Vulnerability-Lookup

GSD-2024-26728

Vulnerability from gsd - Updated: 2024-02-20 06:02

Details

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix null-pointer dereference on edid reading Use i2c adapter when there isn't aux_mode in dc_link to fix a null-pointer derefence that happens when running igt@kms_force_connector_basic in a system with DCN2.1 and HDMI connector detected as below: [ +0.178146] BUG: kernel NULL pointer dereference, address: 00000000000004c0 [ +0.000010] #PF: supervisor read access in kernel mode [ +0.000005] #PF: error_code(0x0000) - not-present page [ +0.000004] PGD 0 P4D 0 [ +0.000006] Oops: 0000 [#1] PREEMPT SMP NOPTI [ +0.000006] CPU: 15 PID: 2368 Comm: kms_force_conne Not tainted 6.5.0-asdn+ #152 [ +0.000005] Hardware name: HP HP ENVY x360 Convertible 13-ay1xxx/8929, BIOS F.01 07/14/2021 [ +0.000004] RIP: 0010:i2c_transfer+0xd/0x100 [ +0.000011] Code: ea fc ff ff 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 54 55 53 <48> 8b 47 10 48 89 fb 48 83 38 00 0f 84 b3 00 00 00 83 3d 2f 80 16 [ +0.000004] RSP: 0018:ffff9c4f89c0fad0 EFLAGS: 00010246 [ +0.000005] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000080 [ +0.000003] RDX: 0000000000000002 RSI: ffff9c4f89c0fb20 RDI: 00000000000004b0 [ +0.000003] RBP: ffff9c4f89c0fb80 R08: 0000000000000080 R09: ffff8d8e0b15b980 [ +0.000003] R10: 00000000000380e0 R11: 0000000000000000 R12: 0000000000000080 [ +0.000002] R13: 0000000000000002 R14: ffff9c4f89c0fb0e R15: ffff9c4f89c0fb0f [ +0.000004] FS: 00007f9ad2176c40(0000) GS:ffff8d90fe9c0000(0000) knlGS:0000000000000000 [ +0.000003] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ +0.000004] CR2: 00000000000004c0 CR3: 0000000121bc4000 CR4: 0000000000750ee0 [ +0.000003] PKRU: 55555554 [ +0.000003] Call Trace: [ +0.000006] <TASK> [ +0.000006] ? __die+0x23/0x70 [ +0.000011] ? page_fault_oops+0x17d/0x4c0 [ +0.000008] ? preempt_count_add+0x6e/0xa0 [ +0.000008] ? srso_alias_return_thunk+0x5/0x7f [ +0.000011] ? exc_page_fault+0x7f/0x180 [ +0.000009] ? asm_exc_page_fault+0x26/0x30 [ +0.000013] ? i2c_transfer+0xd/0x100 [ +0.000010] drm_do_probe_ddc_edid+0xc2/0x140 [drm] [ +0.000067] ? srso_alias_return_thunk+0x5/0x7f [ +0.000006] ? _drm_do_get_edid+0x97/0x3c0 [drm] [ +0.000043] ? __pfx_drm_do_probe_ddc_edid+0x10/0x10 [drm] [ +0.000042] edid_block_read+0x3b/0xd0 [drm] [ +0.000043] _drm_do_get_edid+0xb6/0x3c0 [drm] [ +0.000041] ? __pfx_drm_do_probe_ddc_edid+0x10/0x10 [drm] [ +0.000043] drm_edid_read_custom+0x37/0xd0 [drm] [ +0.000044] amdgpu_dm_connector_mode_valid+0x129/0x1d0 [amdgpu] [ +0.000153] drm_connector_mode_valid+0x3b/0x60 [drm_kms_helper] [ +0.000000] __drm_helper_update_and_validate+0xfe/0x3c0 [drm_kms_helper] [ +0.000000] ? amdgpu_dm_connector_get_modes+0xb6/0x520 [amdgpu] [ +0.000000] ? srso_alias_return_thunk+0x5/0x7f [ +0.000000] drm_helper_probe_single_connector_modes+0x2ab/0x540 [drm_kms_helper] [ +0.000000] status_store+0xb2/0x1f0 [drm] [ +0.000000] kernfs_fop_write_iter+0x136/0x1d0 [ +0.000000] vfs_write+0x24d/0x440 [ +0.000000] ksys_write+0x6f/0xf0 [ +0.000000] do_syscall_64+0x60/0xc0 [ +0.000000] ? srso_alias_return_thunk+0x5/0x7f [ +0.000000] ? syscall_exit_to_user_mode+0x2b/0x40 [ +0.000000] ? srso_alias_return_thunk+0x5/0x7f [ +0.000000] ? do_syscall_64+0x6c/0xc0 [ +0.000000] ? do_syscall_64+0x6c/0xc0 [ +0.000000] entry_SYSCALL_64_after_hwframe+0x6e/0xd8 [ +0.000000] RIP: 0033:0x7f9ad46b4b00 [ +0.000000] Code: 40 00 48 8b 15 19 b3 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d e1 3a 0e 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 [ +0.000000] RSP: 002b:00007ffcbd3bd6d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ +0.000000] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9ad46b4b00 [ +0.000000] RDX: 0000000000000002 RSI: 00007f9ad48a7417 RDI: 0000000000000009 [ +0.000000] RBP: 0000000000000002 R08 ---truncated---

