CVE-2025-22093 (GCVE-0-2025-22093)
Vulnerability from cvelistv5
Published
2025-04-16 14:12
Modified
2025-05-26 05:18
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: avoid NPD when ASIC does not support DMUB ctx->dmub_srv will de NULL if the ASIC does not support DMUB, which is tested in dm_dmub_sw_init. However, it will be dereferenced in dmub_hw_lock_mgr_cmd if should_use_dmub_lock returns true. This has been the case since dmub support has been added for PSR1. Fix this by checking for dmub_srv in should_use_dmub_lock. [ 37.440832] BUG: kernel NULL pointer dereference, address: 0000000000000058 [ 37.447808] #PF: supervisor read access in kernel mode [ 37.452959] #PF: error_code(0x0000) - not-present page [ 37.458112] PGD 0 P4D 0 [ 37.460662] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI [ 37.465553] CPU: 2 UID: 1000 PID: 1745 Comm: DrmThread Not tainted 6.14.0-rc1-00003-gd62e938120f0 #23 99720e1cb1e0fc4773b8513150932a07de3c6e88 [ 37.478324] Hardware name: Google Morphius/Morphius, BIOS Google_Morphius.13434.858.0 10/26/2023 [ 37.487103] RIP: 0010:dmub_hw_lock_mgr_cmd+0x77/0xb0 [ 37.492074] Code: 44 24 0e 00 00 00 00 48 c7 04 24 45 00 00 0c 40 88 74 24 0d 0f b6 02 88 44 24 0c 8b 01 89 44 24 08 85 f6 75 05 c6 44 24 0e 01 <48> 8b 7f 58 48 89 e6 ba 01 00 00 00 e8 08 3c 2a 00 65 48 8b 04 5 [ 37.510822] RSP: 0018:ffff969442853300 EFLAGS: 00010202 [ 37.516052] RAX: 0000000000000000 RBX: ffff92db03000000 RCX: ffff969442853358 [ 37.523185] RDX: ffff969442853368 RSI: 0000000000000001 RDI: 0000000000000000 [ 37.530322] RBP: 0000000000000001 R08: 00000000000004a7 R09: 00000000000004a5 [ 37.537453] R10: 0000000000000476 R11: 0000000000000062 R12: ffff92db0ade8000 [ 37.544589] R13: ffff92da01180ae0 R14: ffff92da011802a8 R15: ffff92db03000000 [ 37.551725] FS: 0000784a9cdfc6c0(0000) GS:ffff92db2af00000(0000) knlGS:0000000000000000 [ 37.559814] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.565562] CR2: 0000000000000058 CR3: 0000000112b1c000 CR4: 00000000003506f0 [ 37.572697] Call Trace: [ 37.575152] <TASK> [ 37.577258] ? __die_body+0x66/0xb0 [ 37.580756] ? page_fault_oops+0x3e7/0x4a0 [ 37.584861] ? exc_page_fault+0x3e/0xe0 [ 37.588706] ? exc_page_fault+0x5c/0xe0 [ 37.592550] ? asm_exc_page_fault+0x22/0x30 [ 37.596742] ? dmub_hw_lock_mgr_cmd+0x77/0xb0 [ 37.601107] dcn10_cursor_lock+0x1e1/0x240 [ 37.605211] program_cursor_attributes+0x81/0x190 [ 37.609923] commit_planes_for_stream+0x998/0x1ef0 [ 37.614722] update_planes_and_stream_v2+0x41e/0x5c0 [ 37.619703] dc_update_planes_and_stream+0x78/0x140 [ 37.624588] amdgpu_dm_atomic_commit_tail+0x4362/0x49f0 [ 37.629832] ? srso_return_thunk+0x5/0x5f [ 37.633847] ? mark_held_locks+0x6d/0xd0 [ 37.637774] ? _raw_spin_unlock_irq+0x24/0x50 [ 37.642135] ? srso_return_thunk+0x5/0x5f [ 37.646148] ? lockdep_hardirqs_on+0x95/0x150 [ 37.650510] ? srso_return_thunk+0x5/0x5f [ 37.654522] ? _raw_spin_unlock_irq+0x2f/0x50 [ 37.658883] ? srso_return_thunk+0x5/0x5f [ 37.662897] ? wait_for_common+0x186/0x1c0 [ 37.666998] ? srso_return_thunk+0x5/0x5f [ 37.671009] ? drm_crtc_next_vblank_start+0xc3/0x170 [ 37.675983] commit_tail+0xf5/0x1c0 [ 37.679478] drm_atomic_helper_commit+0x2a2/0x2b0 [ 37.684186] drm_atomic_commit+0xd6/0x100 [ 37.688199] ? __cfi___drm_printfn_info+0x10/0x10 [ 37.692911] drm_atomic_helper_update_plane+0xe5/0x130 [ 37.698054] drm_mode_cursor_common+0x501/0x670 [ 37.702600] ? __cfi_drm_mode_cursor_ioctl+0x10/0x10 [ 37.707572] drm_mode_cursor_ioctl+0x48/0x70 [ 37.711851] drm_ioctl_kernel+0xf2/0x150 [ 37.715781] drm_ioctl+0x363/0x590 [ 37.719189] ? __cfi_drm_mode_cursor_ioctl+0x10/0x10 [ 37.724165] amdgpu_drm_ioctl+0x41/0x80 [ 37.728013] __se_sys_ioctl+0x7f/0xd0 [ 37.731685] do_syscall_64+0x87/0x100 [ 37.735355] ? vma_end_read+0x12/0xe0 [ 37.739024] ? srso_return_thunk+0x5/0x5f [ 37.743041] ? find_held_lock+0x47/0xf0 [ 37.746884] ? vma_end_read+0x12/0xe0 [ 37.750552] ? srso_return_thunk+0x5/0 ---truncated---
References
Impacted products
Vendor Product Version
Linux Linux Version: b7d2461858ac75c9d6bc4ab8af1a738d0814b716
Version: 758abba3dd413dc5de2016f8588403294263a30a
Version: 4b46fc30b37e457d25cf3908c0c4dc3fbedd2044
Version: b5c764d6ed556c4e81fbe3fd976da77ec450c08e
Version: b5c764d6ed556c4e81fbe3fd976da77ec450c08e
Version: b5c764d6ed556c4e81fbe3fd976da77ec450c08e
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d953e2cd59ab466569c6f9da460e01caf1c83559",
              "status": "affected",
              "version": "b7d2461858ac75c9d6bc4ab8af1a738d0814b716",
              "versionType": "git"
            },
            {
              "lessThan": "b3a93a2407ad23c8d5bacabaf7cecbb4c6cdd461",
              "status": "affected",
              "version": "758abba3dd413dc5de2016f8588403294263a30a",
              "versionType": "git"
            },
            {
              "lessThan": "3453bcaf2ca92659346bf8504c2b52b3993fbd79",
              "status": "affected",
              "version": "4b46fc30b37e457d25cf3908c0c4dc3fbedd2044",
              "versionType": "git"
            },
            {
              "lessThan": "5e4b1e04740cdb28de189285007366d99a92f1ce",
              "status": "affected",
              "version": "b5c764d6ed556c4e81fbe3fd976da77ec450c08e",
              "versionType": "git"
            },
            {
              "lessThan": "35ad39afd007eddf34b3307bebb715c26891cc96",
              "status": "affected",
              "version": "b5c764d6ed556c4e81fbe3fd976da77ec450c08e",
              "versionType": "git"
            },
            {
              "lessThan": "42d9d7bed270247f134190ba0cb05bbd072f58c2",
              "status": "affected",
              "version": "b5c764d6ed556c4e81fbe3fd976da77ec450c08e",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.13"
            },
            {
