fbdev: omapfb: panel-dsi-cm: initialize lock before registering display
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.109, 6.18.50, 7.2.4, 7.3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 5 | Affected | No fix yet: Fix deferred |
Not affected: 6 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-89599
- 2026-10-03 Alias added: GHSA-vq32-rv69-wv5x
- 2026-10-19 Fix available: Linux/[email protected] · CNA
- 2026-11-06 Affected versions changed · Red Hat
References
Other 8
- https://git.kernel.org/stable/c/ef20d4e17d7fb0d83144caa9667e6f3198288993
- https://git.kernel.org/stable/c/e7023d18c4eb292f886b31a3576402cb0e357df7
- https://git.kernel.org/stable/c/f33a96e49284589257e90ddc4394ec0c6bf11ec4
- https://git.kernel.org/stable/c/302d19fbc7dc7e9f498930c66d65ff711ba5ba9f
- https://git.kernel.org/stable/c/2c3f8c9c995db185284b079f39177e85b2258176
- https://git.kernel.org/stable/c/76818e81cfcae33b09b739de09162c7d8d89bf0b
- https://git.kernel.org/stable/c/09db79078f25c048cfb5d7849795c70415ab8574
- https://git.kernel.org/stable/c/f8e43fe0f22b7137ce456e6fe3581d3098174f74
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Sources
- CVE-2026-89599 · CVE Program
- CVE-2026-89599 · NVD
- FIRST EPSS
- GHSA-vq32-rv69-wv5x · GitHub Advisory Database · CC BY 4.0
- CVE-2026-89599 · Red Hat security data · CC BY 4.0
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