Aliases

CVE-2024-26728

JSON

To clipboard

{
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2024-26728"
      ],
      "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix null-pointer dereference on edid reading\n\nUse i2c adapter when there isn\u0027t aux_mode in dc_link to fix a\nnull-pointer derefence that happens when running\nigt@kms_force_connector_basic in a system with DCN2.1 and HDMI connector\ndetected as below:\n\n[  +0.178146] BUG: kernel NULL pointer dereference, address: 00000000000004c0\n[  +0.000010] #PF: supervisor read access in kernel mode\n[  +0.000005] #PF: error_code(0x0000) - not-present page\n[  +0.000004] PGD 0 P4D 0\n[  +0.000006] Oops: 0000 [#1] PREEMPT SMP NOPTI\n[  +0.000006] CPU: 15 PID: 2368 Comm: kms_force_conne Not tainted 6.5.0-asdn+ #152\n[  +0.000005] Hardware name: HP HP ENVY x360 Convertible 13-ay1xxx/8929, BIOS F.01 07/14/2021\n[  +0.000004] RIP: 0010:i2c_transfer+0xd/0x100\n[  +0.000011] Code: ea fc ff ff 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 54 55 53 \u003c48\u003e 8b 47 10 48 89 fb 48 83 38 00 0f 84 b3 00 00 00 83 3d 2f 80 16\n[  +0.000004] RSP: 0018:ffff9c4f89c0fad0 EFLAGS: 00010246\n[  +0.000005] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000080\n[  +0.000003] RDX: 0000000000000002 RSI: ffff9c4f89c0fb20 RDI: 00000000000004b0\n[  +0.000003] RBP: ffff9c4f89c0fb80 R08: 0000000000000080 R09: ffff8d8e0b15b980\n[  +0.000003] R10: 00000000000380e0 R11: 0000000000000000 R12: 0000000000000080\n[  +0.000002] R13: 0000000000000002 R14: ffff9c4f89c0fb0e R15: ffff9c4f89c0fb0f\n[  +0.000004] FS:  00007f9ad2176c40(0000) GS:ffff8d90fe9c0000(0000) knlGS:0000000000000000\n[  +0.000003] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  +0.000004] CR2: 00000000000004c0 CR3: 0000000121bc4000 CR4: 0000000000750ee0\n[  +0.000003] PKRU: 55555554\n[  +0.000003] Call Trace:\n[  +0.000006]  \u003cTASK\u003e\n[  +0.000006]  ? __die+0x23/0x70\n[  +0.000011]  ? page_fault_oops+0x17d/0x4c0\n[  +0.000008]  ? preempt_count_add+0x6e/0xa0\n[  +0.000008]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000011]  ? exc_page_fault+0x7f/0x180\n[  +0.000009]  ? asm_exc_page_fault+0x26/0x30\n[  +0.000013]  ? i2c_transfer+0xd/0x100\n[  +0.000010]  drm_do_probe_ddc_edid+0xc2/0x140 [drm]\n[  +0.000067]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000006]  ? _drm_do_get_edid+0x97/0x3c0 [drm]\n[  +0.000043]  ? __pfx_drm_do_probe_ddc_edid+0x10/0x10 [drm]\n[  +0.000042]  edid_block_read+0x3b/0xd0 [drm]\n[  +0.000043]  _drm_do_get_edid+0xb6/0x3c0 [drm]\n[  +0.000041]  ? __pfx_drm_do_probe_ddc_edid+0x10/0x10 [drm]\n[  +0.000043]  drm_edid_read_custom+0x37/0xd0 [drm]\n[  +0.000044]  amdgpu_dm_connector_mode_valid+0x129/0x1d0 [amdgpu]\n[  +0.000153]  drm_connector_mode_valid+0x3b/0x60 [drm_kms_helper]\n[  +0.000000]  __drm_helper_update_and_validate+0xfe/0x3c0 [drm_kms_helper]\n[  +0.000000]  ? amdgpu_dm_connector_get_modes+0xb6/0x520 [amdgpu]\n[  +0.000000]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000000]  drm_helper_probe_single_connector_modes+0x2ab/0x540 [drm_kms_helper]\n[  +0.000000]  status_store+0xb2/0x1f0 [drm]\n[  +0.000000]  kernfs_fop_write_iter+0x136/0x1d0\n[  +0.000000]  vfs_write+0x24d/0x440\n[  +0.000000]  ksys_write+0x6f/0xf0\n[  +0.000000]  do_syscall_64+0x60/0xc0\n[  +0.000000]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000000]  ? syscall_exit_to_user_mode+0x2b/0x40\n[  +0.000000]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000000]  ? do_syscall_64+0x6c/0xc0\n[  +0.000000]  ? do_syscall_64+0x6c/0xc0\n[  +0.000000]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n[  +0.000000] RIP: 0033:0x7f9ad46b4b00\n[  +0.000000] Code: 40 00 48 8b 15 19 b3 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d e1 3a 0e 00 00 74 17 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89\n[  +0.000000] RSP: 002b:00007ffcbd3bd6d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001\n[  +0.000000] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9ad46b4b00\n[  +0.000000] RDX: 0000000000000002 RSI: 00007f9ad48a7417 RDI: 0000000000000009\n[  +0.000000] RBP: 0000000000000002 R08\n---truncated---",
