CVE-2022-50378 (GCVE-0-2022-50378)

Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-08-15 12:23
VLAI
Title
drm/meson: reorder driver deinit sequence to fix use-after-free bug
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/meson: reorder driver deinit sequence to fix use-after-free bug Unloading the driver triggers the following KASAN warning: [ +0.006275] ============================================================= [ +0.000029] BUG: KASAN: use-after-free in __list_del_entry_valid+0xe0/0x1a0 [ +0.000026] Read of size 8 at addr ffff000020c395e0 by task rmmod/2695 [ +0.000019] CPU: 5 PID: 2695 Comm: rmmod Tainted: G C O 5.19.0-rc6-lrmbkasan+ #1 [ +0.000013] Hardware name: Hardkernel ODROID-N2Plus (DT) [ +0.000008] Call trace: [ +0.000007] dump_backtrace+0x1ec/0x280 [ +0.000013] show_stack+0x24/0x80 [ +0.000008] dump_stack_lvl+0x98/0xd4 [ +0.000011] print_address_description.constprop.0+0x80/0x520 [ +0.000011] print_report+0x128/0x260 [ +0.000007] kasan_report+0xb8/0xfc [ +0.000008] __asan_report_load8_noabort+0x3c/0x50 [ +0.000010] __list_del_entry_valid+0xe0/0x1a0 [ +0.000009] drm_atomic_private_obj_fini+0x30/0x200 [drm] [ +0.000172] drm_bridge_detach+0x94/0x260 [drm] [ +0.000145] drm_encoder_cleanup+0xa4/0x290 [drm] [ +0.000144] drm_mode_config_cleanup+0x118/0x740 [drm] [ +0.000143] drm_mode_config_init_release+0x1c/0x2c [drm] [ +0.000144] drm_managed_release+0x170/0x414 [drm] [ +0.000142] drm_dev_put.part.0+0xc0/0x124 [drm] [ +0.000143] drm_dev_put+0x20/0x30 [drm] [ +0.000142] meson_drv_unbind+0x1d8/0x2ac [meson_drm] [ +0.000028] take_down_aggregate_device+0xb0/0x160 [ +0.000016] component_del+0x18c/0x360 [ +0.000009] meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi] [ +0.000015] platform_remove+0x64/0xb0 [ +0.000009] device_remove+0xb8/0x154 [ +0.000009] device_release_driver_internal+0x398/0x5b0 [ +0.000009] driver_detach+0xac/0x1b0 [ +0.000009] bus_remove_driver+0x158/0x29c [ +0.000009] driver_unregister+0x70/0xb0 [ +0.000008] platform_driver_unregister+0x20/0x2c [ +0.000008] meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi] [ +0.000012] __do_sys_delete_module+0x288/0x400 [ +0.000011] __arm64_sys_delete_module+0x5c/0x80 [ +0.000009] invoke_syscall+0x74/0x260 [ +0.000009] el0_svc_common.constprop.0+0xcc/0x260 [ +0.000009] do_el0_svc+0x50/0x70 [ +0.000007] el0_svc+0x68/0x1a0 [ +0.000012] el0t_64_sync_handler+0x11c/0x150 [ +0.000008] el0t_64_sync+0x18c/0x190 [ +0.000018] Allocated by task 0: [ +0.000007] (stack is not available) [ +0.000011] Freed by task 2695: [ +0.000008] kasan_save_stack+0x2c/0x5c [ +0.000011] kasan_set_track+0x2c/0x40 [ +0.000008] kasan_set_free_info+0x28/0x50 [ +0.000009] ____kasan_slab_free+0x128/0x1d4 [ +0.000008] __kasan_slab_free+0x18/0x24 [ +0.000007] slab_free_freelist_hook+0x108/0x230 [ +0.000011] kfree+0x110/0x35c [ +0.000008] release_nodes+0xf0/0x16c [ +0.000009] devres_release_group+0x180/0x270 [ +0.000008] component_unbind+0x128/0x1e0 [ +0.000010] component_unbind_all+0x1b8/0x264 [ +0.000009] meson_drv_unbind+0x1a0/0x2ac [meson_drm] [ +0.000025] take_down_aggregate_device+0xb0/0x160 [ +0.000009] component_del+0x18c/0x360 [ +0.000009] meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi] [ +0.000012] platform_remove+0x64/0xb0 [ +0.000008] device_remove+0xb8/0x154 [ +0.000009] device_release_driver_internal+0x398/0x5b0 [ +0.000009] driver_detach+0xac/0x1b0 [ +0.000009] bus_remove_driver+0x158/0x29c [ +0.000008] driver_unregister+0x70/0xb0 [ +0.000008] platform_driver_unregister+0x20/0x2c [ +0.000008] meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi] [ +0.000011] __do_sys_delete_module+0x288/0x400 [ +0.000010] __arm64_sys_delete_module+0x5c/0x80 [ +0.000008] invoke_syscall+0x74/0x260 [ +0.000008] el0_svc_common.constprop.0+0xcc/0x260 [ +0.000008] do_el0_svc+0x50/0x70 [ +0.000007] el0_svc+0x68/0x1a0 [ +0.000009] el0t_64_sync_handler+0x11c/0x150 [ +0.000009] el0t_64_sync+0x18c/0x190 [ +0.000014] The buggy address belongs to the object at ffff000020c39000 ---truncated---
