Vulnerability-Lookup

FKIE_CVE-2025-37903

Vulnerability from fkie_nvd - Published: 2025-05-20 16:15 - Updated: 2026-07-30 06:22

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix slab-use-after-free in hdcp The HDCP code in amdgpu_dm_hdcp.c copies pointers to amdgpu_dm_connector objects without incrementing the kref reference counts. When using a USB-C dock, and the dock is unplugged, the corresponding amdgpu_dm_connector objects are freed, creating dangling pointers in the HDCP code. When the dock is plugged back, the dangling pointers are dereferenced, resulting in a slab-use-after-free: [ 66.775837] BUG: KASAN: slab-use-after-free in event_property_validate+0x42f/0x6c0 [amdgpu] [ 66.776171] Read of size 4 at addr ffff888127804120 by task kworker/0:1/10 [ 66.776179] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.14.0-rc7-00180-g54505f727a38-dirty #233 [ 66.776183] Hardware name: HP HP Pavilion Aero Laptop 13-be0xxx/8916, BIOS F.17 12/18/2024 [ 66.776186] Workqueue: events event_property_validate [amdgpu] [ 66.776494] Call Trace: [ 66.776496] <TASK> [ 66.776497] dump_stack_lvl+0x70/0xa0 [ 66.776504] print_report+0x175/0x555 [ 66.776507] ? __virt_addr_valid+0x243/0x450 [ 66.776510] ? kasan_complete_mode_report_info+0x66/0x1c0 [ 66.776515] kasan_report+0xeb/0x1c0 [ 66.776518] ? event_property_validate+0x42f/0x6c0 [amdgpu] [ 66.776819] ? event_property_validate+0x42f/0x6c0 [amdgpu] [ 66.777121] __asan_report_load4_noabort+0x14/0x20 [ 66.777124] event_property_validate+0x42f/0x6c0 [amdgpu] [ 66.777342] ? __lock_acquire+0x6b40/0x6b40 [ 66.777347] ? enable_assr+0x250/0x250 [amdgpu] [ 66.777571] process_one_work+0x86b/0x1510 [ 66.777575] ? pwq_dec_nr_in_flight+0xcf0/0xcf0 [ 66.777578] ? assign_work+0x16b/0x280 [ 66.777580] ? lock_is_held_type+0xa3/0x130 [ 66.777583] worker_thread+0x5c0/0xfa0 [ 66.777587] ? process_one_work+0x1510/0x1510 [ 66.777588] kthread+0x3a2/0x840 [ 66.777591] ? kthread_is_per_cpu+0xd0/0xd0 [ 66.777594] ? trace_hardirqs_on+0x4f/0x60 [ 66.777597] ? _raw_spin_unlock_irq+0x27/0x60 [ 66.777599] ? calculate_sigpending+0x77/0xa0 [ 66.777602] ? kthread_is_per_cpu+0xd0/0xd0 [ 66.777605] ret_from_fork+0x40/0x90 [ 66.777607] ? kthread_is_per_cpu+0xd0/0xd0 [ 66.777609] ret_from_fork_asm+0x11/0x20 [ 66.777614] </TASK> [ 66.777643] Allocated by task 10: [ 66.777646] kasan_save_stack+0x39/0x60 [ 66.777649] kasan_save_track+0x14/0x40 [ 66.777652] kasan_save_alloc_info+0x37/0x50 [ 66.777655] __kasan_kmalloc+0xbb/0xc0 [ 66.777658] __kmalloc_cache_noprof+0x1c8/0x4b0 [ 66.777661] dm_dp_add_mst_connector+0xdd/0x5c0 [amdgpu] [ 66.777880] drm_dp_mst_port_add_connector+0x47e/0x770 [drm_display_helper] [ 66.777892] drm_dp_send_link_address+0x1554/0x2bf0 [drm_display_helper] [ 66.777901] drm_dp_check_and_send_link_address+0x187/0x1f0 [drm_display_helper] [ 66.777909] drm_dp_mst_link_probe_work+0x2b8/0x410 [drm_display_helper] [ 66.777917] process_one_work+0x86b/0x1510 [ 66.777919] worker_thread+0x5c0/0xfa0 [ 66.777922] kthread+0x3a2/0x840 [ 66.777925] ret_from_fork+0x40/0x90 [ 66.777927] ret_from_fork_asm+0x11/0x20 [ 66.777932] Freed by task 1713: [ 66.777935] kasan_save_stack+0x39/0x60 [ 66.777938] kasan_save_track+0x14/0x40 [ 66.777940] kasan_save_free_info+0x3b/0x60 [ 66.777944] __kasan_slab_free+0x52/0x70 [ 66.777946] kfree+0x13f/0x4b0 [ 66.777949] dm_dp_mst_connector_destroy+0xfa/0x150 [amdgpu] [ 66.778179] drm_connector_free+0x7d/0xb0 [ 66.778184] drm_mode_object_put.part.0+0xee/0x160 [ 66.778188] drm_mode_object_put+0x37/0x50 [ 66.778191] drm_atomic_state_default_clear+0x220/0xd60 [ 66.778194] __drm_atomic_state_free+0x16e/0x2a0 [ 66.778197] drm_mode_atomic_ioctl+0x15ed/0x2ba0 [ 66.778200] drm_ioctl_kernel+0x17a/0x310 [ 66.778203] drm_ioctl+0x584/0xd10 [ 66.778206] amdgpu_drm_ioctl+0xd2/0x1c0 [amdgpu] [ 66.778375] __x64_sys_ioctl+0x139/0x1a0 [ 66.778378] x64_sys_call+0xee7/0xfb0 [ 66.778381] ---truncated---

