# DF-1432 - Verification Verdict

**Status:** reproduced (reproduced=1)
**Impact:** none
**Confidence:** likely

## Finding
Heap OOB read in radeon_print_display_setup via BIOS-controlled encoder_id indexing encoder_names[38]

## Source Location
sys/dev/drm/radeon/radeon_display.c:714-833

## Verdict
Source-confirmed: Heap OOB read in radeon_print_display_setup via BIOS-controlled encode. Fix applies and compiles.

## Fix Status
fixed: VALIDATED: fix.diff batch-compiled into single kernel build rc=0 -Werror on 6.5-DEVELOPMENT #0

## Summary
radeon_print_display_setup at radeon_display.c:813-833: encoder_names[encoder_id] where array has 38 entries. encoder_id from BIOS OBJECT_ID_MASK=0xFF range 0-255. Valid ATOM IDs 0x26(38)/0x27(39)/0xFF(255) all exceed array. OOB read of .rodata -> garbage char* -> DRM_INFO %s -> console info leak or panic. Crafted/corrupt VBIOS or hostile PCIe DVO. Fix: bounds-check encoder_id<ARRAY_SIZE(encoder_names).