      "id": "GSD-2024-26728",
      "modified": "2024-02-20T06:02:29.211821Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@kernel.org",
        "ID": "CVE-2024-26728",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Linux",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "0e859faf8670",
                          "version_value": "2d392f7268a1"
                        },
                        {
                          "version_value": "not down converted",
                          "x_cve_json_5_version_data": {
                            "defaultStatus": "affected",
                            "versions": [
                              {
                                "status": "affected",
                                "version": "6.7"
                              },
                              {
                                "lessThan": "6.7",
                                "status": "unaffected",
                                "version": "0",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "6.7.*",
                                "status": "unaffected",
                                "version": "6.7.7",
                                "versionType": "custom"
                              },
                              {
                                "lessThanOrEqual": "*",
                                "status": "unaffected",
                                "version": "6.8",
                                "versionType": "original_commit_for_fix"
                              }
                            ]
                          }
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Linux"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix null-pointer dereference on edid reading\n\nUse i2c adapter when there isn\u0027t aux_mode in dc_link to fix a\nnull-pointer derefence that happens when running\nigt@kms_force_connector_basic in a system with DCN2.1 and HDMI connector\ndetected as below:\n\n[  +0.178146] BUG: kernel NULL pointer dereference, address: 00000000000004c0\n[  +0.000010] #PF: supervisor read access in kernel mode\n[  +0.000005] #PF: error_code(0x0000) - not-present page\n[  +0.000004] PGD 0 P4D 0\n[  +0.000006] Oops: 0000 [#1] PREEMPT SMP NOPTI\n[  +0.000006] CPU: 15 PID: 2368 Comm: kms_force_conne Not tainted 6.5.0-asdn+ #152\n[  +0.000005] Hardware name: HP HP ENVY x360 Convertible 13-ay1xxx/8929, BIOS F.01 07/14/2021\n[  +0.000004] RIP: 0010:i2c_transfer+0xd/0x100\n[  +0.000011] Code: ea fc ff ff 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 54 55 53 \u003c48\u003e 8b 47 10 48 89 fb 48 83 38 00 0f 84 b3 00 00 00 83 3d 2f 80 16\n[  +0.000004] RSP: 0018:ffff9c4f89c0fad0 EFLAGS: 00010246\n[  +0.000005] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000080\n[  +0.000003] RDX: 0000000000000002 RSI: ffff9c4f89c0fb20 RDI: 00000000000004b0\n[  +0.000003] RBP: ffff9c4f89c0fb80 R08: 0000000000000080 R09: ffff8d8e0b15b980\n[  +0.000003] R10: 00000000000380e0 R11: 0000000000000000 R12: 0000000000000080\n[  +0.000002] R13: 0000000000000002 R14: ffff9c4f89c0fb0e R15: ffff9c4f89c0fb0f\n[  +0.000004] FS:  00007f9ad2176c40(0000) GS:ffff8d90fe9c0000(0000) knlGS:0000000000000000\n[  +0.000003] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  +0.000004] CR2: 