ghsa-2f2j-g35j-24qp
Vulnerability from github
Published
2025-12-16 15:30
Modified
2025-12-16 15:30
Details

In the Linux kernel, the following vulnerability has been resolved:

drm/msm: Fix GEM free for imported dma-bufs

Imported dma-bufs also have obj->resv != &obj->_resv. So we should check both this condition in addition to flags for handling the _NO_SHARE case.

Fixes this splat that was reported with IRIS video playback:

------------[ cut here ]------------
WARNING: CPU: 3 PID: 2040 at drivers/gpu/drm/msm/msm_gem.c:1127 msm_gem_free_object+0x1f8/0x264 [msm]
CPU: 3 UID: 1000 PID: 2040 Comm: .gnome-shell-wr Not tainted 6.17.0-rc7 #1 PREEMPT
pstate: 81400005 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
pc : msm_gem_free_object+0x1f8/0x264 [msm]
lr : msm_gem_free_object+0x138/0x264 [msm]
sp : ffff800092a1bb30
x29: ffff800092a1bb80 x28: ffff800092a1bce8 x27: ffffbc702dbdbe08
x26: 0000000000000008 x25: 0000000000000009 x24: 00000000000000a6
x23: ffff00083c72f850 x22: ffff00083c72f868 x21: ffff00087e69f200
x20: ffff00087e69f330 x19: ffff00084d157ae0 x18: 0000000000000000
x17: 0000000000000000 x16: ffffbc704bd46b80 x15: 0000ffffd0959540
x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000
x11: ffffbc702e6cdb48 x10: 0000000000000000 x9 : 000000000000003f
x8 : ffff800092a1ba90 x7 : 0000000000000000 x6 : 0000000000000020
x5 : ffffbc704bd46c40 x4 : fffffdffe102cf60 x3 : 0000000000400032
x2 : 0000000000020000 x1 : ffff00087e6978e8 x0 : ffff00087e6977e8
Call trace:
 msm_gem_free_object+0x1f8/0x264 [msm] (P)
 drm_gem_object_free+0x1c/0x30 [drm]
 drm_gem_object_handle_put_unlocked+0x138/0x150 [drm]
 drm_gem_object_release_handle+0x5c/0xcc [drm]
 drm_gem_handle_delete+0x68/0xbc [drm]
 drm_gem_close_ioctl+0x34/0x40 [drm]
 drm_ioctl_kernel+0xc0/0x130 [drm]
 drm_ioctl+0x360/0x4e0 [drm]
 __arm64_sys_ioctl+0xac/0x104
 invoke_syscall+0x48/0x104
 el0_svc_common.constprop.0+0x40/0xe0
 do_el0_svc+0x1c/0x28
 el0_svc+0x34/0xec
 el0t_64_sync_handler+0xa0/0xe4
 el0t_64_sync+0x198/0x19c
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------

Patchwork: https://patchwork.freedesktop.org/patch/676273/

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-68189"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-16T14:15:51Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm: Fix GEM free for imported dma-bufs\n\nImported dma-bufs also have obj-\u003eresv != \u0026obj-\u003e_resv.  So we should\ncheck both this condition in addition to flags for handling the\n_NO_SHARE case.\n\nFixes this splat that was reported with IRIS video playback:\n\n    ------------[ cut here ]------------\n    WARNING: CPU: 3 PID: 2040 at drivers/gpu/drm/msm/msm_gem.c:1127 msm_gem_free_object+0x1f8/0x264 [msm]\n    CPU: 3 UID: 1000 PID: 2040 Comm: .gnome-shell-wr Not tainted 6.17.0-rc7 #1 PREEMPT\n    pstate: 81400005 (Nzcv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n    pc : msm_gem_free_object+0x1f8/0x264 [msm]\n    lr : msm_gem_free_object+0x138/0x264 [msm]\n    sp : ffff800092a1bb30\n    x29: ffff800092a1bb80 x28: ffff800092a1bce8 x27: ffffbc702dbdbe08\n    x26: 0000000000000008 x25: 0000000000000009 x24: 00000000000000a6\n    x23: ffff00083c72f850 x22: ffff00083c72f868 x21: ffff00087e69f200\n    x20: ffff00087e69f330 x19: ffff00084d157ae0 x18: 0000000000000000\n    x17: 0000000000000000 x16: ffffbc704bd46b80 x15: 0000ffffd0959540\n    x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000\n    x11: ffffbc702e6cdb48 x10: 0000000000000000 x9 : 000000000000003f\n    x8 : ffff800092a1ba90 x7 : 0000000000000000 x6 : 0000000000000020\n    x5 : ffffbc704bd46c40 x4 : fffffdffe102cf60 x3 : 0000000000400032\n    x2 : 0000000000020000 x1 : ffff00087e6978e8 x0 : ffff00087e6977e8\n    Call trace:\n     msm_gem_free_object+0x1f8/0x264 [msm] (P)\n     drm_gem_object_free+0x1c/0x30 [drm]\n     drm_gem_object_handle_put_unlocked+0x138/0x150 [drm]\n     drm_gem_object_release_handle+0x5c/0xcc [drm]\n     drm_gem_handle_delete+0x68/0xbc [drm]\n     drm_gem_close_ioctl+0x34/0x40 [drm]\n     drm_ioctl_kernel+0xc0/0x130 [drm]\n     drm_ioctl+0x360/0x4e0 [drm]\n     __arm64_sys_ioctl+0xac/0x104\n     invoke_syscall+0x48/0x104\n     el0_svc_common.constprop.0+0x40/0xe0\n     do_el0_svc+0x1c/0x28\n     el0_svc+0x34/0xec\n     el0t_64_sync_handler+0xa0/0xe4\n     el0t_64_sync+0x198/0x19c\n    ---[ end trace 0000000000000000 ]---\n    ------------[ cut here ]------------\n\nPatchwork: https://patchwork.freedesktop.org/patch/676273/",
  "id": "GHSA-2f2j-g35j-24qp",
  "modified": "2025-12-16T15:30:44Z",
  "published": "2025-12-16T15:30:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68189"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9674c4cb2fe62727a2e4d3f66065ab949dfa61be"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c34e08ba6c0037a72a7433741225b020c989e4ae"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • 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.