CVE-2023-53329
Estado: ModificadaMedia (4.7)—
In the Linux kernel, the following vulnerability has been resolved:
KCSAN has discovered a data race in kernel/workqueue.c:2598:
Moving pwq->stats[PWQ_STAT_STARTED]++; before the line
resolves the data race without performance penalty.
KCSAN detected at least one additional data race:
in code:
trace_workqueue_execute_end(work, worker->current_func); → pwq->stats[PWQ_STAT_COM ---truncated---
Detalles técnicos trazas, registros y código del informe original
workqueue: fix data race with the pwq->stats[] increment
[ 1863.554079] ==================================================================
[ 1863.554118] BUG: KCSAN: data-race in process_one_work / process_one_work
[ 1863.554142] write to 0xffff963d99d79998 of 8 bytes by task 5394 on cpu 27:
[ 1863.554154] process_one_work (kernel/workqueue.c:2598)
[ 1863.554166] worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2752)
[ 1863.554177] kthread (kernel/kthread.c:389)
[ 1863.554186] ret_from_fork (arch/x86/kernel/process.c:145)
[ 1863.554197] ret_from_fork_asm (arch/x86/entry/entry_64.S:312)
[ 1863.554213] read to 0xffff963d99d79998 of 8 bytes by task 5450 on cpu 12:
[ 1863.554224] process_one_work (kernel/workqueue.c:2598)
[ 1863.554235] worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2752)
[ 1863.554247] kthread (kernel/kthread.c:389)
[ 1863.554255] ret_from_fork (arch/x86/kernel/process.c:145)
[ 1863.554266] ret_from_fork_asm (arch/x86/entry/entry_64.S:312)
[ 1863.554280] value changed: 0x0000000000001766 -> 0x000000000000176a
[ 1863.554295] Reported by Kernel Concurrency Sanitizer on:
[ 1863.554303] CPU: 12 PID: 5450 Comm: kworker/u64:1 Tainted: G L 6.5.0-rc6+ #44
[ 1863.554314] Hardware name: ASRock X670E PG Lightning/X670E PG Lightning, BIOS 1.21 04/26/2023
[ 1863.554322] Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]
[ 1863.554941] ==================================================================
lockdep_invariant_state(true);
→ pwq->stats[PWQ_STAT_STARTED]++;
trace_workqueue_execute_start(work);
worker->current_func(work);
raw_spin_unlock_irq(&pool->lock);
[ 157.834751] ==================================================================
[ 157.834770] BUG: KCSAN: data-race in process_one_work / process_one_work
[ 157.834793] write to 0xffff9934453f77a0 of 8 bytes by task 468 on cpu 29:
[ 157.834804] process_one_work (/home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2606)
[ 157.834815] worker_thread (/home/marvin/linux/kernel/linux_torvalds/./include/linux/list.h:292 /home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2752)
[ 157.834826] kthread (/home/marvin/linux/kernel/linux_torvalds/kernel/kthread.c:389)
[ 157.834834] ret_from_fork (/home/marvin/linux/kernel/linux_torvalds/arch/x86/kernel/process.c:145)
[ 157.834845] ret_from_fork_asm (/home/marvin/linux/kernel/linux_torvalds/arch/x86/entry/entry_64.S:312)
[ 157.834859] read to 0xffff9934453f77a0 of 8 bytes by task 214 on cpu 7:
[ 157.834868] process_one_work (/home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2606)
[ 157.834879] worker_thread (/home/marvin/linux/kernel/linux_torvalds/./include/linux/list.h:292 /home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2752)
[ 157.834890] kthread (/home/marvin/linux/kernel/linux_torvalds/kernel/kthread.c:389)
[ 157.834897] ret_from_fork (/home/marvin/linux/kernel/linux_torvalds/arch/x86/kernel/process.c:145)
[ 157.834907] ret_from_fork_asm (/home/marvin/linux/kernel/linux_torvalds/arch/x86/entry/entry_64.S:312)
[ 157.834920] value changed: 0x000000000000052a -> 0x0000000000000532
[ 157.834933] Reported by Kernel Concurrency Sanitizer on:
[ 157.834941] CPU: 7 PID: 214 Comm: kworker/u64:2 Tainted: G L 6.5.0-rc7-kcsan-00169-g81eaf55a60fc #4
[ 157.834951] Hardware name: ASRock X670E PG Lightning/X670E PG Lightning, BIOS 1.21 04/26/2023
[ 157.834958] Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]
[ 157.835567] ==================================================================CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 4.7
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.09%
- Percentil entre todas las CVEs puntuadas: 1
- Fecha de la puntuación: 4/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- CWE-362
- CWE-362
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2023-53329",
"cveTags": [],
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"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"id": "CVE-2023-53329",
"role": "CISA Coordinator",
"options": [
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"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-01-14T18:29:38.457870Z"
}
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"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "NONE"
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"impactScore": 3.6,
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"confidentialityImpact": "NONE"