00000000000004c0 CR3: 0000000121bc4000 CR4: 0000000000750ee0\n[  +0.000003] PKRU: 55555554\n[  +0.000003] Call Trace:\n[  +0.000006]  \u003cTASK\u003e\n[  +0.000006]  ? __die+0x23/0x70\n[  +0.000011]  ? page_fault_oops+0x17d/0x4c0\n[  +0.000008]  ? preempt_count_add+0x6e/0xa0\n[  +0.000008]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000011]  ? exc_page_fault+0x7f/0x180\n[  +0.000009]  ? asm_exc_page_fault+0x26/0x30\n[  +0.000013]  ? i2c_transfer+0xd/0x100\n[  +0.000010]  drm_do_probe_ddc_edid+0xc2/0x140 [drm]\n[  +0.000067]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000006]  ? _drm_do_get_edid+0x97/0x3c0 [drm]\n[  +0.000043]  ? __pfx_drm_do_probe_ddc_edid+0x10/0x10 [drm]\n[  +0.000042]  edid_block_read+0x3b/0xd0 [drm]\n[  +0.000043]  _drm_do_get_edid+0xb6/0x3c0 [drm]\n[  +0.000041]  ? __pfx_drm_do_probe_ddc_edid+0x10/0x10 [drm]\n[  +0.000043]  drm_edid_read_custom+0x37/0xd0 [drm]\n[  +0.000044]  amdgpu_dm_connector_mode_valid+0x129/0x1d0 [amdgpu]\n[  +0.000153]  drm_connector_mode_valid+0x3b/0x60 [drm_kms_helper]\n[  +0.000000]  __drm_helper_update_and_validate+0xfe/0x3c0 [drm_kms_helper]\n[  +0.000000]  ? amdgpu_dm_connector_get_modes+0xb6/0x520 [amdgpu]\n[  +0.000000]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000000]  drm_helper_probe_single_connector_modes+0x2ab/0x540 [drm_kms_helper]\n[  +0.000000]  status_store+0xb2/0x1f0 [drm]\n[  +0.000000]  kernfs_fop_write_iter+0x136/0x1d0\n[  +0.000000]  vfs_write+0x24d/0x440\n[  +0.000000]  ksys_write+0x6f/0xf0\n[  +0.000000]  do_syscall_64+0x60/0xc0\n[  +0.000000]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000000]  ? syscall_exit_to_user_mode+0x2b/0x40\n[  +0.000000]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000000]  ? do_syscall_64+0x6c/0xc0\n[  +0.000000]  ? do_syscall_64+0x6c/0xc0\n[  +0.000000]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n[  +0.000000] RIP: 0033:0x7f9ad46b4b00\n[  +0.000000] Code: 40 00 48 8b 15 19 b3 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d e1 3a 0e 00 00 74 17 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89\n[  +0.000000] RSP: 002b:00007ffcbd3bd6d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001\n[  +0.000000] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9ad46b4b00\n[  +0.000000] RDX: 0000000000000002 RSI: 00007f9ad48a7417 RDI: 0000000000000009\n[  +0.000000] RBP: 0000000000000002 R08\n---truncated---"
          }
        ]
      },
      "generator": {
        "engine": "bippy-d3b290d2becc"
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://git.kernel.org/stable/c/2d392f7268a1a9bfbd98c831f0f4c964e59aa145",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/2d392f7268a1a9bfbd98c831f0f4c964e59aa145"
          },
          {
            "name": "https://git.kernel.org/stable/c/9671761792156f2339627918bafcd713a8a6f777",
            "refsource": "MISC",
            "url": "https://git.kernel.org/stable/c/9671761792156f2339627918bafcd713a8a6f777"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix null-pointer dereference on edid reading\n\nUse i2c adapter when there isn\u0027t aux_mode in dc_link to fix a\nnull-pointer derefence that happens when running\nigt@kms_force_connector_basic in a system with DCN2.1 and HDMI connector\ndetected as below:\n\n[  +0.178146] BUG: kernel NULL pointer dereference, address: 00000000000004c0\n[  +0.000010] #PF: supervisor read access in kernel mode\n[  +0.000005] #PF: error_code(0x0000) - not-present page\n[  +0.000004] PGD 0 P4D 0\n[  +0.000006] Oops: 0000 [#1] PREEMPT SMP NOPTI\n[  +0.000006] CPU: 15 PID: 2368 Comm: kms_force_conne Not tainted 6.5.0-asdn+ #152\n[  +0.000005] Hardware name: HP HP ENVY x360 Convertible 13-ay1xxx/8929, BIOS F.01 07/14/2021\n[  +0.000004] RIP: 0010:i2c_transfer+0xd/0x100\n[  +0.000011] Code: ea fc ff ff 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 54 55 53 \u003c48\u003e 8b 47 10 48 89 fb 48 83 38 00 0f 84 b3 00 00 00 83 3d 2f 80 16\n[  +0.000004] RSP: 0018:ffff9c4f89c0fad0 EFLAGS: 00010246\n[  +0.000005] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000080\n[  +0.000003] RDX: 0000000000000002 RSI: ffff9c4f89c0fb20 RDI: 00000000000004b0\n[  +0.000003] RBP: ffff9c4f89c0fb80 R08: 0000000000000080 R09: ffff8d8e0b15b980\n[  +0.000003] R10: 00000000000380e0 R11: 0000000000000000 R12: 0000000000000080\n[  +0.000002] R13: 0000000000000002 R14: ffff9c4f89c0fb0e R15: ffff9c4f89c0fb0f\n[  +0.000004] FS:  00007f9ad2176c40(0000) GS:ffff8d90fe9c0000(0000) knlGS:0000000000000000\n[  +0.000003] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  +0.000004] CR2: 00000000000004c0 CR3: 0000000121bc4000 CR4: 0000000000750ee0\n[  +0.000003] PKRU: 55555554\n[  +0.000003] Call Trace:\n[  +0.000006]  \u003cTASK\u003e\n[  +0.000006]  ? __die+0x23/0x70\n[  +0.000011]  ? page_fault_oops+0x17d/0x4c0\n[  +0.000008]  ? preempt_count_add+0x6e/0xa0\n[  +0.000008]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000011]  ? exc_page_fault+0x7f/0x180\n[  +0.000009]  ? asm_exc_page_fault+0x26/0x30\n[  +0.000013]  ? i2c_transfer+0xd/0x100\n[  +0.000010]  drm_do_probe_ddc_edid+0xc2/0x140 [drm]\n[  +0.000067]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000006]  ? _drm_do_get_edid+0x97/0x3c0 [drm]\n[  +0.000043]  ? __pfx_drm_do_probe_ddc_edid+0x10/0x10 [drm]\n[  +0.000042]  edid_block_read+0x3b/0xd0 [drm]\n[  +0.000043]  _drm_do_get_edid+0xb6/0x3c0 [drm]\n[  +0.000041]  ? __pfx_drm_do_probe_ddc_edid+0x10/0x10 [drm]\n[  +0.000043]  drm_edid_read_custom+0x37/0xd0 [drm]\n[  +0.000044]  amdgpu_dm_connector_mode_valid+0x129/0x1d0 [amdgpu]\n[  +0.000153]  drm_connector_mode_valid+0x3b/0x60 [drm_kms_helper]\n[  +0.000000]  __drm_helper_update_and_validate+0xfe/0x3c0 [drm_kms_helper]\n[  +0.000000]  ? amdgpu_dm_connector_get_modes+0xb6/0x520 [amdgpu]\n[  +0.000000]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000000]  drm_helper_probe_single_connector_modes+0x2ab/0x540 [drm_kms_helper]\n[  +0.000000]  status_store+0xb2/0x1f0 [drm]\n[  +0.000000]  kernfs_fop_write_iter+0x136/0x1d0\n[  +0.000000]  vfs_write+0x24d/0x440\n[  +0.000000]  ksys_write+0x6f/0xf0\n[  +0.000000]  do_syscall_64+0x60/0xc0\n[  +0.000000]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000000]  ? syscall_exit_to_user_mode+0x2b/0x40\n[  +0.000000]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000000]  ? do_syscall_64+0x6c/0xc0\n[  +0.000000]  ? do_syscall_64+0x6c/0xc0\n[  +0.000000]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n[  +0.000000] RIP: 0033:0x7f9ad46b4b00\n[  +0.000000] Code: 40 00 48 8b 15 19 b3 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d e1 3a 0e 00 00 74 17 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89\n[  +0.000000] RSP: 002b:00007ffcbd3bd6d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001\n[  +0.000000] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9ad46b4b00\n[  +0.000000] RDX: 0000000000000002 RSI: 00007f9ad48a7417 RDI: 0000000000000009\n[  +0.000000] RBP: 0000000000000002 R08\n---truncated---"
          }
        ],
        "id": "CVE-2024-26728",
        "lastModified": "2024-04-03T17:24:18.150",
        "metrics": {},
        "published": "2024-04-03T17:15:50.763",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/2d392f7268a1a9bfbd98c831f0f4c964e59aa145"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/9671761792156f2339627918bafcd713a8a6f777"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Awaiting Analysis"
      }
    }
  }
}