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: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:46 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e78ad18ba3658fbc8c63629e034b68d8e51acbf1 , < d76ff04a72f90767455059c8239b06042cd0ed23 (git)
Affected: e78ad18ba3658fbc8c63629e034b68d8e51acbf1 , < 9190d287f7a6b02b50b510045b0edf448ed68e88 (git)
Affected: e78ad18ba3658fbc8c63629e034b68d8e51acbf1 , < 9d33348513c36337f91f1991da23f41514d4de39 (git)
Affected: e78ad18ba3658fbc8c63629e034b68d8e51acbf1 , < 31c519981eb141c7ec39bfd5be25d35f02edb868 (git)
Affected: 2777970add401e92d531a16dda30d84ec0831226 (git)
Affected: 5.10.4 , < 5.11 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 5.15.75 , ≤ 5.15.* (semver)
Unaffected: 5.19.17 , ≤ 5.19.* (semver)
Unaffected: 6.0.3 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 7.8,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2022-50378",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-01-14T18:46:57.623171Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-416",
                "description": "CWE-416 Use After Free",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-01-14T18:53:03.454Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    ],
    "cna": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
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          ],
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          "vendor": "Linux",
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              "status": "affected",
              "version": "e78ad18ba3658fbc8c63629e034b68d8e51acbf1",
              "versionType": "git"
            },
            {
              "lessThan": "9190d287f7a6b02b50b510045b0edf448ed68e88",
              "status": "affected",
              "version": "e78ad18ba3658fbc8c63629e034b68d8e51acbf1",
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            {
              "lessThan": "9d33348513c36337f91f1991da23f41514d4de39",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "31c519981eb141c7ec39bfd5be25d35f02edb868",
              "status": "affected",
              "version": "e78ad18ba3658fbc8c63629e034b68d8e51acbf1",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "2777970add401e92d531a16dda30d84ec0831226",
              "versionType": "git"
            },
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              "status": "affected",
              "version": "5.10.4",
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            }
          ]
        },
        {
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          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/meson/meson_drv.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.11"
            },
            {
              "lessThan": "5.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.75",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.19.*",
              "status": "unaffected",
              "version": "5.19.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.75",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.19.17",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.3",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                },
                {