              "lessThan": "6.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.134",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.87",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.23",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.2",
              "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": "6.1.134",
                  "versionStartIncluding": "6.1.128",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.87",
                  "versionStartIncluding": "6.6.75",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.23",
                  "versionStartIncluding": "6.12.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13.11",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.2",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "6.13",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: avoid NPD when ASIC does not support DMUB\n\nctx-\u003edmub_srv will de NULL if the ASIC does not support DMUB, which is\ntested in dm_dmub_sw_init.\n\nHowever, it will be dereferenced in dmub_hw_lock_mgr_cmd if\nshould_use_dmub_lock returns true.\n\nThis has been the case since dmub support has been added for PSR1.\n\nFix this by checking for dmub_srv in should_use_dmub_lock.\n\n[   37.440832] BUG: kernel NULL pointer dereference, address: 0000000000000058\n[   37.447808] #PF: supervisor read access in kernel mode\n[   37.452959] #PF: error_code(0x0000) - not-present page\n[   37.458112] PGD 0 P4D 0\n[   37.460662] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n[   37.465553] CPU: 2 UID: 1000 PID: 1745 Comm: DrmThread Not tainted 6.14.0-rc1-00003-gd62e938120f0 #23 99720e1cb1e0fc4773b8513150932a07de3c6e88\n[   37.478324] Hardware name: Google Morphius/Morphius, BIOS Google_Morphius.13434.858.0 10/26/2023\n[   37.487103] RIP: 0010:dmub_hw_lock_mgr_cmd+0x77/0xb0\n[   37.492074] Code: 44 24 0e 00 00 00 00 48 c7 04 24 45 00 00 0c 40 88 74 24 0d 0f b6 02 88 44 24 0c 8b 01 89 44 24 08 85 f6 75 05 c6 44 24 0e 01 \u003c48\u003e 8b 7f 58 48 89 e6 ba 01 00 00 00 e8 08 3c 2a 00 65 48 8b 04 5\n[   37.510822] RSP: 0018:ffff969442853300 EFLAGS: 00010202\n[   37.516052] RAX: 0000000000000000 RBX: ffff92db03000000 RCX: ffff969442853358\n[   37.523185] RDX: ffff969442853368 RSI: 0000000000000001 RDI: 0000000000000000\n[   37.530322] RBP: 0000000000000001 R08: 00000000000004a7 R09: 00000000000004a5\n[   37.537453] R10: 0000000000000476 R11: 0000000000000062 R12: ffff92db0ade8000\n[   37.544589] R13: ffff92da01180ae0 R14: ffff92da011802a8 R15: ffff92db03000000\n[   37.551725] FS:  0000784a9cdfc6c0(0000) GS:ffff92db2af00000(0000) knlGS:0000000000000000\n[   37.559814] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   37.565562] CR2: 0000000000000058 CR3: 0000000112b1c000 CR4: 00000000003506f0\n[   37.572697] Call Trace:\n[   37.575152]  \u003cTASK\u003e\n[   37.577258]  ? __die_body+0x66/0xb0\n[   37.580756]  ? page_fault_oops+0x3e7/0x4a0\n[   37.584861]  ? exc_page_fault+0x3e/0xe0\n[   37.588706]  ? exc_page_fault+0x5c/0xe0\n[   37.592550]  ? asm_exc_page_fault+0x22/0x30\n[   37.596742]  ? dmub_hw_lock_mgr_cmd+0x77/0xb0\n[   37.601107]  dcn10_cursor_lock+0x1e1/0x240\n[   37.605211]  program_cursor_attributes+0x81/0x190\n[   37.609923]  commit_planes_for_stream+0x998/0x1ef0\n[   37.614722]  update_planes_and_stream_v2+0x41e/0x5c0\n[   37.619703]  dc_update_planes_and_stream+0x78/0x140\n[   37.624588]  amdgpu_dm_atomic_commit_tail+0x4362/0x49f0\n[   37.629832]  ? srso_return_thunk+0x5/0x5f\n[   37.633847]  ? mark_held_locks+0x6d/0xd0\n[   37.637774]  ? _raw_spin_unlock_irq+0x24/0x50\n[   37.642135]  ? srso_return_thunk+0x5/0x5f\n[   37.646148]  ? lockdep_hardirqs_on+0x95/0x150\n[   37.650510]  ? srso_return_thunk+0x5/0x5f\n[   37.654522]  ? _raw_spin_unlock_irq+0x2f/0x50\n[   37.658883]  ? srso_return_thunk+0x5/0x5f\n[   37.662897]  ? wait_for_common+0x186/0x1c0\n[   37.666998]  ? srso_return_thunk+0x5/0x5f\n[   37.671009]  ? drm_crtc_next_vblank_start+0xc3/0x170\n[   37.675983]  commit_tail+0xf5/0x1c0\n[   37.679478]  drm_atomic_helper_commit+0x2a2/0x2b0\n[   37.684186]  drm_atomic_commit+0xd6/0x100\n[   37.688199]  ? __cfi___drm_printfn_info+0x10/0x10\n[   37.692911]  drm_atomic_helper_update_plane+0xe5/0x130\n[   37.698054]  drm_mode_cursor_common+0x501/0x670\n[   37.702600]  ? __cfi_drm_mode_cursor_ioctl+0x10/0x10\n[   37.707572]  drm_mode_cursor_ioctl+0x48/0x70\n[   37.711851]  drm_ioctl_kernel+0xf2/0x150\n[   37.715781]  drm_ioctl+0x363/0x590\n[   37.719189]  ? __cfi_drm_mode_cursor_ioctl+0x10/0x10\n[   37.724165]  amdgpu_drm_ioctl+0x41/0x80\n[   37.728013]  __se_sys_ioctl+0x7f/0xd0\n[   37.731685]  do_syscall_64+0x87/0x100\n[   37.735355]  ? vma_end_read+0x12/0xe0\n[   37.739024]  ? srso_return_thunk+0x5/0x5f\n[   37.743041]  ? find_held_lock+0x47/0xf0\n[   37.746884]  ? vma_end_read+0x12/0xe0\n[   37.750552]  ? srso_return_thunk+0x5/0\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:18:19.025Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d953e2cd59ab466569c6f9da460e01caf1c83559"
        },
        {
          "url": "https://git.kernel.org/stable/c/b3a93a2407ad23c8d5bacabaf7cecbb4c6cdd461"
        },
        {
          "url": "https://git.kernel.org/stable/c/3453bcaf2ca92659346bf8504c2b52b3993fbd79"
        },
        {
          "url": "https://git.kernel.org/stable/c/5e4b1e04740cdb28de189285007366d99a92f1ce"
        },
        {
          "url": "https://git.kernel.org/stable/c/35ad39afd007eddf34b3307bebb715c26891cc96"
        },
        {
          "url": "https://git.kernel.org/stable/c/42d9d7bed270247f134190ba0cb05bbd072f58c2"
        }
      ],
      "title": "drm/amd/display: avoid NPD when ASIC does not support DMUB",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-22093",
    "datePublished": "2025-04-16T14:12:44.802Z",
    "dateReserved": "2024-12-29T08:45:45.818Z",
