---
id: CVE-2026-93194
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/rockchip: dw_dp: Release core resources

  Core resources such as the DisplayPort AUX channel get initialized and
  registered during dw_dp_bind(), but are never unregi…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  drm/rockchip: dw_dp: Release core resources

  Core resources such as the DisplayPort AUX channel get initialized and
  registered during dw_dp_bind(), but are never unregi…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= d68ba7bac9555d05e2f5b310c898b2a5c7eff174 <
    362e005b816ee8052a195b98d845966689b398a1
  - >-
    Linux >= d68ba7bac9555d05e2f5b310c898b2a5c7eff174 <
    11f07929f454ecc2c5d0da3a4727fd205be43e49
  - >-
    Linux >= d68ba7bac9555d05e2f5b310c898b2a5c7eff174 <
    cc6d7aca2f37a1525a94ef97eb3ce361732c876c
  - Linux 6.18
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:18:15.660'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-93194'
references:
  - url: 'https://git.kernel.org/stable/c/11f07929f454ecc2c5d0da3a4727fd205be43e49'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/362e005b816ee8052a195b98d845966689b398a1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/cc6d7aca2f37a1525a94ef97eb3ce361732c876c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.723Z'
epss: 0.00206
epssPercentile: 0.09513
---

## Overview

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

drm/rockchip: dw_dp: Release core resources

Core resources such as the DisplayPort AUX channel get initialized and
registered during dw_dp_bind(), but are never unregistered, which may
lead to memory leaks and/or use-after-free:

[  224.661371] BUG: KASAN: slab-use-after-free in device_is_dependent+0xe0/0x2b0
[  224.662015] Read of size 8 at addr ffff00011aee8550 by task modprobe/658
[  224.662612]
[  224.662752] CPU: 7 UID: 0 PID: 658 Comm: modprobe Not tainted 7.0.0-rc2-next-20260305 #14 PREEMPT
[  224.662759] Hardware name: Radxa ROCK 5B (DT)
[  224.662762] Call trace:
[  224.662764]  show_stack+0x20/0x38 (C)
[  224.662772]  dump_stack_lvl+0x6c/0x98
[  224.662777]  print_report+0x160/0x4b8
[  224.662783]  kasan_report+0xb4/0xe0
[  224.662790]  __asan_report_load8_noabort+0x20/0x30
[  224.662796]  device_is_dependent+0xe0/0x2b0
[  224.662802]  device_is_dependent+0x108/0x2b0
[  224.662808]  device_link_add+0x1f8/0x10b0
[  224.662813]  devm_of_phy_get_by_index+0x120/0x200
[  224.662819]  dw_dp_bind+0x34c/0xb10 [dw_dp]
[  224.662830]  dw_dp_rockchip_bind+0x194/0x250 [rockchipdrm]
[  224.662864]  component_bind_all+0x3a8/0x720
[  224.662869]  rockchip_drm_bind+0x120/0x390 [rockchipdrm]
[  224.662899]  try_to_bring_up_aggregate_device+0x76c/0x838
[  224.662904]  component_master_add_with_match+0x1f4/0x230
[  224.662909]  rockchip_drm_platform_probe+0x420/0x538 [rockchipdrm]
[  224.662939]  platform_probe+0xe8/0x168
[  224.662945]  really_probe+0x340/0x828
[  224.662950]  __driver_probe_device+0x2e0/0x350
[  224.662954]  driver_probe_device+0x80/0x140
[  224.662959]  __driver_attach+0x398/0x460
[  224.662964]  bus_for_each_dev+0xe0/0x198
[  224.662968]  driver_attach+0x50/0x68
[  224.662972]  bus_add_driver+0x2a0/0x4c0
[  224.662977]  driver_register+0x294/0x360
[  224.662982]  __platform_driver_register+0x7c/0x98
[  224.662987]  rockchip_drm_init+0xc4/0xff8 [rockchipdrm]

Since a previous commit exported dw_dp_unbind() function in DW DP core
library to take care of the necessary cleanup, use this in the
component's unbind() callback, as well as in its bind() error path.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.