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3a782a83d130ceac6c98a87639ddd89640bff486	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/bbc66abcd297be67e3d835276e21e6fdc65205a6	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/be593d9d91c5a3a363d456b9aceb71029aeb3f1d	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/dd329f04dda35a66e0c9ed462ba91bd5f2c8be70	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/e25139c4aa5621f2db8e86688c33546cdd885e42	Patch
af854a3a-2127-422b-91ae-364da2661108	https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html	Mailing List

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	6.15
linux	linux_kernel	6.15
linux	linux_kernel	6.15
linux	linux_kernel	6.15
debian	debian_linux	11.0

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e25139c4aa5621f2db8e86688c33546cdd885e42",
              "status": "affected",
              "version": "da3fd7ac0bcf372cc57117bdfcd725cca7ef975a",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "da3fd7ac0bcf372cc57117bdfcd725cca7ef975a",
              "versionType": "git"
            },
            {
              "lessThan": "dd329f04dda35a66e0c9ed462ba91bd5f2c8be70",
              "status": "affected",
              "version": "da3fd7ac0bcf372cc57117bdfcd725cca7ef975a",
              "versionType": "git"
            },
            {
              "lessThan": "3a782a83d130ceac6c98a87639ddd89640bff486",
              "status": "affected",
              "version": "da3fd7ac0bcf372cc57117bdfcd725cca7ef975a",
              "versionType": "git"
            },
            {
              "lessThan": "be593d9d91c5a3a363d456b9aceb71029aeb3f1d",
              "status": "affected",
              "version": "da3fd7ac0bcf372cc57117bdfcd725cca7ef975a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.5"
            },
            {
              "lessThan": "5.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.138",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.90",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.28",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "1EDCBFE8-17FA-423B-9F60-11633FF7E165",
              "versionEndExcluding": "6.1.138",
              "versionStartIncluding": "5.5",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "2BE1DB09-2D62-4C63-AF19-947300669741",
              "versionEndExcluding": "6.6.90",
              "versionStartIncluding": "6.2",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "5082CE19-0F3D-4521-AB3E-810D8255F500",
              "versionEndExcluding": "6.12.28",
              "versionStartIncluding": "6.7",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "19E5095E-5950-43EA-8E78-FC860855293F",
              "versionEndExcluding": "6.14.6",
              "versionStartIncluding": "6.13",
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            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "8D465631-2980-487A-8E65-40AE2B9F8ED1",
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            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "4C9D071F-B28E-46EC-AC61-22B913390211",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:*",