CVE-2024-26728 (GCVE-0-2024-26728)

Vulnerability from cvelistv5 – Published: 2024-04-03 17:00 – Updated: 2026-08-05 11:26

Title

drm/amd/display: fix null-pointer dereference on edid reading

Summary

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 15:52 UTC

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/2d392f7268a1a9bfb…
https://git.kernel.org/stable/c/9671761792156f233…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0e859faf8670a78ce206977dcf1a31a0231e9ca5 , < 2d392f7268a1a9bfbd98c831f0f4c964e59aa145 (git) Affected: 0e859faf8670a78ce206977dcf1a31a0231e9ca5 , < 9671761792156f2339627918bafcd713a8a6f777 (git)
Linux	Linux	Affected: 6.7 Unaffected: 0 , < 6.7 (semver) Unaffected: 6.7.7 , ≤ 6.7.* (semver) Unaffected: 6.8 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T00:14:12.935Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/2d392f7268a1a9bfbd98c831f0f4c964e59aa145"
          },
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://git.kernel.org/stable/c/9671761792156f2339627918bafcd713a8a6f777"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-26728",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:52:07.138513Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-09-11T17:33:21.807Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2d392f7268a1a9bfbd98c831f0f4c964e59aa145",
              "status": "affected",
              "version": "0e859faf8670a78ce206977dcf1a31a0231e9ca5",
              "versionType": "git"
            },
            {
              "lessThan": "9671761792156f2339627918bafcd713a8a6f777",
              "status": "affected",
              "version": "0e859faf8670a78ce206977dcf1a31a0231e9ca5",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.7"
            },
            {
              "lessThan": "6.7",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.7.*",
              "status": "unaffected",
              "version": "6.7.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.8",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.7.7",
                  "versionStartIncluding": "6.7",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.8",
                  "versionStartIncluding": "6.7",
                  "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 null-pointer dereference on edid reading\n\nUse i2c adapter when there isn\u0027t aux_mode in dc_link to fix a\nnull-pointer derefence that happens when running\nigt@kms_force_connector_basic in a system with DCN2.1 and HDMI connector\ndetected as below:\n\n[  +0.178146] BUG: kernel NULL pointer dereference, address: 00000000000004c0\n[  +0.000010] #PF: supervisor read access in kernel mode\n[  +0.000005] #PF: error_code(0x0000) - not-present page\n[  +0.000004] PGD 0 P4D 0\n[  +0.000006] Oops: 0000 [#1] PREEMPT SMP NOPTI\n[  +0.000006] CPU: 15 PID: 2368 Comm: kms_force_conne Not tainted 6.5.0-asdn+ #152\n[  +0.000005] Hardware name: HP HP ENVY x360 Convertible 13-ay1xxx/8929, BIOS F.01 07/14/2021\n[  +0.000004] RIP: 0010:i2c_transfer+0xd/0x100\n[  +0.000011] Code: ea fc ff ff 