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/meson: reorder driver deinit sequence to fix use-after-free bug\n\nUnloading the driver triggers the following KASAN warning:\n\n[  +0.006275] =============================================================\n[  +0.000029] BUG: KASAN: use-after-free in __list_del_entry_valid+0xe0/0x1a0\n[  +0.000026] Read of size 8 at addr ffff000020c395e0 by task rmmod/2695\n\n[  +0.000019] CPU: 5 PID: 2695 Comm: rmmod Tainted: G         C O      5.19.0-rc6-lrmbkasan+ #1\n[  +0.000013] Hardware name: Hardkernel ODROID-N2Plus (DT)\n[  +0.000008] Call trace:\n[  +0.000007]  dump_backtrace+0x1ec/0x280\n[  +0.000013]  show_stack+0x24/0x80\n[  +0.000008]  dump_stack_lvl+0x98/0xd4\n[  +0.000011]  print_address_description.constprop.0+0x80/0x520\n[  +0.000011]  print_report+0x128/0x260\n[  +0.000007]  kasan_report+0xb8/0xfc\n[  +0.000008]  __asan_report_load8_noabort+0x3c/0x50\n[  +0.000010]  __list_del_entry_valid+0xe0/0x1a0\n[  +0.000009]  drm_atomic_private_obj_fini+0x30/0x200 [drm]\n[  +0.000172]  drm_bridge_detach+0x94/0x260 [drm]\n[  +0.000145]  drm_encoder_cleanup+0xa4/0x290 [drm]\n[  +0.000144]  drm_mode_config_cleanup+0x118/0x740 [drm]\n[  +0.000143]  drm_mode_config_init_release+0x1c/0x2c [drm]\n[  +0.000144]  drm_managed_release+0x170/0x414 [drm]\n[  +0.000142]  drm_dev_put.part.0+0xc0/0x124 [drm]\n[  +0.000143]  drm_dev_put+0x20/0x30 [drm]\n[  +0.000142]  meson_drv_unbind+0x1d8/0x2ac [meson_drm]\n[  +0.000028]  take_down_aggregate_device+0xb0/0x160\n[  +0.000016]  component_del+0x18c/0x360\n[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]\n[  +0.000015]  platform_remove+0x64/0xb0\n[  +0.000009]  device_remove+0xb8/0x154\n[  +0.000009]  device_release_driver_internal+0x398/0x5b0\n[  +0.000009]  driver_detach+0xac/0x1b0\n[  +0.000009]  bus_remove_driver+0x158/0x29c\n[  +0.000009]  driver_unregister+0x70/0xb0\n[  +0.000008]  platform_driver_unregister+0x20/0x2c\n[  +0.000008]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]\n[  +0.000012]  __do_sys_delete_module+0x288/0x400\n[  +0.000011]  __arm64_sys_delete_module+0x5c/0x80\n[  +0.000009]  invoke_syscall+0x74/0x260\n[  +0.000009]  el0_svc_common.constprop.0+0xcc/0x260\n[  +0.000009]  do_el0_svc+0x50/0x70\n[  +0.000007]  el0_svc+0x68/0x1a0\n[  +0.000012]  el0t_64_sync_handler+0x11c/0x150\n[  +0.000008]  el0t_64_sync+0x18c/0x190\n\n[  +0.000018] Allocated by task 0:\n[  +0.000007] (stack is not available)\n\n[  +0.000011] Freed by task 2695:\n[  +0.000008]  kasan_save_stack+0x2c/0x5c\n[  +0.000011]  kasan_set_track+0x2c/0x40\n[  +0.000008]  kasan_set_free_info+0x28/0x50\n[  +0.000009]  ____kasan_slab_free+0x128/0x1d4\n[  +0.000008]  __kasan_slab_free+0x18/0x24\n[  +0.000007]  slab_free_freelist_hook+0x108/0x230\n[  +0.000011]  kfree+0x110/0x35c\n[  +0.000008]  release_nodes+0xf0/0x16c\n[  +0.000009]  devres_release_group+0x180/0x270\n[  +0.000008]  component_unbind+0x128/0x1e0\n[  +0.000010]  component_unbind_all+0x1b8/0x264\n[  +0.000009]  meson_drv_unbind+0x1a0/0x2ac [meson_drm]\n[  +0.000025]  take_down_aggregate_device+0xb0/0x160\n[  +0.000009]  component_del+0x18c/0x360\n[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]\n[  +0.000012]  platform_remove+0x64/0xb0\n[  +0.000008]  device_remove+0xb8/0x154\n[  +0.000009]  device_release_driver_internal+0x398/0x5b0\n[  +0.000009]  driver_detach+0xac/0x1b0\n[  +0.000009]  bus_remove_driver+0x158/0x29c\n[  +0.000008]  driver_unregister+0x70/0xb0\n[  +0.000008]  platform_driver_unregister+0x20/0x2c\n[  +0.000008]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]\n[  +0.000011]  __do_sys_delete_module+0x288/0x400\n[  +0.000010]  __arm64_sys_delete_module+0x5c/0x80\n[  +0.000008]  invoke_syscall+0x74/0x260\n[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260\n[  +0.000008]  do_el0_svc+0x50/0x70\n[  +0.000007]  el0_svc+0x68/0x1a0\n[  +0.000009]  el0t_64_sync_handler+0x11c/0x150\n[  +0.000009]  el0t_64_sync+0x18c/0x190\n\n[  +0.000014] The buggy address belongs to the object at ffff000020c39000\n---truncated---"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-15T12:23:24.666Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d76ff04a72f90767455059c8239b06042cd0ed23"
