fkie_cve-2022-50173
Vulnerability from fkie_nvd
Published
2025-06-18 11:15
Modified
2025-06-18 13:47
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/msm/mdp5: Fix global state lock backoff We need to grab the lock after the early return for !hwpipe case. Otherwise, we could have hit contention yet still returned 0. Fixes an issue that the new CONFIG_DRM_DEBUG_MODESET_LOCK stuff flagged in CI: WARNING: CPU: 0 PID: 282 at drivers/gpu/drm/drm_modeset_lock.c:296 drm_modeset_lock+0xf8/0x154 Modules linked in: CPU: 0 PID: 282 Comm: kms_cursor_lega Tainted: G W 5.19.0-rc2-15930-g875cc8bc536a #1 Hardware name: Qualcomm Technologies, Inc. DB820c (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_modeset_lock+0xf8/0x154 lr : drm_atomic_get_private_obj_state+0x84/0x170 sp : ffff80000cfab6a0 x29: ffff80000cfab6a0 x28: 0000000000000000 x27: ffff000083bc4d00 x26: 0000000000000038 x25: 0000000000000000 x24: ffff80000957ca58 x23: 0000000000000000 x22: ffff000081ace080 x21: 0000000000000001 x20: ffff000081acec18 x19: ffff80000cfabb80 x18: 0000000000000038 x17: 0000000000000000 x16: 0000000000000000 x15: fffffffffffea0d0 x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 5f534b434f4c5f47 x11: ffff80000a386aa8 x10: 0000000000000029 x9 : ffff80000cfab610 x8 : 0000000000000029 x7 : 0000000000000014 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000081ad904 x3 : 0000000000000029 x2 : ffff0000801db4c0 x1 : ffff80000cfabb80 x0 : ffff000081aceb58 Call trace: drm_modeset_lock+0xf8/0x154 drm_atomic_get_private_obj_state+0x84/0x170 mdp5_get_global_state+0x54/0x6c mdp5_pipe_release+0x2c/0xd4 mdp5_plane_atomic_check+0x2ec/0x414 drm_atomic_helper_check_planes+0xd8/0x210 drm_atomic_helper_check+0x54/0xb0 ... ---[ end trace 0000000000000000 ]--- drm_modeset_lock attempting to lock a contended lock without backoff: drm_modeset_lock+0x148/0x154 mdp5_get_global_state+0x30/0x6c mdp5_pipe_release+0x2c/0xd4 mdp5_plane_atomic_check+0x290/0x414 drm_atomic_helper_check_planes+0xd8/0x210 drm_atomic_helper_check+0x54/0xb0 drm_atomic_check_only+0x4b0/0x8f4 drm_atomic_commit+0x68/0xe0 Patchwork: https://patchwork.freedesktop.org/patch/492701/
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0b07f28c23ff50a7fa5dbc3f6b3b6bd53ac9fc70
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/247f2934324f9a18d18df24ea4bfcc7d4631d0ef
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2e34d6c8180a398de6448a93df25068bf3062042
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2fdf5a54ef9376ff69149a48c5616f1141008c9f
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/92ef86ab513593c6329d04146e61f9a670e72fc5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bf386c955f35a0a01bef482b6035d40ff2f6cc75
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f4e3a8c7e890049e7ba2b49ad0315dae841dfa55
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/mdp5: Fix global state lock backoff\n\nWe need to grab the lock after the early return for !hwpipe case.\nOtherwise, we could have hit contention yet still returned 0.\n\nFixes an issue that the new CONFIG_DRM_DEBUG_MODESET_LOCK stuff flagged\nin CI:\n\n   WARNING: CPU: 0 PID: 282 at drivers/gpu/drm/drm_modeset_lock.c:296 drm_modeset_lock+0xf8/0x154\n   Modules linked in:\n   CPU: 0 PID: 282 Comm: kms_cursor_lega Tainted: G        W         5.19.0-rc2-15930-g875cc8bc536a #1\n   Hardware name: Qualcomm Technologies, Inc. DB820c (DT)\n   pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n   pc : drm_modeset_lock+0xf8/0x154\n   lr : drm_atomic_get_private_obj_state+0x84/0x170\n   sp : ffff80000cfab6a0\n   x29: ffff80000cfab6a0 x28: 0000000000000000 x27: ffff000083bc4d00\n   x26: 0000000000000038 x25: 0000000000000000 x24: ffff80000957ca58\n   x23: 0000000000000000 x22: ffff000081ace080 x21: 0000000000000001\n   x20: ffff000081acec18 x19: ffff80000cfabb80 x18: 0000000000000038\n   x17: 0000000000000000 x16: 0000000000000000 x15: fffffffffffea0d0\n   x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 5f534b434f4c5f47\n   x11: ffff80000a386aa8 x10: 0000000000000029 x9 : ffff80000cfab610\n   x8 : 0000000000000029 x7 : 0000000000000014 x6 : 0000000000000000\n   x5 : 0000000000000001 x4 : ffff8000081ad904 x3 : 0000000000000029\n   x2 : ffff0000801db4c0 x1 : ffff80000cfabb80 x0 : ffff000081aceb58\n   Call trace:\n    drm_modeset_lock+0xf8/0x154\n    drm_atomic_get_private_obj_state+0x84/0x170\n    mdp5_get_global_state+0x54/0x6c\n    mdp5_pipe_release+0x2c/0xd4\n    mdp5_plane_atomic_check+0x2ec/0x414\n    drm_atomic_helper_check_planes+0xd8/0x210\n    drm_atomic_helper_check+0x54/0xb0\n    ...