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"affected": [
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"version": "6.5.3",
"versionType": "semver",
"lessThanOrEqual": "6.5.*"
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{
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"version": "6.6",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
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"programFiles": [
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"published": "2025-09-16T17:15:39.207",
"references": [
{
"url": "https://git.kernel.org/stable/c/ce55024f28589b0012fa2c6b5748ec5a180b7fbe",
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"tags": [
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nworkqueue: fix data race with the pwq->stats[] increment\n\nKCSAN has discovered a data race in kernel/workqueue.c:2598:\n\n[ 1863.554079] ==================================================================\n[ 1863.554118] BUG: KCSAN: data-race in process_one_work / process_one_work\n\n[ 1863.554142] write to 0xffff963d99d79998 of 8 bytes by task 5394 on cpu 27:\n[ 1863.554154] process_one_work (kernel/workqueue.c:2598)\n[ 1863.554166] worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2752)\n[ 1863.554177] kthread (kernel/kthread.c:389)\n[ 1863.554186] ret_from_fork (arch/x86/kernel/process.c:145)\n[ 1863.554197] ret_from_fork_asm (arch/x86/entry/entry_64.S:312)\n\n[ 1863.554213] read to 0xffff963d99d79998 of 8 bytes by task 5450 on cpu 12:\n[ 1863.554224] process_one_work (kernel/workqueue.c:2598)\n[ 1863.554235] worker_thread (./include/linux/list.h:292 kernel/workqueue.c:2752)\n[ 1863.554247] kthread (kernel/kthread.c:389)\n[ 1863.554255] ret_from_fork (arch/x86/kernel/process.c:145)\n[ 1863.554266] ret_from_fork_asm (arch/x86/entry/entry_64.S:312)\n\n[ 1863.554280] value changed: 0x0000000000001766 -> 0x000000000000176a\n\n[ 1863.554295] Reported by Kernel Concurrency Sanitizer on:\n[ 1863.554303] CPU: 12 PID: 5450 Comm: kworker/u64:1 Tainted: G L 6.5.0-rc6+ #44\n[ 1863.554314] Hardware name: ASRock X670E PG Lightning/X670E PG Lightning, BIOS 1.21 04/26/2023\n[ 1863.554322] Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]\n[ 1863.554941] ==================================================================\n\n lockdep_invariant_state(true);\n→ pwq->stats[PWQ_STAT_STARTED]++;\n trace_workqueue_execute_start(work);\n worker->current_func(work);\n\nMoving pwq->stats[PWQ_STAT_STARTED]++; before the line\n\n raw_spin_unlock_irq(&pool->lock);\n\nresolves the data race without performance penalty.\n\nKCSAN detected at least one additional data race:\n\n[ 157.834751] ==================================================================\n[ 157.834770] BUG: KCSAN: data-race in process_one_work / process_one_work\n\n[ 157.834793] write to 0xffff9934453f77a0 of 8 bytes by task 468 on cpu 29:\n[ 157.834804] process_one_work (/home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2606)\n[ 157.834815] worker_thread (/home/marvin/linux/kernel/linux_torvalds/./include/linux/list.h:292 /home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2752)\n[ 157.834826] kthread (/home/marvin/linux/kernel/linux_torvalds/kernel/kthread.c:389)\n[ 157.834834] ret_from_fork (/home/marvin/linux/kernel/linux_torvalds/arch/x86/kernel/process.c:145)\n[ 157.834845] ret_from_fork_asm (/home/marvin/linux/kernel/linux_torvalds/arch/x86/entry/entry_64.S:312)\n\n[ 157.834859] read to 0xffff9934453f77a0 of 8 bytes by task 214 on cpu 7:\n[ 157.834868] process_one_work (/home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2606)\n[ 157.834879] worker_thread (/home/marvin/linux/kernel/linux_torvalds/./include/linux/list.h:292 /home/marvin/linux/kernel/linux_torvalds/kernel/workqueue.c:2752)\n[ 157.834890] kthread (/home/marvin/linux/kernel/linux_torvalds/kernel/kthread.c:389)\n[ 157.834897] ret_from_fork (/home/marvin/linux/kernel/linux_torvalds/arch/x86/kernel/process.c:145)\n[ 157.834907] ret_from_fork_asm (/home/marvin/linux/kernel/linux_torvalds/arch/x86/entry/entry_64.S:312)\n\n[ 157.834920] value changed: 0x000000000000052a -> 0x0000000000000532\n\n[ 157.834933] Reported by Kernel Concurrency Sanitizer on:\n[ 157.834941] CPU: 7 PID: 214 Comm: kworker/u64:2 Tainted: G L 6.5.0-rc7-kcsan-00169-g81eaf55a60fc #4\n[ 157.834951] Hardware name: ASRock X670E PG Lightning/X670E PG Lightning, BIOS 1.21 04/26/2023\n[ 157.834958] Workqueue: btrfs-endio btrfs_end_bio_work [btrfs]\n[ 157.835567] ==================================================================\n\nin code:\n\n trace_workqueue_execute_end(work, worker->current_func);\n→ pwq->stats[PWQ_STAT_COM\n---truncated---"
}
],
"lastModified": "2026-06-17T06:44:54.433",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "880C803A-BEAE-4DA0-8A59-AC023F7B4EE3",
"versionEndExcluding": "6.5.3",
"versionStartIncluding": "6.5"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}