CVE-2026-89599 has a CVSS v3.1 score of 8.4 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0014, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-89599? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

CVE-2026-89599