              "matchCriteriaId": "13FC0DDE-E513-465E-9E81-515702D49B74",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:*",
              "matchCriteriaId": "8C7B5B0E-4EEB-48F5-B4CF-0935A7633845",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED",
              "vulnerable": true
            }
          ],
          "negate": false,
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        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix slab-use-after-free in hdcp\n\nThe HDCP code in amdgpu_dm_hdcp.c copies pointers to amdgpu_dm_connector\nobjects without incrementing the kref reference counts. When using a\nUSB-C dock, and the dock is unplugged, the corresponding\namdgpu_dm_connector objects are freed, creating dangling pointers in the\nHDCP code. When the dock is plugged back, the dangling pointers are\ndereferenced, resulting in a slab-use-after-free:\n\n[   66.775837] BUG: KASAN: slab-use-after-free in event_property_validate+0x42f/0x6c0 [amdgpu]\n[   66.776171] Read of size 4 at addr ffff888127804120 by task kworker/0:1/10\n\n[   66.776179] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.14.0-rc7-00180-g54505f727a38-dirty #233\n[   66.776183] Hardware name: HP HP Pavilion Aero Laptop 13-be0xxx/8916, BIOS F.17 12/18/2024\n[   66.776186] Workqueue: events event_property_validate [amdgpu]\n[   66.776494] Call Trace:\n[   66.776496]  \u003cTASK\u003e\n[   66.776497]  dump_stack_lvl+0x70/0xa0\n[   66.776504]  print_report+0x175/0x555\n[   66.776507]  ? __virt_addr_valid+0x243/0x450\n[   66.776510]  ? kasan_complete_mode_report_info+0x66/0x1c0\n[   66.776515]  kasan_report+0xeb/0x1c0\n[   66.776518]  ? event_property_validate+0x42f/0x6c0 [amdgpu]\n[   66.776819]  ? event_property_validate+0x42f/0x6c0 [amdgpu]\n[   66.777121]  __asan_report_load4_noabort+0x14/0x20\n[   66.777124]  event_property_validate+0x42f/0x6c0 [amdgpu]\n[   66.777342]  ? __lock_acquire+0x6b40/0x6b40\n[   66.777347]  ? enable_assr+0x250/0x250 [amdgpu]\n[   66.777571]  process_one_work+0x86b/0x1510\n[   66.777575]  ? pwq_dec_nr_in_flight+0xcf0/0xcf0\n[   66.777578]  ? assign_work+0x16b/0x280\n[   66.777580]  ? lock_is_held_type+0xa3/0x130\n[   66.777583]  worker_thread+0x5c0/0xfa0\n[   66.777587]  ? process_one_work+0x1510/0x1510\n[   66.777588]  kthread+0x3a2/0x840\n[   66.777591]  ? kthread_is_per_cpu+0xd0/0xd0\n[   66.777594]  ? trace_hardirqs_on+0x4f/0x60\n[   66.777597]  ? _raw_spin_unlock_irq+0x27/0x60\n[   66.777599]  ? calculate_sigpending+0x77/0xa0\n[   66.777602]  ? kthread_is_per_cpu+0xd0/0xd0\n[   66.777605]  ret_from_fork+0x40/0x90\n[   66.777607]  ? kthread_is_per_cpu+0xd0/0xd0\n[   66.777609]  ret_from_fork_asm+0x11/0x20\n[   66.777614]  \u003c/TASK\u003e\n\n[   66.777643] Allocated by task 10:\n[   66.777646]  kasan_save_stack+0x39/0x60\n[   66.777649]  kasan_save_track+0x14/0x40\n[   66.777652]  kasan_save_alloc_info+0x37/0x50\n[   66.777655]  __kasan_kmalloc+0xbb/0xc0\n[   66.777658]  __kmalloc_cache_noprof+0x1c8/0x4b0\n[   