GCVE Workshop - 22 September 2026 (14:00-18:00), Luxembourg Before The Vulnopticon Conference - Registration

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

Vulnerability from cvelistv5 – Published: 2025-05-20 15:21 – Updated: 2026-08-05 11:58
VLAI
Title
drm/amd/display: Fix slab-use-after-free in hdcp
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---
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < e25139c4aa5621f2db8e86688c33546cdd885e42 (git)
Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < bbc66abcd297be67e3d835276e21e6fdc65205a6 (git)
Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < dd329f04dda35a66e0c9ed462ba91bd5f2c8be70 (git)
Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < 3a782a83d130ceac6c98a87639ddd89640bff486 (git)
Affected: da3fd7ac0bcf372cc57117bdfcd725cca7ef975a , < be593d9d91c5a3a363d456b9aceb71029aeb3f1d (git)
guessed Create a notification for this product.
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)
guessed Create a notification for this product.
Show details on NVD website
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",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-37903",
      "date": "2026-09-17",
      "epss": "0.00193",
      "percentile": "0.09213"
    },
    "microsoft_vex": {
      "current_release_date": "2026-08-11T01:43:15.000Z",
      "cve": "CVE-2025-37903",
      "id": "msrc_CVE-2025-37903",
      "initial_release_date": "2025-07-11T00:00:00.000Z",
      "product_status:fixed": "2",
      "product_status:known_affected": "6",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "drm/amd/display: Fix slab-use-after-free in hdcp",
      "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-37903.json",
      "version": "6"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-37903\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-20T16:15:26.683\",\"lastModified\":\"2026-07-30T06:22:31.187\",\"vulnStatus\":\"Modified\",\"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---\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"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\",\"versions\":[{\"version\":\"da3fd7ac0bcf372cc57117bdfcd725cca7ef975a\",\"lessThan\":\"e25139c4aa5621f2db8e86688c33546cdd885e42\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"da3fd7ac0bcf372cc57117bdfcd725cca7ef975a\",\"lessThan\":\"bbc66abcd297be67e3d835276e21e6fdc65205a6\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"da3fd7ac0bcf372cc57117bdfcd725cca7ef975a\",\"lessThan\":\"dd329f04dda35a66e0c9ed462ba91bd5f2c8be70\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"da3fd7ac0bcf372cc57117bdfcd725cca7ef975a\",\"lessThan\":\"3a782a83d130ceac6c98a87639ddd89640bff486\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"da3fd7ac0bcf372cc57117bdfcd725cca7ef975a\",\"lessThan\":\"be593d9d91c5a3a363d456b9aceb71029aeb3f1d\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"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\",\"versions\":[{\"version\":\"5.5\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.5\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.138\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.90\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.28\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.14.6\",\"lessThanOrEqual\":\"6.14.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.15\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"6.1.138\",\"matchCriteriaId\":\"1EDCBFE8-17FA-423B-9F60-11633FF7E165\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.90\",\"matchCriteriaId\":\"2BE1DB09-2D62-4C63-AF19-947300669741\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.28\",\"matchCriteriaId\":\"5082CE19-0F3D-4521-AB3E-810D8255F500\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.14.6\",\"matchCriteriaId\":\"19E5095E-5950-43EA-8E78-FC860855293F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"8D465631-2980-487A-8E65-40AE2B9F8ED1\"},{\"vulnerable\":true,\"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\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FA6FEEC2-9F11-4643-8827-749718254FED\"}]}]}],\"references\":[{\"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\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:33:05+00:00",
      "cve": "CVE-2025-37903",
      "id": "CVE-2025-37903",
      "initial_release_date": "2025-05-20T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: drm/amd/display: Fix slab-use-after-free in hdcp",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-37903.json",
      "version": "3"
    }
  }
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.


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.