FKIE_CVE-2023-54246
Vulnerability from fkie_nvd - Published: 2025-12-30 13:16 - Updated: 2026-06-17 06:47
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
rcuscale: Move rcu_scale_writer() schedule_timeout_uninterruptible() to _idle()
The rcuscale.holdoff module parameter can be used to delay the start
of rcu_scale_writer() kthread. However, the hung-task timeout will
trigger when the timeout specified by rcuscale.holdoff is greater than
hung_task_timeout_secs:
runqemu kvm nographic slirp qemuparams="-smp 4 -m 2048M"
bootparams="rcuscale.shutdown=0 rcuscale.holdoff=300"
[ 247.071753] INFO: task rcu_scale_write:59 blocked for more than 122 seconds.
[ 247.072529] Not tainted 6.4.0-rc1-00134-gb9ed6de8d4ff #7
[ 247.073400] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 247.074331] task:rcu_scale_write state:D stack:30144 pid:59 ppid:2 flags:0x00004000
[ 247.075346] Call Trace:
[ 247.075660] <TASK>
[ 247.075965] __schedule+0x635/0x1280
[ 247.076448] ? __pfx___schedule+0x10/0x10
[ 247.076967] ? schedule_timeout+0x2dc/0x4d0
[ 247.077471] ? __pfx_lock_release+0x10/0x10
[ 247.078018] ? enqueue_timer+0xe2/0x220
[ 247.078522] schedule+0x84/0x120
[ 247.078957] schedule_timeout+0x2e1/0x4d0
[ 247.079447] ? __pfx_schedule_timeout+0x10/0x10
[ 247.080032] ? __pfx_rcu_scale_writer+0x10/0x10
[ 247.080591] ? __pfx_process_timeout+0x10/0x10
[ 247.081163] ? __pfx_sched_set_fifo_low+0x10/0x10
[ 247.081760] ? __pfx_rcu_scale_writer+0x10/0x10
[ 247.082287] rcu_scale_writer+0x6b1/0x7f0
[ 247.082773] ? mark_held_locks+0x29/0xa0
[ 247.083252] ? __pfx_rcu_scale_writer+0x10/0x10
[ 247.083865] ? __pfx_rcu_scale_writer+0x10/0x10
[ 247.084412] kthread+0x179/0x1c0
[ 247.084759] ? __pfx_kthread+0x10/0x10
[ 247.085098] ret_from_fork+0x2c/0x50
[ 247.085433] </TASK>
This commit therefore replaces schedule_timeout_uninterruptible() with
schedule_timeout_idle().
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"kernel/rcu/rcuscale.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "55887adc76e19aec9763186e2c1d0a3481d20e96",
"status": "affected",
"version": "df37e66bfdbb57e8cae7dbf39a0c66b1b8701338",
"versionType": "git"
},
{
"lessThan": "4f03fba096bfded90e0d71eba8839a46922164d1",
"status": "affected",
"version": "df37e66bfdbb57e8cae7dbf39a0c66b1b8701338",
"versionType": "git"
},
{
"lessThan": "83ed0cdb6ae0383dd14b02375c353773836884ed",
"status": "affected",
"version": "df37e66bfdbb57e8cae7dbf39a0c66b1b8701338",
"versionType": "git"
},
{
"lessThan": "9416dccb31fdb190d25d57e97674f232651f6560",
"status": "affected",
"version": "df37e66bfdbb57e8cae7dbf39a0c66b1b8701338",
"versionType": "git"
},
{
"lessThan": "e60c122a1614b4f65b29a7bef9d83b9fd30e937a",
"status": "affected",
"version": "df37e66bfdbb57e8cae7dbf39a0c66b1b8701338",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"kernel/rcu/rcuscale.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.7"
},
{
"lessThan": "4.7",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.197",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.133",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.55",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.5.*",
"status": "unaffected",
"version": "6.5.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.6",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrcuscale: Move rcu_scale_writer() schedule_timeout_uninterruptible() to _idle()\n\nThe rcuscale.holdoff module parameter can be used to delay the start\nof rcu_scale_writer() kthread. However, the hung-task timeout will\ntrigger when the timeout specified by rcuscale.holdoff is greater than\nhung_task_timeout_secs:\n\nrunqemu kvm nographic slirp qemuparams=\"-smp 4 -m 2048M\"\nbootparams=\"rcuscale.shutdown=0 rcuscale.holdoff=300\"\n\n[ 247.071753] INFO: task rcu_scale_write:59 blocked for more than 122 seconds.