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 41 54 55 53 \u003c48\u003e 8b 47 10 48 89 fb 48 83 38 00 0f 84 b3 00 00 00 83 3d 2f 80 16\n[  +0.000004] RSP: 0018:ffff9c4f89c0fad0 EFLAGS: 00010246\n[  +0.000005] RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000000080\n[  +0.000003] RDX: 0000000000000002 RSI: ffff9c4f89c0fb20 RDI: 00000000000004b0\n[  +0.000003] RBP: ffff9c4f89c0fb80 R08: 0000000000000080 R09: ffff8d8e0b15b980\n[  +0.000003] R10: 00000000000380e0 R11: 0000000000000000 R12: 0000000000000080\n[  +0.000002] R13: 0000000000000002 R14: ffff9c4f89c0fb0e R15: ffff9c4f89c0fb0f\n[  +0.000004] FS:  00007f9ad2176c40(0000) GS:ffff8d90fe9c0000(0000) knlGS:0000000000000000\n[  +0.000003] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  +0.000004] CR2: 00000000000004c0 CR3: 0000000121bc4000 CR4: 0000000000750ee0\n[  +0.000003] PKRU: 55555554\n[  +0.000003] Call Trace:\n[  +0.000006]  \u003cTASK\u003e\n[  +0.000006]  ? __die+0x23/0x70\n[  +0.000011]  ? page_fault_oops+0x17d/0x4c0\n[  +0.000008]  ? preempt_count_add+0x6e/0xa0\n[  +0.000008]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000011]  ? exc_page_fault+0x7f/0x180\n[  +0.000009]  ? asm_exc_page_fault+0x26/0x30\n[  +0.000013]  ? i2c_transfer+0xd/0x100\n[  +0.000010]  drm_do_probe_ddc_edid+0xc2/0x140 [drm]\n[  +0.000067]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000006]  ? _drm_do_get_edid+0x97/0x3c0 [drm]\n[  +0.000043]  ? __pfx_drm_do_probe_ddc_edid+0x10/0x10 [drm]\n[  +0.000042]  edid_block_read+0x3b/0xd0 [drm]\n[  +0.000043]  _drm_do_get_edid+0xb6/0x3c0 [drm]\n[  +0.000041]  ? __pfx_drm_do_probe_ddc_edid+0x10/0x10 [drm]\n[  +0.000043]  drm_edid_read_custom+0x37/0xd0 [drm]\n[  +0.000044]  amdgpu_dm_connector_mode_valid+0x129/0x1d0 [amdgpu]\n[  +0.000153]  drm_connector_mode_valid+0x3b/0x60 [drm_kms_helper]\n[  +0.000000]  __drm_helper_update_and_validate+0xfe/0x3c0 [drm_kms_helper]\n[  +0.000000]  ? amdgpu_dm_connector_get_modes+0xb6/0x520 [amdgpu]\n[  +0.000000]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000000]  drm_helper_probe_single_connector_modes+0x2ab/0x540 [drm_kms_helper]\n[  +0.000000]  status_store+0xb2/0x1f0 [drm]\n[  +0.000000]  kernfs_fop_write_iter+0x136/0x1d0\n[  +0.000000]  vfs_write+0x24d/0x440\n[  +0.000000]  ksys_write+0x6f/0xf0\n[  +0.000000]  do_syscall_64+0x60/0xc0\n[  +0.000000]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000000]  ? syscall_exit_to_user_mode+0x2b/0x40\n[  +0.000000]  ? srso_alias_return_thunk+0x5/0x7f\n[  +0.000000]  ? do_syscall_64+0x6c/0xc0\n[  +0.000000]  ? do_syscall_64+0x6c/0xc0\n[  +0.000000]  entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n[  +0.000000] RIP: 0033:0x7f9ad46b4b00\n[  +0.000000] Code: 40 00 48 8b 15 19 b3 0d 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d e1 3a 0e 00 00 74 17 b8 01 00 00 00 0f 05 \u003c48\u003e 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89\n[  +0.000000] RSP: 002b:00007ffcbd3bd6d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001\n[  +0.000000] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9ad46b4b00\n[  +0.000000] RDX: 0000000000000002 RSI: 00007f9ad48a7417 RDI: 0000000000000009\n[  +0.000000] RBP: 0000000000000002 R08\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 path is reached through local interfaces only \u2014 a write() to the DRM connector `status` sysfs attribute or a DRM_IOCTL_MODE_GETCONNECTOR forced probe on /dev/dri/cardN. No network or adjacent-network reachability exists.