66.777661]  dm_dp_add_mst_connector+0xdd/0x5c0 [amdgpu]\n[   66.777880]  drm_dp_mst_port_add_connector+0x47e/0x770 [drm_display_helper]\n[   66.777892]  drm_dp_send_link_address+0x1554/0x2bf0 [drm_display_helper]\n[   66.777901]  drm_dp_check_and_send_link_address+0x187/0x1f0 [drm_display_helper]\n[   66.777909]  drm_dp_mst_link_probe_work+0x2b8/0x410 [drm_display_helper]\n[   66.777917]  process_one_work+0x86b/0x1510\n[   66.777919]  worker_thread+0x5c0/0xfa0\n[   66.777922]  kthread+0x3a2/0x840\n[   66.777925]  ret_from_fork+0x40/0x90\n[   66.777927]  ret_from_fork_asm+0x11/0x20\n\n[   66.777932] Freed by task 1713:\n[   66.777935]  kasan_save_stack+0x39/0x60\n[   66.777938]  kasan_save_track+0x14/0x40\n[   66.777940]  kasan_save_free_info+0x3b/0x60\n[   66.777944]  __kasan_slab_free+0x52/0x70\n[   66.777946]  kfree+0x13f/0x4b0\n[   66.777949]  dm_dp_mst_connector_destroy+0xfa/0x150 [amdgpu]\n[   66.778179]  drm_connector_free+0x7d/0xb0\n[   66.778184]  drm_mode_object_put.part.0+0xee/0x160\n[   66.778188]  drm_mode_object_put+0x37/0x50\n[   66.778191]  drm_atomic_state_default_clear+0x220/0xd60\n[   66.778194]  __drm_atomic_state_free+0x16e/0x2a0\n[   66.778197]  drm_mode_atomic_ioctl+0x15ed/0x2ba0\n[   66.778200]  drm_ioctl_kernel+0x17a/0x310\n[   66.778203]  drm_ioctl+0x584/0xd10\n[   66.778206]  amdgpu_drm_ioctl+0xd2/0x1c0 [amdgpu]\n[   66.778375]  __x64_sys_ioctl+0x139/0x1a0\n[   66.778378]  x64_sys_call+0xee7/0xfb0\n[   66.778381] \n---truncated---"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: Se corrige el problema de slab-use-after-free en HDCP. El c\u00f3digo HDCP en amdgpu_dm_hdcp.c copia punteros a objetos amdgpu_dm_connector sin incrementar el recuento de referencias de kref. Al usar una base USB-C y desconectarla, se liberan los objetos amdgpu_dm_connector correspondientes, lo que crea punteros colgantes en el c\u00f3digo HDCP. Cuando se vuelve a conectar el dock, los punteros colgantes se desreferencian, lo que da como resultado un slab-use-after-free: [ 66.775837] ERROR: KASAN: slab-use-after-free en event_property_validate+0x42f/0x6c0 [amdgpu] [ 66.776171] Lectura de tama\u00f1o 4 en la direcci\u00f3n ffff888127804120 por la tarea kworker/0:1/10 [ 66.776179] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 No contaminado 6.14.0-rc7-00180-g54505f727a38-dirty #233 [ 66.776183] Nombre del hardware: HP HP Pavilion Aero Laptop 13-be0xxx/8916, BIOS F.17 18/12/2024 [ 66.776186] Cola de trabajo: eventos event_property_validate [amdgpu] [ 66.776494] Seguimiento de llamadas: [ 66.776496]   [ 66.776497] dump_stack_lvl+0x70/0xa0 [ 66.776504] print_report+0x175/0x555 [ 66.776507] ? __virt_addr_valid+0x243/0x450 [ 66.776510] ? kasan_complete_mode_report_info+0x66/0x1c0 [ 66.776515] kasan_report+0xeb/0x1c0 [ 66.776518] ? event_property_validate+0x42f/0x6c0 [amdgpu] [ 66.776819] ? event_property_validate+0x42f/0x6c0 [amdgpu] [ 66.777121] __asan_report_load4_noabort+0x14/0x20 [ 66.777124] event_property_validate+0x42f/0x6c0 [amdgpu] [ 66.777342] ? __lock_acquire+0x6b40/0x6b40 [ 66.777347] ? enable_assr+0x250/0x250 [amdgpu] [ 66.777571] process_one_work+0x86b/0x1510 [ 66.777575] ? pwq_dec_nr_in_flight+0xcf0/0xcf0 [ 66.777578] ? assign_work+0x16b/0x280 [ 66.777580] ? lock_is_held_type+0xa3/0x130 [ 66.777583] worker_thread+0x5c0/0xfa0 [ 66.777587] ? process_one_work+0x1510/0x1510 [ 66.777588] kthread+0x3a2/0x840 [ 66.777591] ? kthread_is_per_cpu+0xd0/0xd0 [ 66.777594] ? trace_hardirqs_on+0x4f/0x60 [ 66.777597] ? _raw_spin_unlock_irq+0x27/0x60 [ 66.777599] ? calculate_sigpending+0x77/0xa0 [ 66.777602] ? kthread_is_per_cpu+0xd0/0xd0 [ 66.777605] ret_from_fork+0x40/0x90 [ 66.777607] ? kthread_is_per_cpu+0xd0/0xd0 [ 66.777609] ret_from_fork_asm+0x11/0x20 [ 66.777614]  [ 66.777643] Asignado por la tarea 10: [ 66.777646] kasan_save_stack+0x39/0x60 [ 66.777649] kasan_save_track+0x14/0x40 [ 66.777652] kasan_save_alloc_info+0x37/0x50 [ 66.777655] __kasan_kmalloc+0xbb/0xc0 [ 66.777658] __kmalloc_cache_noprof+0x1c8/0x4b0 [ 66.777661] dm_dp_add_mst_connector+0xdd/0x5c0 [amdgpu] [ 66.777880] drm_dp_mst_port_add_connector+0x47e/0x770 [drm_display_helper] [ 66.777892] drm_dp_send_link_address+0x1554/0x2bf0 [drm_display_helper] [ 66.777901] drm_dp_check_and_send_link_address+0x187/0x1f0 [drm_display_helper] [ 66.777909] drm_dp_mst_link_probe_work+0x2b8/0x410 [drm_display_helper] [ 66.777917] process_one_work+0x86b/0x1510 [ 66.777919] work_thread+0x5c0/0xfa0 [ 66.777922] kthread+0x3a2/0x840 [ 66.777925] ret_from_fork+0x40/0x90 [ 66.777927] ret_from_fork_asm+0x11/0x20 [ 66.777932] Liberado por la tarea 1713: [ 66.777935] kasan_save_stack+0x39/0x60 [ 66.777938] kasan_save_track+0x14/0x40 [ 66.777940] kasan_save_free_info+0x3b/0x60 [ 66.777944] __kasan_slab_free+0x52/0x70 [ 66.777946] kfree+0x13f/0x4b0 [ 66.777949] dm_dp_mst_connector_destroy+0xfa/0x150 [amdgpu] [ 66.778179] drm_connector_free+0x7d/0xb0 [ 66.778184] drm_mode_object_put.part.0+0xee/0x160 [ 66.778188] drm_mode_object_put+0x37/0x50 [ 66.778191] drm_atomic_state_default_clear+0x220/0xd60 [ 66.778194] __drm_atomic_state_free+0x16e/0x2a0 [ 66.778197] drm_mode_atomic_ioctl+0x15ed/0x2ba0 [ 66.778200] drm_ioctl_kernel+0x17a/0x310 [ 66.778203] drm_ioctl+0x584/0xd10 [ 66.778206] amdgpu_drm_ioctl+0xd2/0x1c0 [amdgpu] [ 66.778375] __x64_sys_ioctl+0x139/0x1a0 [ 66.778378] x64_sys_call+0xee7/0xfb0 [ 66.778381] ---truncado---"
    }
  ],
  "id": "CVE-2025-37903",
  "lastModified": "2026-07-30T06:22:31.187",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-05-20T16:15:26.683",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/3a782a83d130ceac6c98a87639ddd89640bff486"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/bbc66abcd297be67e3d835276e21e6fdc65205a6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/be593d9d91c5a3a363d456b9aceb71029aeb3f1d"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/dd329f04dda35a66e0c9ed462ba91bd5f2c8be70"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/e25139c4aa5621f2db8e86688c33546cdd885e42"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List"
      ],
      "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2025-37903 (GCVE-0-2025-37903)

