GHSA-WVX2-MP64-Q5WJ

Vulnerability from github – Published: 2026-04-24 15:32 – Updated: 2026-04-24 15:32
VLAI?
Details

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

drm/i915/gt: Check set_default_submission() before deferencing

When the i915 driver firmware binaries are not present, the set_default_submission pointer is not set. This pointer is dereferenced during suspend anyways.

Add a check to make sure it is set before dereferencing.

[ 23.289926] PM: suspend entry (deep) [ 23.293558] Filesystems sync: 0.000 seconds [ 23.298010] Freezing user space processes [ 23.302771] Freezing user space processes completed (elapsed 0.000 seconds) [ 23.309766] OOM killer disabled. [ 23.313027] Freezing remaining freezable tasks [ 23.318540] Freezing remaining freezable tasks completed (elapsed 0.001 seconds) [ 23.342038] serial 00:05: disabled [ 23.345719] serial 00:02: disabled [ 23.349342] serial 00:01: disabled [ 23.353782] sd 0:0:0:0: [sda] Synchronizing SCSI cache [ 23.358993] sd 1:0:0:0: [sdb] Synchronizing SCSI cache [ 23.361635] ata1.00: Entering standby power mode [ 23.368863] ata2.00: Entering standby power mode [ 23.445187] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 23.452194] #PF: supervisor instruction fetch in kernel mode [ 23.457896] #PF: error_code(0x0010) - not-present page [ 23.463065] PGD 0 P4D 0 [ 23.465640] Oops: Oops: 0010 [#1] SMP NOPTI [ 23.469869] CPU: 8 UID: 0 PID: 211 Comm: kworker/u48:18 Tainted: G S W 6.19.0-rc4-00020-gf0b9d8eb98df #10 PREEMPT(voluntary) [ 23.482512] Tainted: [S]=CPU_OUT_OF_SPEC, [W]=WARN [ 23.496511] Workqueue: async async_run_entry_fn [ 23.501087] RIP: 0010:0x0 [ 23.503755] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 23.510324] RSP: 0018:ffffb4a60065fca8 EFLAGS: 00010246 [ 23.515592] RAX: 0000000000000000 RBX: ffff9f428290e000 RCX: 000000000000000f [ 23.522765] RDX: 0000000000000000 RSI: 0000000000000282 RDI: ffff9f428290e000 [ 23.529937] RBP: ffff9f4282907070 R08: ffff9f4281130428 R09: 00000000ffffffff [ 23.537111] R10: 0000000000000000 R11: 0000000000000001 R12: ffff9f42829070f8 [ 23.544284] R13: ffff9f4282906028 R14: ffff9f4282900000 R15: ffff9f4282906b68 [ 23.551457] FS: 0000000000000000(0000) GS:ffff9f466b2cf000(0000) knlGS:0000000000000000 [ 23.559588] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.565365] CR2: ffffffffffffffd6 CR3: 000000031c230001 CR4: 0000000000f70ef0 [ 23.572539] PKRU: 55555554 [ 23.575281] Call Trace: [ 23.577770] [ 23.579905] intel_engines_reset_default_submission+0x42/0x60 [ 23.585695] __intel_gt_unset_wedged+0x191/0x200 [ 23.590360] intel_gt_unset_wedged+0x20/0x40 [ 23.594675] gt_sanitize+0x15e/0x170 [ 23.598290] i915_gem_suspend_late+0x6b/0x180 [ 23.602692] i915_drm_suspend_late+0x35/0xf0 [ 23.607008] ? __pfx_pci_pm_suspend_late+0x10/0x10 [ 23.611843] dpm_run_callback+0x78/0x1c0 [ 23.615817] device_suspend_late+0xde/0x2e0 [ 23.620037] async_suspend_late+0x18/0x30 [ 23.624082] async_run_entry_fn+0x25/0xa0 [ 23.628129] process_one_work+0x15b/0x380 [ 23.632182] worker_thread+0x2a5/0x3c0 [ 23.635973] ? __pfx_worker_thread+0x10/0x10 [ 23.640279] kthread+0xf6/0x1f0 [ 23.643464] ? __pfx_kthread+0x10/0x10 [ 23.647263] ? __pfx_kthread+0x10/0x10 [ 23.651045] ret_from_fork+0x131/0x190 [ 23.654837] ? __pfx_kthread+0x10/0x10 [ 23.658634] ret_from_fork_asm+0x1a/0x30 [ 23.662597] [ 23.664826] Modules linked in: [ 23.667914] CR2: 0000000000000000 [ 23.671271] ------------[ cut here ]------------

(cherry picked from commit daa199abc3d3d1740c9e3a2c3e9216ae5b447cad)