    "dateUpdated": "2025-05-26T05:18:19.025Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-22093\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-04-16T15:16:03.490\",\"lastModified\":\"2025-04-17T20:22:16.240\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/amd/display: avoid NPD when ASIC does not support DMUB\\n\\nctx-\u003edmub_srv will de NULL if the ASIC does not support DMUB, which is\\ntested in dm_dmub_sw_init.\\n\\nHowever, it will be dereferenced in dmub_hw_lock_mgr_cmd if\\nshould_use_dmub_lock returns true.\\n\\nThis has been the case since dmub support has been added for PSR1.\\n\\nFix this by checking for dmub_srv in should_use_dmub_lock.\\n\\n[   37.440832] BUG: kernel NULL pointer dereference, address: 0000000000000058\\n[   37.447808] #PF: supervisor read access in kernel mode\\n[   37.452959] #PF: error_code(0x0000) - not-present page\\n[   37.458112] PGD 0 P4D 0\\n[   37.460662] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\\n[   37.465553] CPU: 2 UID: 1000 PID: 1745 Comm: DrmThread Not tainted 6.14.0-rc1-00003-gd62e938120f0 #23 99720e1cb1e0fc4773b8513150932a07de3c6e88\\n[   37.478324] Hardware name: Google Morphius/Morphius, BIOS Google_Morphius.13434.858.0 10/26/2023\\n[   37.487103] RIP: 0010:dmub_hw_lock_mgr_cmd+0x77/0xb0\\n[   37.492074] Code: 44 24 0e 00 00 00 00 48 c7 04 24 45 00 00 0c 40 88 74 24 0d 0f b6 02 88 44 24 0c 8b 01 89 44 24 08 85 f6 75 05 c6 44 24 0e 01 \u003c48\u003e 8b 7f 58 48 89 e6 ba 01 00 00 00 e8 08 3c 2a 00 65 48 8b 04 5\\n[   37.510822] RSP: 0018:ffff969442853300 EFLAGS: 00010202\\n[   37.516052] RAX: 0000000000000000 RBX: ffff92db03000000 RCX: ffff969442853358\\n[   37.523185] RDX: ffff969442853368 RSI: 0000000000000001 RDI: 0000000000000000\\n[   37.530322] RBP: 0000000000000001 R08: 00000000000004a7 R09: 00000000000004a5\\n[   37.537453] R10: 0000000000000476 R11: 0000000000000062 R12: ffff92db0ade8000\\n[   37.544589] R13: ffff92da01180ae0 R14: ffff92da011802a8 R15: ffff92db03000000\\n[   37.551725] FS:  0000784a9cdfc6c0(0000) GS:ffff92db2af00000(0000) knlGS:0000000000000000\\n[   37.559814] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[   37.565562] CR2: 0000000000000058 CR3: 0000000112b1c000 CR4: 00000000003506f0\\n[   37.572697] Call Trace:\\n[   37.575152]  \u003cTASK\u003e\\n[   37.577258]  ? __die_body+0x66/0xb0\\n[   37.580756]  ? page_fault_oops+0x3e7/0x4a0\\n[   37.584861]  ? exc_page_fault+0x3e/0xe0\\n[   37.588706]  ? exc_page_fault+0x5c/0xe0\\n[   37.592550]  ? asm_exc_page_fault+0x22/0x30\\n[   37.596742]  ? dmub_hw_lock_mgr_cmd+0x77/0xb0\\n[   37.601107]  dcn10_cursor_lock+0x1e1/0x240\\n[   37.605211]  program_cursor_attributes+0x81/0x190\\n[   37.609923]  commit_planes_for_stream+0x998/0x1ef0\\n[   37.614722]  update_planes_and_stream_v2+0x41e/0x5c0\\n[   37.619703]  dc_update_planes_and_stream+0x78/0x140\\n[   37.624588]  amdgpu_dm_atomic_commit_tail+0x4362/0x49f0\\n[   37.629832]  ? srso_return_thunk+0x5/0x5f\\n[   37.633847]  ? mark_held_locks+0x6d/0xd0\\n[   37.637774]  ? _raw_spin_unlock_irq+0x24/0x50\\n[   37.642135]  ? srso_return_thunk+0x5/0x5f\\n[   37.646148]  ? lockdep_hardirqs_on+0x95/0x150\\n[   37.650510]  ? srso_return_thunk+0x5/0x5f\\n[   37.654522]  ? _raw_spin_unlock_irq+0x2f/0x50\\n[   37.658883]  ? srso_return_thunk+0x5/0x5f\\n[   37.662897]  ? wait_for_common+0x186/0x1c0\\n[   37.666998]  ? srso_return_thunk+0x5/0x5f\\n[   37.671009]  ? drm_crtc_next_vblank_start+0xc3/0x170\\n[   37.675983]  commit_tail+0xf5/0x1c0\\n[   37.679478]  drm_atomic_helper_commit+0x2a2/0x2b0\\n[   37.684186]  drm_atomic_commit+0xd6/0x100\\n[   37.688199]  ? __cfi___drm_printfn_info+0x10/0x10\\n[   37.692911]  drm_atomic_helper_update_plane+0xe5/0x130\\n[   37.698054]  drm_mode_cursor_common+0x501/0x670\\n[   37.702600]  ? __cfi_drm_mode_cursor_ioctl+0x10/0x10\\n[   37.707572]  drm_mode_cursor_ioctl+0x48/0x70\\n[   37.711851]  drm_ioctl_kernel+0xf2/0x150\\n[   37.715781]  drm_ioctl+0x363/0x590\\n[   37.719189]  ? __cfi_drm_mode_cursor_ioctl+0x10/0x10\\n[   37.724165]  amdgpu_drm_ioctl+0x41/0x80\\n[   37.728013]  __se_sys_ioctl+0x7f/0xd0\\n[   37.731685]  do_syscall_64+0x87/0x100\\n[   37.735355]  ? vma_end_read+0x12/0xe0\\n[   37.739024]  ? srso_return_thunk+0x5/0x5f\\n[   37.743041]  ? find_held_lock+0x47/0xf0\\n[   37.746884]  ? vma_end_read+0x12/0xe0\\n[   37.750552]  ? srso_return_thunk+0x5/0\\n---truncated---\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: evitar NPD cuando el ASIC no es compatible con DMUB. ctx-\u0026gt;dmub_srv devuelve NULL si el ASIC no es compatible con DMUB, lo cual se prueba en dm_dmub_sw_init. Sin embargo, se desreferenciar\u00e1 en dmub_hw_lock_mgr_cmd si should_use_dmub_lock devuelve verdadero. Esto ha sido as\u00ed desde que se a\u00f1adi\u00f3 la compatibilidad con dmub para PSR1. Para solucionarlo, verifique dmub_srv en should_use_dmub_lock. [ 37.440832] ERROR: desreferencia de puntero NULL del kernel, direcci\u00f3n: 0000000000000058 [ 37.447808] #PF: acceso de lectura del supervisor en modo kernel [ 37.452959] #PF: error_code(0x0000) - p\u00e1gina no presente [ 37.458112] PGD 0 P4D 0 [ 37.460662] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI [ 37.465553] CPU: 2 UID: 1000 PID: 1745 Comm: DrmThread No contaminado 6.14.0-rc1-00003-gd62e938120f0 #23 99720e1cb1e0fc4773b8513150932a07de3c6e88 [ 37.478324] Nombre del hardware: Google Morphius/Morphius, BIOS Google_Morphius.13434.858.0 26/10/2023 [ 37.487103] RIP: 0010:dmub_hw_lock_mgr_cmd+0x77/0xb0 [ 37.492074] C\u00f3digo: 44 24 0e 00 00 00 00 48 c7 04 24 45 00 00 0c 40 88 74 24 0d 0f b6 02 88 44 24 0c 8b 01 89 44 24 08 85 f6 75 05 c6 44 24 0e 01 \u0026lt;48\u0026gt; 8b 7f 58 48 89 e6 ba 01 00 00 00 e8 08 3c 2a 00 65 48 8b 04 5 [ 37.510822] RSP: 0018:ffff969442853300 EFLAGS: 00010202 [ 37.516052] RAX: 000000000000000 RBX: ffff92db03000000 RCX: ffff969442853358 [ 37.523185] RDX: ffff969442853368 RSI: 00000000000000001 RDI: 0000000000000000 [ 37.530322] RBP: 0000000000000001 R08: 00000000000004a7 R09: 00000000000004a5 [ 37.537453] R10: 0000000000000476 R11: 0000000000000062 