        },
        {
          "url": "https://git.kernel.org/stable/c/9190d287f7a6b02b50b510045b0edf448ed68e88"
        },
        {
          "url": "https://git.kernel.org/stable/c/9d33348513c36337f91f1991da23f41514d4de39"
        },
        {
          "url": "https://git.kernel.org/stable/c/31c519981eb141c7ec39bfd5be25d35f02edb868"
        }
      ],
      "title": "drm/meson: reorder driver deinit sequence to fix use-after-free bug",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50378",
    "datePublished": "2025-09-18T13:33:00.694Z",
    "dateReserved": "2025-09-17T14:53:06.996Z",
    "dateUpdated": "2026-08-15T12:23:24.666Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2022-50378",
      "date": "2026-09-26",
      "epss": "0.00159",
      "percentile": "0.0436"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
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                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
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                    "lessThan": "d76ff04a72f90767455059c8239b06042cd0ed23",
                    "status": "affected",
                    "version": "e78ad18ba3658fbc8c63629e034b68d8e51acbf1",
                    "versionType": "git"
                  },
                  {
                    "lessThan": "9190d287f7a6b02b50b510045b0edf448ed68e88",
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              {
                "defaultStatus": "affected",
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                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/meson: reorder driver deinit sequence to fix use-after-free bug\n\nUnloading the driver triggers the following KASAN warning:\n\n[  +0.006275] =============================================================\n[  +0.000029] BUG: KASAN: use-after-free in __list_del_entry_valid+0xe0/0x1a0\n[  +0.000026] Read of size 8 at addr ffff000020c395e0 by task rmmod/2695\n\n[  +0.000019] CPU: 5 PID: 2695 Comm: rmmod Tainted: G         C O      5.19.0-rc6-lrmbkasan+ #1\n[  +0.000013] Hardware name: Hardkernel ODROID-N2Plus (DT)\n[  +0.000008] Call trace:\n[  +0.000007]  dump_backtrace+0x1ec/0x280\n[  +0.000013]  show_stack+0x24/0x80\n[  +0.000008]  dump_stack_lvl+0x98/0xd4\n[  +0.000011]  print_address_description.constprop.0+0x80/0x520\n[  +0.000011]  print_report+0x128/0x260\n[  +0.000007]  kasan_report+0xb8/0xfc\n[  +0.000008]  __asan_report_load8_noabort+0x3c/0x50\n[  +0.000010]  __list_del_entry_valid+0xe0/0x1a0\n[  +0.000009]  drm_atomic_private_obj_fini+0x30/0x200 [drm]\n[  +0.000172]  drm_bridge_detach+0x94/0x260 [drm]\n[  +0.000145]  drm_encoder_cleanup+0xa4/0x290 [drm]\n[  +0.000144]  drm_mode_config_cleanup+0x118/0x740 [drm]\n[  +0.000143]  drm_mode_config_init_release+0x1c/0x2c [drm]\n[  +0.000144]  drm_managed_release+0x170/0x414 [drm]\n[  +0.000142]  drm_dev_put.part.0+0xc0/0x124 [drm]\n[  +0.000143]  drm_dev_put+0x20/0x30 [drm]\n[  +0.000142]  meson_drv_unbind+0x1d8/0x2ac [meson_drm]\n[  +0.000028]  take_down_aggregate_device+0xb0/0x160\n[  +0.000016]  component_del+0x18c/0x360\n[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]\n[  +0.000015]  platform_remove+0x64/0xb0\n[  +0.000009]  device_remove+0xb8/0x154\n[  +0.000009]  device_release_driver_internal+0x398/0x5b0\n[  +0.000009]  driver_detach+0xac/0x1b0\n[  +0.000009]  bus_remove_driver+0x158/0x29c\n[  +0.000009]  driver_unregister+0x70/0xb0\n[  +0.000008]  platform_driver_unregister+0x20/0x2c\n[  +0.000008]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]\n[  +0.000012]  __do_sys_delete_module+0x288/0x400\n[  +0.000011]  __arm64_sys_delete_module+0x5c/0x80\n[  +0.000009]  invoke_syscall+0x74/0x260\n[  +0.000009]  el0_svc_common.constprop.0+0xcc/0x260\n[  +0.000009]  do_el0_svc+0x50/0x70\n[  +0.000007]  el0_svc+0x68/0x1a0\n[  +0.000012]  el0t_64_sync_handler+0x11c/0x150\n[  +0.000008]  el0t_64_sync+0x18c/0x190\n\n[  +0.000018] Allocated by task 0:\n[  +0.000007] (stack is not available)\n\n[  +0.000011] Freed by task 2695:\n[  +0.000008]  kasan_save_stack+0x2c/0x5c\n[  +0.000011]  kasan_set_track+0x2c/0x40\n[  +0.000008]  kasan_set_free_info+0x28/0x50\n[  +0.000009]  ____kasan_slab_free+0x128/0x1d4\n[  +0.000008]  __kasan_slab_free+0x18/0x24\n[  +0.000007]  slab_free_freelist_hook+0x108/0x230\n[  +0.000011]  kfree+0x110/0x35c\n[  +0.000008]  release_nodes+0xf0/0x16c\n[  +0.000009]  devres_release_group+0x180/0x270\n[  +0.000008]  component_unbind+0x128/0x1e0\n[  +0.000010]  component_unbind_all+0x1b8/0x264\n[  +0.000009]  meson_drv_unbind+0x1a0/0x2ac [meson_drm]\n[  +0.000025]  take_down_aggregate_device+0xb0/0x160\n[  +0.000009]  component_del+0x18c/0x360\n[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]\n[  +0.000012]  platform_remove+0x64/0xb0\n[  +0.000008]  device_remove+0xb8/0x154\n[  +0.000009]  device_release_driver_internal+0x398/0x5b0\n[  +0.000009]  driver_detach+0xac/0x1b0\n[  +0.000009]  bus_remove_driver+0x158/0x29c\n[  +0.000008]  driver_unregister+0x70/0xb0\n[  +0.000008]  platform_driver_unregister+0x20/0x2c\n[  +0.000008]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]\n[  +0.000011]  __do_sys_delete_module+0x288/0x400\n[  +0.000010]  __arm64_sys_delete_module+0x5c/0x80\n[  +0.000008]  invoke_syscall+0x74/0x260\n[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260\n[  +0.000008]  do_el0_svc+0x50/0x70\n[  +0.000007]  el0_svc+0x68/0x1a0\n[  +0.000009]  el0t_64_sync_handler+0x11c/0x150\n[  +0.000009]  el0t_64_sync+0x18c/0x190\n\n[  +0.000014] The buggy address belongs to the object at ffff000020c39000\n---truncated---"
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            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/meson: reorder driver deinit sequence to fix use-after-free bug\n\nUnloading the driver triggers the following KASAN warning:\n\n[  +0.006275] =============================================================\n[  +0.000029] BUG: KASAN: use-after-free in __list_del_entry_valid+0xe0/0x1a0\n[  +0.000026] Read of size 8 at addr ffff000020c395e0 by task rmmod/2695\n\n[  +0.000019] CPU: 5 PID: 2695 Comm: rmmod Tainted: G         C O      5.19.0-rc6-lrmbkasan+ #1\n[  +0.000013] Hardware name: Hardkernel ODROID-N2Plus (DT)\n[  +0.000008] Call trace:\n[  +0.000007]  dump_backtrace+0x1ec/0x280\n[  +0.000013]  show_stack+0x24/0x80\n[  +0.000008]  dump_stack_lvl+0x98/0xd4\n[  +0.000011]  print_address_description.constprop.0+0x80/0x520\n[  +0.000011]  print_report+0x128/0x260\n[  +0.000007]  kasan_report+0xb8/0xfc\n[  +0.000008]  __asan_report_load8_noabort+0x3c/0x50\n[  +0.000010]  __list_del_entry_valid+0xe0/0x1a0\n[  +0.000009]  drm_atomic_private_obj_fini+0x30/0x200 [drm]\n[  +0.000172]  drm_bridge_detach+0x94/0x260 [drm]\n[  +0.000145]  drm_encoder_cleanup+0xa4/0x290 [drm]\n[  +0.000144]  drm_mode_config_cleanup+0x118/0x740 [drm]\n[  +0.000143]  drm_mode_config_init_release+0x1c/0x2c [drm]\n[  +0.000144]  drm_managed_release+0x170/0x414 [drm]\n[  +0.000142]  