\nAC:L - The confused pointer is computed deterministically on every forced probe with no race, no timing window, and no dependence on memory layout the attacker cannot influence; the attacker simply repeats the probe.\nPR:L - On systems where the connector is forced at boot via the documented `video=\u003cconnector\u003e:e` parameter (routine for kiosk, digital-signage, automotive and industrial panels with no HPD), an unprivileged local user with /dev/dri access holding DRM master re-triggers `fill_modes()` \u2192 `.force()` and `mode_valid()` \u2192 `create_eml_sink()` with no elevated capability; the root sysfs write is only one of several ways the forced state gets established.\nUI:N - The attacker performs the triggering ioctl or sysfs write themselves; no victim action, mount, or file-open is required to reach the faulting code.\nS:U - The type confusion, the wild dereference, and the resulting crash or control-flow hijack all occur within the kernel\u0027s own security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The bogus `i2c_adapter *` points into the 2048-byte monitor-supplied `dc_edid.raw_edid` buffer, so `adap-\u003ealgo` at raw_edid+0x4c0 is display-controlled and is dereferenced by i2c_transfer(), giving an arbitrary kernel-address read; a successful transfer would additionally populate the EDID buffer from kernel memory.\nI:H - `__i2c_transfer()` invokes `adap-\u003ealgo-\u003emaster_xfer()` and `__i2c_lock_bus_helper()` invokes `adap-\u003elock_ops-\u003elock_bus()` through function pointers read from that attacker-influenced EDID data, yielding a control-flow hijack primitive leading to arbitrary kernel code execution.\nA:H - In the common case the code dereferences NULL+0x4b0 and oopses while holding `dev-\u003emode_config.mutex` and the modeset `connection_mutex`, so the entire DRM subsystem deadlocks afterwards and every subsequent DRM open/ioctl hangs unkillably."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:26:51.802Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2d392f7268a1a9bfbd98c831f0f4c964e59aa145"
        },
        {
          "url": "https://git.kernel.org/stable/c/9671761792156f2339627918bafcd713a8a6f777"
        }
      ],
      "title": "drm/amd/display: fix null-pointer dereference on edid reading",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-26728",
    "datePublished": "2024-04-03T17:00:16.776Z",
    "dateReserved": "2024-02-19T14:20:24.164Z",
    "dateUpdated": "2026-08-05T11:26:51.802Z",
    "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.

Detection rules are retrieved from Rulezet.

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.