Vulnerability from cvelistv5 – Published: 2025-05-20 15:21 – Updated: 2026-08-05 11:58

Title

drm/amd/display: Fix slab-use-after-free in hdcp

Summary

Severity

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 6653 records in the last 180 days details

References

6 references

URL	Tags
https://git.kernel.org/stable/c/e25139c4aa5621f2d…
https://git.kernel.org/stable/c/bbc66abcd297be67e…
https://git.kernel.org/stable/c/dd329f04dda35a66e…
https://git.kernel.org/stable/c/3a782a83d130ceac6…
https://git.kernel.org/stable/c/be593d9d91c5a3a36…
https://lists.debian.org/debian-lts-announce/2025…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < e25139c4aa5621f2db8e86688c33546cdd885e42 (git) Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < bbc66abcd297be67e3d835276e21e6fdc65205a6 (git) Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < dd329f04dda35a66e0c9ed462ba91bd5f2c8be70 (git) Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < 3a782a83d130ceac6c98a87639ddd89640bff486 (git) Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < be593d9d91c5a3a363d456b9aceb71029aeb3f1d (git)
Linux	Linux	Affected: 5.5 Unaffected: 0 , < 5.5 (semver) Unaffected: 6.1.138 , ≤ 6.1.* (semver) Unaffected: 6.6.90 , ≤ 6.6.* (semver) Unaffected: 6.12.28 , ≤ 6.12.* (semver) Unaffected: 6.14.6 , ≤ 6.14.* (semver) Unaffected: 6.15 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T19:57:07.972Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "e25139c4aa5621f2db8e86688c33546cdd885e42",
              "status": "affected",
              "version": "da3fd7ac0bcf372cc57117bdfcd725cca7ef975a",
              "versionType": "git"
            },
            {
              "lessThan": "bbc66abcd297be67e3d835276e21e6fdc65205a6",
              "status": "affected",
              "version": "da3fd7ac0bcf372cc57117bdfcd725cca7ef975a",
              "versionType": "git"
            },
            {
              "lessThan": "dd329f04dda35a66e0c9ed462ba91bd5f2c8be70",
              "status": "affected",
              "version": "da3fd7ac0bcf372cc57117bdfcd725cca7ef975a",
              "versionType": "git"
            },
            {
              "lessThan": "3a782a83d130ceac6c98a87639ddd89640bff486",
              "status": "affected",
              "version": "da3fd7ac0bcf372cc57117bdfcd725cca7ef975a",
              "versionType": "git"
            },
            {
              "lessThan": "be593d9d91c5a3a363d456b9aceb71029aeb3f1d",
              "status": "affected",
              "version": "da3fd7ac0bcf372cc57117bdfcd725cca7ef975a",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_hdcp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.5"
            },
            {
              "lessThan": "5.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.138",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.90",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.28",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.138",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.90",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.28",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.6",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix slab-use-after-free in hdcp\n\nThe HDCP code in amdgpu_dm_hdcp.c copies pointers to amdgpu_dm_connector\nobjects without incrementing the kref reference counts. When using a\nUSB-C dock, and the dock is unplugged, the corresponding\namdgpu_dm_connector objects are freed, creating dangling pointers in the\nHDCP code. When the dock is plugged back, the dangling pointers are\ndereferenced, resulting in a slab-use-after-free:\n\n[   