drm_dev_put.part.0+0xc0/0x124 [drm]\n[  +0.000143]  drm_dev_put+0x20/0x30 [drm]\n[  +0.000142]  meson_drv_unbind+0x1d8/0x2ac [meson_drm]\n[  +0.000028]  take_down_aggregate_device+0xb0/0x160\n[  +0.000016]  component_del+0x18c/0x360\n[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]\n[  +0.000015]  platform_remove+0x64/0xb0\n[  +0.000009]  device_remove+0xb8/0x154\n[  +0.000009]  device_release_driver_internal+0x398/0x5b0\n[  +0.000009]  driver_detach+0xac/0x1b0\n[  +0.000009]  bus_remove_driver+0x158/0x29c\n[  +0.000009]  driver_unregister+0x70/0xb0\n[  +0.000008]  platform_driver_unregister+0x20/0x2c\n[  +0.000008]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]\n[  +0.000012]  __do_sys_delete_module+0x288/0x400\n[  +0.000011]  __arm64_sys_delete_module+0x5c/0x80\n[  +0.000009]  invoke_syscall+0x74/0x260\n[  +0.000009]  el0_svc_common.constprop.0+0xcc/0x260\n[  +0.000009]  do_el0_svc+0x50/0x70\n[  +0.000007]  el0_svc+0x68/0x1a0\n[  +0.000012]  el0t_64_sync_handler+0x11c/0x150\n[  +0.000008]  el0t_64_sync+0x18c/0x190\n\n[  +0.000018] Allocated by task 0:\n[  +0.000007] (stack is not available)\n\n[  +0.000011] Freed by task 2695:\n[  +0.000008]  kasan_save_stack+0x2c/0x5c\n[  +0.000011]  kasan_set_track+0x2c/0x40\n[  +0.000008]  kasan_set_free_info+0x28/0x50\n[  +0.000009]  ____kasan_slab_free+0x128/0x1d4\n[  +0.000008]  __kasan_slab_free+0x18/0x24\n[  +0.000007]  slab_free_freelist_hook+0x108/0x230\n[  +0.000011]  kfree+0x110/0x35c\n[  +0.000008]  release_nodes+0xf0/0x16c\n[  +0.000009]  devres_release_group+0x180/0x270\n[  +0.000008]  component_unbind+0x128/0x1e0\n[  +0.000010]  component_unbind_all+0x1b8/0x264\n[  +0.000009]  meson_drv_unbind+0x1a0/0x2ac [meson_drm]\n[  +0.000025]  take_down_aggregate_device+0xb0/0x160\n[  +0.000009]  component_del+0x18c/0x360\n[  +0.000009]  meson_dw_hdmi_remove+0x28/0x40 [meson_dw_hdmi]\n[  +0.000012]  platform_remove+0x64/0xb0\n[  +0.000008]  device_remove+0xb8/0x154\n[  +0.000009]  device_release_driver_internal+0x398/0x5b0\n[  +0.000009]  driver_detach+0xac/0x1b0\n[  +0.000009]  bus_remove_driver+0x158/0x29c\n[  +0.000008]  driver_unregister+0x70/0xb0\n[  +0.000008]  platform_driver_unregister+0x20/0x2c\n[  +0.000008]  meson_dw_hdmi_platform_driver_exit+0x1c/0x30 [meson_dw_hdmi]\n[  +0.000011]  __do_sys_delete_module+0x288/0x400\n[  +0.000010]  __arm64_sys_delete_module+0x5c/0x80\n[  +0.000008]  invoke_syscall+0x74/0x260\n[  +0.000008]  el0_svc_common.constprop.0+0xcc/0x260\n[  +0.000008]  do_el0_svc+0x50/0x70\n[  +0.000007]  el0_svc+0x68/0x1a0\n[  +0.000009]  el0t_64_sync_handler+0x11c/0x150\n[  +0.000009]  el0t_64_sync+0x18c/0x190\n\n[  +0.000014] The buggy address belongs to the object at ffff000020c39000\n---truncated---"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-08-15T12:23:24.666Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/d76ff04a72f90767455059c8239b06042cd0ed23"
            },
            {
              "url": "https://git.kernel.org/stable/c/9190d287f7a6b02b50b510045b0edf448ed68e88"
            },
            {
              "url": "https://git.kernel.org/stable/c/9d33348513c36337f91f1991da23f41514d4de39"
            },
            {
              "url": "https://git.kernel.org/stable/c/31c519981eb141c7ec39bfd5be25d35f02edb868"
            }
          ],
          "title": "drm/meson: reorder driver deinit sequence to fix use-after-free bug",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-50378",
        "datePublished": "2025-09-18T13:33:00.694Z",
        "dateReserved": "2025-09-17T14:53:06.996Z",
        "dateUpdated": "2026-08-15T12:23:24.666Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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