\n   ---[ end trace 0000000000000000 ]---\n   drm_modeset_lock attempting to lock a contended lock without backoff:\n      drm_modeset_lock+0x148/0x154\n      mdp5_get_global_state+0x30/0x6c\n      mdp5_pipe_release+0x2c/0xd4\n      mdp5_plane_atomic_check+0x290/0x414\n      drm_atomic_helper_check_planes+0xd8/0x210\n      drm_atomic_helper_check+0x54/0xb0\n      drm_atomic_check_only+0x4b0/0x8f4\n      drm_atomic_commit+0x68/0xe0\n\nPatchwork: https://patchwork.freedesktop.org/patch/492701/"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/msm/mdp5: Se corrige el retroceso del bloqueo del estado global. Necesitamos tomar el bloqueo despu\u00e9s del retorno anticipado para el caso de !hwpipe. De lo contrario, podr\u00edamos haber llegado a una contenci\u00f3n y a\u00fan as\u00ed haber devuelto 0. Corrige un problema que el nuevo material CONFIG_DRM_DEBUG_MODESET_LOCK marc\u00f3 en CI: ADVERTENCIA: CPU: 0 PID: 282 en drivers/gpu/drm/drm_modeset_lock.c:296 drm_modeset_lock+0xf8/0x154 M\u00f3dulos vinculados en: CPU: 0 PID: 282 Comm: kms_cursor_lega Tainted: GW 5.19.0-rc2-15930-g875cc8bc536a #1 Nombre del hardware: Qualcomm Technologies, Inc. DB820c (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : drm_modeset_lock+0xf8/0x154 lr : drm_atomic_get_private_obj_state+0x84/0x170 sp : ffff80000cfab6a0 x29: ffff80000cfab6a0 x28: 0000000000000000 x27: ffff000083bc4d00 x26: 0000000000000038 x25: 0000000000000000 x24: ffff80000957ca58 x23: 0000000000000000 x22: ffff000081ace080 x21: 0000000000000001 x20: ffff000081acec18 x19: ffff80000cfabb80 x18: 0000000000000038 x17: 0000000000000000 x16: 0000000000000000 x15: fffffffffffea0d0 x14: 0000000000000000 x13: 284e4f5f4e524157 x12: 5f534b434f4c5f47 x11: ffff80000a386aa8 x10: 0000000000000029 x9: ffff80000cfab610 x8: 0000000000000029 x7: 00000000000000014 x6 : 0000000000000000 x5 : 0000000000000001 x4 : ffff8000081ad904 x3 : 0000000000000029 x2 : ffff0000801db4c0 x1 : ffff80000cfabb80 x0 : ffff000081aceb58 Rastreo de llamadas: drm_modeset_lock+0xf8/0x154 drm_atomic_get_private_obj_state+0x84/0x170 mdp5_get_global_state+0x54/0x6c mdp5_pipe_release+0x2c/0xd4 mdp5_plane_atomic_check+0x2ec/0x414 drm_atomic_helper_check_planes+0xd8/0x210 drm_atomic_helper_check+0x54/0xb0 ... ---[ fin del seguimiento 0000000000000000 ]--- drm_modeset_lock intenta bloquear un bloqueo disputado sin retroceso: drm_modeset_lock+0x148/0x154 mdp5_get_global_state+0x30/0x6c mdp5_pipe_release+0x2c/0xd4 mdp5_plane_atomic_check+0x290/0x414 drm_atomic_helper_check_planes+0xd8/0x210 drm_atomic_helper_check+0x54/0xb0 drm_atomic_check_only+0x4b0/0x8f4 drm_atomic_commit+0x68/0xe0 Patchwork: https://patchwork.freedesktop.org/patch/492701/"
    }
  ],
  "id": "CVE-2022-50173",
  "lastModified": "2025-06-18T13:47:40.833",
  "metrics": {},
  "published": "2025-06-18T11:15:47.660",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0b07f28c23ff50a7fa5dbc3f6b3b6bd53ac9fc70"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/247f2934324f9a18d18df24ea4bfcc7d4631d0ef"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2e34d6c8180a398de6448a93df25068bf3062042"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2fdf5a54ef9376ff69149a48c5616f1141008c9f"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/92ef86ab513593c6329d04146e61f9a670e72fc5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/bf386c955f35a0a01bef482b6035d40ff2f6cc75"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f4e3a8c7e890049e7ba2b49ad0315dae841dfa55"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.