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-31540"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-04-24T15:16:27Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915/gt: Check set_default_submission() before deferencing\n\nWhen the i915 driver firmware binaries are not present, the\nset_default_submission pointer is not set. This pointer is\ndereferenced during suspend anyways.\n\nAdd a check to make sure it is set before dereferencing.\n\n[   23.289926] PM: suspend entry (deep)\n[   23.293558] Filesystems sync: 0.000 seconds\n[   23.298010] Freezing user space processes\n[   23.302771] Freezing user space processes completed (elapsed 0.000 seconds)\n[   23.309766] OOM killer disabled.\n[   23.313027] Freezing remaining freezable tasks\n[   23.318540] Freezing remaining freezable tasks completed (elapsed 0.001 seconds)\n[   23.342038] serial 00:05: disabled\n[   23.345719] serial 00:02: disabled\n[   23.349342] serial 00:01: disabled\n[   23.353782] sd 0:0:0:0: [sda] Synchronizing SCSI cache\n[   23.358993] sd 1:0:0:0: [sdb] Synchronizing SCSI cache\n[   23.361635] ata1.00: Entering standby power mode\n[   23.368863] ata2.00: Entering standby power mode\n[   23.445187] BUG: kernel NULL pointer dereference, address: 0000000000000000\n[   23.452194] #PF: supervisor instruction fetch in kernel mode\n[   23.457896] #PF: error_code(0x0010) - not-present page\n[   23.463065] PGD 0 P4D 0\n[   23.465640] Oops: Oops: 0010 [#1] SMP NOPTI\n[   23.469869] CPU: 8 UID: 0 PID: 211 Comm: kworker/u48:18 Tainted: G S      W           6.19.0-rc4-00020-gf0b9d8eb98df #10 PREEMPT(voluntary)\n[   23.482512] Tainted: [S]=CPU_OUT_OF_SPEC, [W]=WARN\n[   23.496511] Workqueue: async async_run_entry_fn\n[   23.501087] RIP: 0010:0x0\n[   23.503755] Code: Unable to access opcode bytes at 0xffffffffffffffd6.\n[   23.510324] RSP: 0018:ffffb4a60065fca8 EFLAGS: 00010246\n[   23.515592] RAX: 0000000000000000 RBX: ffff9f428290e000 RCX: 000000000000000f\n[   23.522765] RDX: 0000000000000000 RSI: 0000000000000282 RDI: ffff9f428290e000\n[   23.529937] RBP: ffff9f4282907070 R08: ffff9f4281130428 R09: 00000000ffffffff\n[   23.537111] R10: 0000000000000000 R11: 0000000000000001 R12: ffff9f42829070f8\n[   23.544284] R13: ffff9f4282906028 R14: ffff9f4282900000 R15: ffff9f4282906b68\n[   23.551457] FS:  0000000000000000(0000) GS:ffff9f466b2cf000(0000) knlGS:0000000000000000\n[   23.559588] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   23.565365] CR2: ffffffffffffffd6 CR3: 000000031c230001 CR4: 0000000000f70ef0\n[   23.572539] PKRU: 55555554\n[   23.575281] Call Trace:\n[   23.577770]  \u003cTASK\u003e\n[   23.579905]  intel_engines_reset_default_submission+0x42/0x60\n[   23.585695]  __intel_gt_unset_wedged+0x191/0x200\n[   23.590360]  intel_gt_unset_wedged+0x20/0x40\n[   23.594675]  gt_sanitize+0x15e/0x170\n[   23.598290]  i915_gem_suspend_late+0x6b/0x180\n[   23.602692]  i915_drm_suspend_late+0x35/0xf0\n[   23.607008]  ? __pfx_pci_pm_suspend_late+0x10/0x10\n[   23.611843]  dpm_run_callback+0x78/0x1c0\n[   23.615817]  device_suspend_late+0xde/0x2e0\n[   23.620037]  async_suspend_late+0x18/0x30\n[   23.624082]  async_run_entry_fn+0x25/0xa0\n[   23.628129]  process_one_work+0x15b/0x380\n[   23.632182]  worker_thread+0x2a5/0x3c0\n[   23.635973]  ? __pfx_worker_thread+0x10/0x10\n[   23.640279]  kthread+0xf6/0x1f0\n[   23.643464]  ? __pfx_kthread+0x10/0x10\n[   23.647263]  ? __pfx_kthread+0x10/0x10\n[   23.651045]  ret_from_fork+0x131/0x190\n[   23.654837]  ? __pfx_kthread+0x10/0x10\n[   23.658634]  ret_from_fork_asm+0x1a/0x30\n[   23.662597]  \u003c/TASK\u003e\n[   23.664826] Modules linked in:\n[   23.667914] CR2: 0000000000000000\n[   23.671271] ------------[ cut here ]------------\n\n(cherry picked from commit daa199abc3d3d1740c9e3a2c3e9216ae5b447cad)",
  "id": "GHSA-wvx2-mp64-q5wj",
  "modified": "2026-04-24T15:32:33Z",
  "published": "2026-04-24T15:32:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31540"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0162ab3220bac870e43e229e6e3024d1a21c3f26"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1a16150729db8d997e39519f9d58e6b435c4c087"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2e20a886b443a71b573ceaed3ca7053d15380916"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cf4b224ffb9a58181be32b64130fc36cf59c3192"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/da6552d67012a1cf0585f2eb401d0c4abcf108c9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db8b1bebe81ffb410ddd746b6869f72e22420850"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df1f4a7d9cf689b4e96c95255228896505f44c31"
    }
  ],
  "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 observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.