66.775837] BUG: KASAN: slab-use-after-free in event_property_validate+0x42f/0x6c0 [amdgpu]\n[   66.776171] Read of size 4 at addr ffff888127804120 by task kworker/0:1/10\n\n[   66.776179] CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Not tainted 6.14.0-rc7-00180-g54505f727a38-dirty #233\n[   66.776183] Hardware name: HP HP Pavilion Aero Laptop 13-be0xxx/8916, BIOS F.17 12/18/2024\n[   66.776186] Workqueue: events event_property_validate [amdgpu]\n[   66.776494] Call Trace:\n[   66.776496]  \u003cTASK\u003e\n[   66.776497]  dump_stack_lvl+0x70/0xa0\n[   66.776504]  print_report+0x175/0x555\n[   66.776507]  ? __virt_addr_valid+0x243/0x450\n[   66.776510]  ? kasan_complete_mode_report_info+0x66/0x1c0\n[   66.776515]  kasan_report+0xeb/0x1c0\n[   66.776518]  ? event_property_validate+0x42f/0x6c0 [amdgpu]\n[   66.776819]  ? event_property_validate+0x42f/0x6c0 [amdgpu]\n[   66.777121]  __asan_report_load4_noabort+0x14/0x20\n[   66.777124]  event_property_validate+0x42f/0x6c0 [amdgpu]\n[   66.777342]  ? __lock_acquire+0x6b40/0x6b40\n[   66.777347]  ? enable_assr+0x250/0x250 [amdgpu]\n[   66.777571]  process_one_work+0x86b/0x1510\n[   66.777575]  ? pwq_dec_nr_in_flight+0xcf0/0xcf0\n[   66.777578]  ? assign_work+0x16b/0x280\n[   66.777580]  ? lock_is_held_type+0xa3/0x130\n[   66.777583]  worker_thread+0x5c0/0xfa0\n[   66.777587]  ? process_one_work+0x1510/0x1510\n[   66.777588]  kthread+0x3a2/0x840\n[   66.777591]  ? kthread_is_per_cpu+0xd0/0xd0\n[   66.777594]  ? trace_hardirqs_on+0x4f/0x60\n[   66.777597]  ? _raw_spin_unlock_irq+0x27/0x60\n[   66.777599]  ? calculate_sigpending+0x77/0xa0\n[   66.777602]  ? kthread_is_per_cpu+0xd0/0xd0\n[   66.777605]  ret_from_fork+0x40/0x90\n[   66.777607]  ? kthread_is_per_cpu+0xd0/0xd0\n[   66.777609]  ret_from_fork_asm+0x11/0x20\n[   66.777614]  \u003c/TASK\u003e\n\n[   66.777643] Allocated by task 10:\n[   66.777646]  kasan_save_stack+0x39/0x60\n[   66.777649]  kasan_save_track+0x14/0x40\n[   66.777652]  kasan_save_alloc_info+0x37/0x50\n[   66.777655]  __kasan_kmalloc+0xbb/0xc0\n[   66.777658]  __kmalloc_cache_noprof+0x1c8/0x4b0\n[   66.777661]  dm_dp_add_mst_connector+0xdd/0x5c0 [amdgpu]\n[   66.777880]  drm_dp_mst_port_add_connector+0x47e/0x770 [drm_display_helper]\n[   66.777892]  drm_dp_send_link_address+0x1554/0x2bf0 [drm_display_helper]\n[   66.777901]  drm_dp_check_and_send_link_address+0x187/0x1f0 [drm_display_helper]\n[   66.777909]  drm_dp_mst_link_probe_work+0x2b8/0x410 [drm_display_helper]\n[   66.777917]  process_one_work+0x86b/0x1510\n[   66.777919]  worker_thread+0x5c0/0xfa0\n[   66.777922]  kthread+0x3a2/0x840\n[   66.777925]  ret_from_fork+0x40/0x90\n[   66.777927]  ret_from_fork_asm+0x11/0x20\n\n[   66.777932] Freed by task 1713:\n[   66.777935]  kasan_save_stack+0x39/0x60\n[   66.777938]  kasan_save_track+0x14/0x40\n[   66.777940]  kasan_save_free_info+0x3b/0x60\n[   66.777944]  __kasan_slab_free+0x52/0x70\n[   66.777946]  kfree+0x13f/0x4b0\n[   66.777949]  dm_dp_mst_connector_destroy+0xfa/0x150 [amdgpu]\n[   66.778179]  drm_connector_free+0x7d/0xb0\n[   66.778184]  drm_mode_object_put.part.0+0xee/0x160\n[   66.778188]  drm_mode_object_put+0x37/0x50\n[   66.778191]  drm_atomic_state_default_clear+0x220/0xd60\n[   66.778194]  __drm_atomic_state_free+0x16e/0x2a0\n[   66.778197]  drm_mode_atomic_ioctl+0x15ed/0x2ba0\n[   66.778200]  drm_ioctl_kernel+0x17a/0x310\n[   66.778203]  drm_ioctl+0x584/0xd10\n[   66.778206]  amdgpu_drm_ioctl+0xd2/0x1c0 [amdgpu]\n[   66.778375]  __x64_sys_ioctl+0x139/0x1a0\n[   66.778378]  x64_sys_call+0xee7/0xfb0\n[   66.778381] \n---truncated---"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The vulnerable code is in the amdgpu DRM/KMS display driver, reachable only through local interfaces \u2014 DRM atomic ioctls on /dev/dri/cardN plus driver workqueues \u2014 with no network exposure. The dangling pointer is both created (stream disable via atomic commit) and freed (`drm_mode_atomic_ioctl` dropping the last connector reference) by local userspace, and exploiting the freed slab requires local code execution to spray it.