CVE-2026-68280

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

drm/bridge: cdns-dsi: Replace deprecated UNIVERSALDEVPM_OPS()

The deprecated UNIVERSALDEVPM_OPS() macro uses the provided callbacks for both runtime PM and system sleep. This causes the DSI clocks to be disabled twice: once during runtime suspend and again during system suspend, resulting in a WARN message from the clock framework when attempting to disable already-disabled clocks.

[ 84.384540] clk:231:5 already disabled [ 84.388314] WARNING: CPU: 2 PID: 531 at /drivers/clk/clk.c:1181 clkcoredisable+0xa4/0xac ... [ 84.579183] Call trace: [ 84.581624] clkcoredisable+0xa4/0xac [ 84.585457] clkdisable+0x30/0x4c [ 84.588857] cdnsdsisuspend+0x20/0x58 [cdnsdsi] [ 84.593651] pmgenericsuspend+0x2c/0x44 [ 84.597661] tiscipdsuspend+0xbc/0x15c [ 84.601670] dpmrun_callback+0x8c/0x14c [ 84.605588] __devicesuspend+0x1a0/0x56c [ 84.609594] dpmsuspend+0x17c/0x21c [ 84.613165] dpmsuspendstart+0xa0/0xa8 [ 84.617083] suspenddevicesandenter+0x12c/0x634 [ 84.621872] pmsuspend+0x1fc/0x368

To address this issue, replace UNIVERSALDEVPMOPS() with RUNTIMEPM_OPS(). Bridge and panel drivers should only deal with runtime PM, as the DRM framework manages system-wide power transitions through the bridge enable() and disable() hooks.