fkie_cve-2022-50378
Vulnerability from fkie_nvd
Published
2025-09-18 14:15
Modified
2025-09-19 16:00
Severity ?
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---
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/31c519981eb141c7ec39bfd5be25d35f02edb868
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9190d287f7a6b02b50b510045b0edf448ed68e88
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9d33348513c36337f91f1991da23f41514d4de39
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d76ff04a72f90767455059c8239b06042cd0ed23
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "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---"
    }
  ],
  "id": "CVE-2022-50378",
  "lastModified": "2025-09-19T16:00:46.437",
  "metrics": {},
  "published": "2025-09-18T14:15:36.513",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/31c519981eb141c7ec39bfd5be25d35f02edb868"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9190d287f7a6b02b50b510045b0edf448ed68e88"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/9d33348513c36337f91f1991da23f41514d4de39"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d76ff04a72f90767455059c8239b06042cd0ed23"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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