\nAC:L - No race must be won: the stale pointer persists in `hdcp_w-\u003eaconnector[]` indefinitely and is dereferenced by the periodically re-scheduled `property_validate_dwork`, so the attacker controls both the free (atomic ioctl) and the subsequent trigger, and the reporter reproduced it deterministically with a dock cycle. The affected code is enabled by default on all Raven-and-later AMD GPUs with no special Kconfig, and HDCP need not even be requested since `hdcp_remove_display()` stores the stale pointer on any MST stream disable.\nPR:L - No capability, DRM-master, or HDCP privilege check exists on the path \u2014 the stale pointer is stored and dereferenced by the driver\u0027s own commit path and kernel workers during ordinary display topology changes, so an unprivileged local account is sufficient to be in a position to groom the freed slab and profit from the dereference.\nUI:N - The stale pointer is created by the driver\u0027s normal stream-disable path and dereferenced by a kernel workqueue that the driver itself schedules; no action by another user or victim application is needed.\nS:U - The use-after-free corrupts kernel heap memory and is exploited entirely within the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed `struct amdgpu_dm_connector` is re-read after being returned to a general kmalloc cache, and `event_property_update()` follows pointers taken from that freed object (`connector-\u003edev`, `conn_state`, `conn_state-\u003ecommit`), letting an attacker who reallocates the slab steer kernel reads to arbitrary addresses and disclose kernel memory.\nI:H - `drm_hdcp_update_content_protection()` writes `state-\u003econtent_protection = val` through a pointer read out of the freed object, and `drm_modeset_lock()` operates on an equally attacker-influenced address, giving a controlled-pointer write primitive on top of the freed-object corruption \u2014 sufficient for control-flow hijacking.\nA:H - This is a KASAN-confirmed slab-use-after-free that dereferences freed memory from a kernel worker thread, reliably producing an oops/panic and taking down the graphics stack or the whole system."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:58:12.242Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e25139c4aa5621f2db8e86688c33546cdd885e42"
        },
        {
          "url": "https://git.kernel.org/stable/c/bbc66abcd297be67e3d835276e21e6fdc65205a6"
        },
        {
          "url": "https://git.kernel.org/stable/c/dd329f04dda35a66e0c9ed462ba91bd5f2c8be70"
        },
        {
          "url": "https://git.kernel.org/stable/c/3a782a83d130ceac6c98a87639ddd89640bff486"
        },
        {
          "url": "https://git.kernel.org/stable/c/be593d9d91c5a3a363d456b9aceb71029aeb3f1d"
        }
      ],
      "title": "drm/amd/display: Fix slab-use-after-free in hdcp",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-37903",
    "datePublished": "2025-05-20T15:21:37.400Z",
    "dateReserved": "2025-04-16T04:51:23.965Z",
    "dateUpdated": "2026-08-05T11:58:12.242Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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