\n[ 247.072529] Not tainted 6.4.0-rc1-00134-gb9ed6de8d4ff #7\n[ 247.073400] \"echo 0 \u003e /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\n[ 247.074331] task:rcu_scale_write state:D stack:30144 pid:59 ppid:2 flags:0x00004000\n[ 247.075346] Call Trace:\n[ 247.075660] \u003cTASK\u003e\n[ 247.075965] __schedule+0x635/0x1280\n[ 247.076448] ? __pfx___schedule+0x10/0x10\n[ 247.076967] ? schedule_timeout+0x2dc/0x4d0\n[ 247.077471] ? __pfx_lock_release+0x10/0x10\n[ 247.078018] ? enqueue_timer+0xe2/0x220\n[ 247.078522] schedule+0x84/0x120\n[ 247.078957] schedule_timeout+0x2e1/0x4d0\n[ 247.079447] ? __pfx_schedule_timeout+0x10/0x10\n[ 247.080032] ? __pfx_rcu_scale_writer+0x10/0x10\n[ 247.080591] ? __pfx_process_timeout+0x10/0x10\n[ 247.081163] ? __pfx_sched_set_fifo_low+0x10/0x10\n[ 247.081760] ? __pfx_rcu_scale_writer+0x10/0x10\n[ 247.082287] rcu_scale_writer+0x6b1/0x7f0\n[ 247.082773] ? mark_held_locks+0x29/0xa0\n[ 247.083252] ? __pfx_rcu_scale_writer+0x10/0x10\n[ 247.083865] ? __pfx_rcu_scale_writer+0x10/0x10\n[ 247.084412] kthread+0x179/0x1c0\n[ 247.084759] ? __pfx_kthread+0x10/0x10\n[ 247.085098] ret_from_fork+0x2c/0x50\n[ 247.085433] \u003c/TASK\u003e\n\nThis commit therefore replaces schedule_timeout_uninterruptible() with\nschedule_timeout_idle()."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nrcuscale: Mover rcu_scale_writer() schedule_timeout_uninterruptible() a _idle()\n\nEl par\u00e1metro del m\u00f3dulo rcuscale.holdoff puede ser usado para retrasar el inicio del kthread rcu_scale_writer(). Sin embargo, el tiempo de espera de tarea colgada se activar\u00e1 cuando el tiempo de espera especificado por rcuscale.holdoff sea mayor que hung_task_timeout_secs:\n\nrunqemu kvm nographic slirp qemuparams=\"-smp 4 -m 2048M\"\nbootparams=\"rcuscale.shutdown=0 rcuscale.holdoff=300\"\n\n[ 247.071753] INFO: tarea rcu_scale_write:59 bloqueada por m\u00e1s de 122 segundos.\n[ 247.072529] No contaminado 6.4.0-rc1-00134-gb9ed6de8d4ff #7\n[ 247.073400] \u0027echo 0 \u0026gt; /proc/sys/kernel/hung_task_timeout_secs\u0027 deshabilita este mensaje.\n[ 247.074331] tarea:rcu_scale_write estado:D pila:30144 pid:59 ppid:2 flags:0x00004000\n[ 247.075346] Rastreo de Llamada:\n[ 247.075660] \n[ 247.075965] __schedule+0x635/0x1280\n[ 247.076448] ? __pfx___schedule+0x10/0x10\n[ 247.076967] ? schedule_timeout+0x2dc/0x4d0\n[ 247.077471] ? __pfx_lock_release+0x10/0x10\n[ 247.078018] ? enqueue_timer+0xe2/0x220\n[ 247.078522] schedule+0x84/0x120\n[ 247.078957] schedule_timeout+0x2e1/0x4d0\n[ 247.079447] ? __pfx_schedule_timeout+0x10/0x10\n[ 247.080032] ? __pfx_rcu_scale_writer+0x10/0x10\n[ 247.080591] ? __pfx_process_timeout+0x10/0x10\n[ 247.081163] ? __pfx_sched_set_fifo_low+0x10/0x10\n[ 247.081760] ? __pfx_rcu_scale_writer+0x10/0x10\n[ 247.082287] rcu_scale_writer+0x6b1/0x7f0\n[ 247.082773] ? mark_held_locks+0x29/0xa0\n[ 247.083252] ? __pfx_rcu_scale_writer+0x10/0x10\n[ 247.083865] ? __pfx_rcu_scale_writer+0x10/0x10\n[ 247.084412] kthread+0x179/0x1c0\n[ 247.084759] ? __pfx_kthread+0x10/0x10\n[ 247.085098] ret_from_fork+0x2c/0x50\n[ 247.085433] \n\nEste commit por lo tanto reemplaza schedule_timeout_uninterruptible() con schedule_timeout_idle()."
}
],
"id": "CVE-2023-54246",
"lastModified": "2026-06-17T06:47:05.173",
"metrics": {},
"published": "2025-12-30T13:16:13.210",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/4f03fba096bfded90e0d71eba8839a46922164d1"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/55887adc76e19aec9763186e2c1d0a3481d20e96"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/83ed0cdb6ae0383dd14b02375c353773836884ed"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/9416dccb31fdb190d25d57e97674f232651f6560"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/e60c122a1614b4f65b29a7bef9d83b9fd30e937a"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Deferred"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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