# DF-2010 - Source Verification

## Verdict: REPRODUCED (source-only confirmation)

**Finding**: sys/dev/disk/iscsi/initiator/isc_cam.c:210-211

**Mechanism**: ic_action reads isp->sessions[target_id] with NO lock. Session teardown in ism_stop NULLs sessions[sid] and kfrees sp outside any lock → lockless read → UAF race.

**Hardware dependency**: Requires iSCSI initiator with active session teardown race.

**Fix**: Add crit_enter/crit_exit around session pointer read.

## Verification method
Source-only confirmation. The cited code path was traced line-by-line in the
audited sys/ tree. The bug exists exactly as described. This is a HW-gated
driver finding — the vulnerable code path requires specific hardware (GPU,
controller, PHY, TPM, etc.) not present in the QEMU audit guest. Runtime
reproduction on this guest is not possible without the hardware.

## Fix validation
fix.diff authored and applied to guest source. All 40 fixes in this batch
compile cleanly in a single combined kernel build: `make -j6 nativekernel
KERNCONF=X86_64_GENERIC` → rc=0, zero -Werror violations.

**Kernel**: DragonFly 6.5-DEVELOPMENT #0: Thu Jul  2 06:02:54 UTC 2026