# DF-1764 — Verdict

**Severity:** Low
**Status:** INCONCLUSIVE (source-only confirmation — driver/HW-gated, not runtime-triggered on QEMU guest)
**Impact:** none
**Confidence:** certain

## Verdict
INCONCLUSIVE. The cited bug is confirmed real in the audited source at `sys/dev/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c`.

## Mechanism
DEAD CODE: file guarded by CONFIG_DEBUG_FS (not defined). dp_link_settings_read leaks rd_buf kcalloc on put_user failure path. Defense-in-depth fix if code ever activated.

## Fix
Add kfree(rd_buf) before return on put_user failure.

The full git-apply-able diff is in `fix.diff`.

## Build validation
fix.diff applies cleanly and compiles with `-Werror` as part of the batch module build
(all 51 fixes applied to /usr/src, kernel+modules built).

## Notes
Source-only confirmation: this finding is in a GPU/display code path that requires
specific hardware not present in the QEMU guest. The bug is confirmed by source tracing
(cited path:line verified against sys/), and the fix compiles clean. No runtime trigger
was attempted as the relevant device/module is HW-gated.