ghsa-68j8-v58c-g6h7
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
PCI/DOE: Fix destroy_work_on_stack() race
The following debug object splat was observed in testing:
ODEBUG: free active (active state 0) object: 0000000097d23782 object type: work_struct hint: doe_statemachine_work+0x0/0x510 WARNING: CPU: 1 PID: 71 at lib/debugobjects.c:514 debug_print_object+0x7d/0xb0 ... Workqueue: pci 0000:36:00.0 DOE [1 doe_statemachine_work RIP: 0010:debug_print_object+0x7d/0xb0 ... Call Trace: ? debug_print_object+0x7d/0xb0 ? __pfx_doe_statemachine_work+0x10/0x10 debug_object_free.part.0+0x11b/0x150 doe_statemachine_work+0x45e/0x510 process_one_work+0x1d4/0x3c0
This occurs because destroy_work_on_stack() was called after signaling the completion in the calling thread. This creates a race between destroy_work_on_stack() and the task->work struct going out of scope in pci_doe().
Signal the work complete after destroying the work struct. This is safe because signal_task_complete() is the final thing the work item does and the workqueue code is careful not to access the work struct after.
{
"affected": [],
"aliases": [
"CVE-2023-54235"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-30T13:16:11Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI/DOE: Fix destroy_work_on_stack() race\n\nThe following debug object splat was observed in testing:\n\n ODEBUG: free active (active state 0) object: 0000000097d23782 object type: work_struct hint: doe_statemachine_work+0x0/0x510\n WARNING: CPU: 1 PID: 71 at lib/debugobjects.c:514 debug_print_object+0x7d/0xb0\n ...\n Workqueue: pci 0000:36:00.0 DOE [1 doe_statemachine_work\n RIP: 0010:debug_print_object+0x7d/0xb0\n ...\n Call Trace:\n ? debug_print_object+0x7d/0xb0\n ? __pfx_doe_statemachine_work+0x10/0x10\n debug_object_free.part.0+0x11b/0x150\n doe_statemachine_work+0x45e/0x510\n process_one_work+0x1d4/0x3c0\n\nThis occurs because destroy_work_on_stack() was called after signaling\nthe completion in the calling thread. This creates a race between\ndestroy_work_on_stack() and the task-\u003ework struct going out of scope in\npci_doe().\n\nSignal the work complete after destroying the work struct. This is safe\nbecause signal_task_complete() is the final thing the work item does and\nthe workqueue code is careful not to access the work struct after.",
"id": "GHSA-68j8-v58c-g6h7",
"modified": "2025-12-30T15:30:32Z",
"published": "2025-12-30T15:30:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54235"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/19cf3ba16dcc2ef059dcf010072d4f96d76486e0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c4f9c0a3a6df143f2e1092823b7fa9e07d6ab57f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d96799ee3b78962c80e4b6653734f488f999ca09"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e3a3a097eaebaf234a482b4d2f9f18fe989208c1"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- 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.