What’s Vulnerable › Vulnerabilities
CVE-2024-35942: pmdomain: imx8mp-blk-ctrl: imx8mp_blk: Add fdcc clock to hdmimix domain
- Severity: medium (CVSS 5.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2024-05-19 · updated 2026-10-30
Description
In the Linux kernel, the following vulnerability has been resolved: pmdomain: imx8mp-blk-ctrl: imx8mp_blk: Add fdcc clock to hdmimix domain According to i.MX8MP RM and HDMI ADD, the fdcc clock is part of hdmi rx verification IP that should not enable for HDMI TX. But actually if the clock is disabled before HDMI/LCDIF probe, LCDIF will not get pixel clock from HDMI PHY and print the error logs: [CRTC:39:crtc-2] vblank wait timed out WARNING: CPU: 2 PID: 9 at drivers/gpu/drm/drm_atomic_helper.c:1634 drm_atomic_helper_wait_for_vblanks.part.0+0x23c/0x260 Add fdcc clock to LCDIF and HDMI TX power domains to fix the issue.
Affected products
- Linux kernel: from 5.19 before 6.6.27; from 6.7 before 6.8.6 — fixed in 6.6.27, 6.8.6
- Linux: 5.19 — fixed in 6.9
How to fix
Upgrade to a fixed version: Linux kernel 6.6.27, 6.8.6; Linux 6.9. Check the vendor advisory for mitigations.
References
- https://git.kernel.org/stable/c/697624ee8ad557ab5417f985d2c804241a7ad30d
- https://git.kernel.org/stable/c/7c280b5fa64fe78a1a1d198b44a2d90bda36ed65
- https://git.kernel.org/stable/c/9d3f959b426635c4da50dfc7b1306afd84d23e7c
- https://git.kernel.org/stable/c/b13c0d871cd878ff53d25507ca535f59ed1f6a2a
- https://git.kernel.org/stable/c/697624ee8ad557ab5417f985d2c804241a7ad30d
- https://git.kernel.org/stable/c/9d3f959b426635c4da50dfc7b1306afd84d23e7c
- https://git.kernel.org/stable/c/b13c0d871cd878ff53d25507ca535f59ed1f6a2a
Get alerted when CVE-2024-35942 or the next vulnerability affects your stack