CVE-2023-54235
Full vulnerability record from the local CVENow database.
Description
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.
Severity
Not scored
CVSS score
Not available
Vulnerability status
Deferred
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-12-30 13:16:11.953000
Last modified
2026-10-28 19:10:00.193000
View original CVE JSON
{
"id": "CVE-2023-54235",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-12-30T13:16:11.953",
"lastModified": "2026-10-28T19:10:00.193",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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->work 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."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nPCI/DOE: Corrección de la condición de carrera de destroy_work_on_stack()\n\nSe observó el siguiente volcado de objeto de depuración durante las pruebas:\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\nEsto ocurre porque se llamó a destroy_work_on_stack() después de señalar la finalización en el hilo llamador. Esto crea una condición de carrera entre destroy_work_on_stack() y la estructura task -> work saliendo de ámbito en pci_doe().\n\nSeñalizar la finalización del trabajo después de destruir la estructura de trabajo. Esto es seguro porque signal_task_complete() es lo último que hace el elemento de trabajo y el código de la cola de trabajo tiene cuidado de no acceder a la estructura de trabajo después."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"drivers/pci/doe.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "2a0e0f4773fe8032fb17e56f897bee32ce3cdc2b",
"lessThan": "d96799ee3b78962c80e4b6653734f488f999ca09",
"versionType": "git",
"status": "affected"
},
{
"version": "abf04be0e7071f2bcd39bf97ba407e7d4439785e",
"lessThan": "c4f9c0a3a6df143f2e1092823b7fa9e07d6ab57f",
"versionType": "git",
"status": "affected"
},
{
"version": "abf04be0e7071f2bcd39bf97ba407e7d4439785e",
"lessThan": "19cf3ba16dcc2ef059dcf010072d4f96d76486e0",
"versionType": "git",
"status": "affected"
},
{
"version": "abf04be0e7071f2bcd39bf97ba407e7d4439785e",
"lessThan": "e3a3a097eaebaf234a482b4d2f9f18fe989208c1",
"versionType": "git",
"status": "affected"
},
{
"version": "95628b830952943631d3d74f73f431f501c5d6f5",
"versionType": "git",
"status": "affected"
},
{
"version": "6.1.24",
"lessThan": "6.1.53",
"versionType": "semver",
"status": "affected"
},
{
"version": "6.2.11",
"lessThan": "6.3",
"versionType": "semver",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"drivers/pci/doe.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "6.3",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.3",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.53",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.4.16",
"lessThanOrEqual": "6.4.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.5.3",
"lessThanOrEqual": "6.5.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/19cf3ba16dcc2ef059dcf010072d4f96d76486e0",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/c4f9c0a3a6df143f2e1092823b7fa9e07d6ab57f",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/d96799ee3b78962c80e4b6653734f488f999ca09",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/e3a3a097eaebaf234a482b4d2f9f18fe989208c1",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}