CVE-2024-56683

Summary

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

drm/vc4: hdmi: Avoid hang with debug registers when suspended

Trying to read /sys/kernel/debug/dri/1/hdmi1_regs when the hdmi is disconnected results in a fatal system hang.

This is due to the pm suspend code disabling the dvp clock. That is just a gate of the 108MHz clock in DVP_HT_RPI_MISC_CONFIG, which results in accesses hanging AXI bus.

Protect against this.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux25eb441d55d479581a65bcc9de88bc1d86bf76c1 < 0ea29bd7d9400d3629683244d609358ed1b12075affected
LinuxLinux25eb441d55d479581a65bcc9de88bc1d86bf76c1 < c7d474974954d9af7e0092021223d58f2de128dfaffected
LinuxLinux25eb441d55d479581a65bcc9de88bc1d86bf76c1 < 16f351adf733a182224ad24916d7673aa6df02dfaffected
LinuxLinux25eb441d55d479581a65bcc9de88bc1d86bf76c1 < 74f21be9990a42dc2357bcf87a13e16c6998b90eaffected
LinuxLinux25eb441d55d479581a65bcc9de88bc1d86bf76c1 < 223ee2567a55e4f80315c768d2969e6a3b9fb23daffected
LinuxLinux1da00a63f0e798f0fd0dcf623b16c16e13f93615affected
LinuxLinuxf70c25cf34f91cc6f40e79a5b7565fd0272d7396affected
LinuxLinux5.18.18 < 5.19affected
LinuxLinux5.19.2 < 5.20affected
LinuxLinux6.0affected
LinuxLinux0 < 6.0unaffected
LinuxLinux6.1.120 <= 6.1.*unaffected
LinuxLinux6.6.64 <= 6.6.*unaffected
LinuxLinux6.11.11 <= 6.11.*unaffected
LinuxLinux6.12.2 <= 6.12.*unaffected
LinuxLinux6.13 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

References