R12: ffff92db0ade8000 [ 37.544589] R13: ffff92da01180ae0 R14: ffff92da011802a8 R15: ffff92db03000000 [ 37.551725] FS: 0000784a9cdfc6c0(0000) GS:ffff92db2af00000(0000) knlGS:0000000000000000 [ 37.559814] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.565562] CR2: 000000000000058 CR3: 0000000112b1c000 CR4: 00000000003506f0 [ 37.572697] Rastreo de llamadas: [ 37.575152]  [ 37.577258] \u00bf__die_body+0x66/0xb0 [ 37.580756] ? page_fault_oops+0x3e7/0x4a0 [ 37.584861] ? exc_page_fault+0x3e/0xe0 [ 37.588706] ? exc_page_fault+0x5c/0xe0 [ 37.592550] ? asm_exc_page_fault+0x22/0x30 [ 37.596742] ? dmub_hw_lock_mgr_cmd+0x77/0xb0 [ 37.601107] dcn10_cursor_lock+0x1e1/0x240 [ 37.605211] program_cursor_attributes+0x81/0x190 [ 37.609923] commit_planes_for_stream+0x998/0x1ef0 [ 37.614722] update_planes_and_stream_v2+0x41e/0x5c0 [ 37.619703] dc_update_planes_and_stream+0x78/0x140 [ 37.624588] amdgpu_dm_atomic_commit_tail+0x4362/0x49f0 [ 37.629832] ? srso_return_thunk+0x5/0x5f [ 37.633847] ? mark_held_locks+0x6d/0xd0 [ 37.637774] ? _raw_spin_unlock_irq+0x24/0x50 [ 37.642135] ? srso_return_thunk+0x5/0x5f [ 37.646148] ? lockdep_hardirqs_on+0x95/0x150 [ 37.650510] ? srso_return_thunk+0x5/0x5f [ 37.654522] ? _raw_spin_unlock_irq+0x2f/0x50 [ 37.658883] ? srso_return_thunk+0x5/0x5f [ 37.662897] ? esperar_a_com\u00fan+0x186/0x1c0 [ 37.666998] ? srso_return_thunk+0x5/0x5f [ 37.671009] ? drm_crtc_next_vblank_start+0xc3/0x170 [ 37.675983] confirmaci\u00f3n_cola+0xf5/0x1c0 [ 37.679478] drm_atomic_helper_commit+0x2a2/0x2b0 [ 37.684186] drm_atomic_commit+0xd6/0x100 [ 37.688199] ? __cfi___drm_printfn_info+0x10/0x10 [ 37.692911] drm_atomic_helper_update_plane+0xe5/0x130 [ 37.698054] drm_mode_cursor_common+0x501/0x670 [ 37.702600] ? __cfi_drm_mode_cursor_ioctl+0x10/0x10 [ 37.707572] drm_mode_cursor_ioctl+0x48/0x70 [ 37.711851] drm_ioctl_kernel+0xf2/0x150 [ 37.715781] drm_ioctl+0x363/0x590 [ 37.719189] ? __cfi_drm_mode_cursor_ioctl+0x10/0x10 [ 37.724165] amdgpu_drm_ioctl+0x41/0x80 [ 37.728013] __se_sys_ioctl+0x7f/0xd0 [ 37.731685] do_syscall_64+0x87/0x100 [ 37.735355] ? vma_end_read+0x12/0xe0 [ 37.739024] ? srso_return_thunk+0x5/0x5f [ 37.743041] ? find_held_lock+0x47/0xf0 [ 37.746884] ? vma_end_read+0x12/0xe0 [37.750552] ? srso_return_thunk+0x5/0 ---truncado---\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/3453bcaf2ca92659346bf8504c2b52b3993fbd79\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/35ad39afd007eddf34b3307bebb715c26891cc96\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/42d9d7bed270247f134190ba0cb05bbd072f58c2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5e4b1e04740cdb28de189285007366d99a92f1ce\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b3a93a2407ad23c8d5bacabaf7cecbb4c6cdd461\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d953e2cd59ab466569c6f9da460e01caf1c83559\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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