FKIE_CVE-2023-54283
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:
bpf: Address KCSAN report on bpf_lru_list
KCSAN reported a data-race when accessing node->ref.
Although node->ref does not have to be accurate,
take this chance to use a more common READ_ONCE() and WRITE_ONCE()
pattern instead of data_race().
There is an existing bpf_lru_node_is_ref() and bpf_lru_node_set_ref().
This patch also adds bpf_lru_node_clear_ref() to do the
WRITE_ONCE(node->ref, 0) also.
==================================================================
BUG: KCSAN: data-race in __bpf_lru_list_rotate / __htab_lru_percpu_map_update_elem
write to 0xffff888137038deb of 1 bytes by task 11240 on cpu 1:
__bpf_lru_node_move kernel/bpf/bpf_lru_list.c:113 [inline]
__bpf_lru_list_rotate_active kernel/bpf/bpf_lru_list.c:149 [inline]
__bpf_lru_list_rotate+0x1bf/0x750 kernel/bpf/bpf_lru_list.c:240
bpf_lru_list_pop_free_to_local kernel/bpf/bpf_lru_list.c:329 [inline]
bpf_common_lru_pop_free kernel/bpf/bpf_lru_list.c:447 [inline]
bpf_lru_pop_free+0x638/0xe20 kernel/bpf/bpf_lru_list.c:499
prealloc_lru_pop kernel/bpf/hashtab.c:290 [inline]
__htab_lru_percpu_map_update_elem+0xe7/0x820 kernel/bpf/hashtab.c:1316
bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2313
bpf_map_update_value+0x2a9/0x370 kernel/bpf/syscall.c:200
generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1687
bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4534
__sys_bpf+0x338/0x810
__do_sys_bpf kernel/bpf/syscall.c:5096 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5094 [inline]
__x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5094
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
read to 0xffff888137038deb of 1 bytes by task 11241 on cpu 0:
bpf_lru_node_set_ref kernel/bpf/bpf_lru_list.h:70 [inline]
__htab_lru_percpu_map_update_elem+0x2f1/0x820 kernel/bpf/hashtab.c:1332
bpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2313
bpf_map_update_value+0x2a9/0x370 kernel/bpf/syscall.c:200
generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1687
bpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4534
__sys_bpf+0x338/0x810
__do_sys_bpf kernel/bpf/syscall.c:5096 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5094 [inline]
__x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5094
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
value changed: 0x01 -> 0x00
Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 11241 Comm: syz-executor.3 Not tainted 6.3.0-rc7-syzkaller-00136-g6a66fdd29ea1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
==================================================================
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"kernel/bpf/bpf_lru_list.c",
"kernel/bpf/bpf_lru_list.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "6eaef1b1d8720053eb1b6e7a3ff8b2ff0716bb90",
"status": "affected",
"version": "3a08c2fd763450a927d1130de078d6f9e74944fb",
"versionType": "git"
},
{
"lessThan": "a89d14410ea0352420f03cddc67e0002dcc8f9a5",
"status": "affected",
"version": "3a08c2fd763450a927d1130de078d6f9e74944fb",
"versionType": "git"
},
{
"lessThan": "e09a285ea1e859d4cc6cb689d8d5d7c1f7c7c0d5",
"status": "affected",
"version": "3a08c2fd763450a927d1130de078d6f9e74944fb",
"versionType": "git"
},
{
"lessThan": "b6d9a4062c944ad095b34dc112bf646a84156f60",
"status": "affected",
"version": "3a08c2fd763450a927d1130de078d6f9e74944fb",
"versionType": "git"
},
{
"lessThan": "819ca25444b377935faa2dbb0aa3547519b5c80f",
"status": "affected",
"version": "3a08c2fd763450a927d1130de078d6f9e74944fb",
"versionType": "git"
},
{
"lessThan": "c006fe361cfd947f51a56793deddf891e5cbfef8",
"status": "affected",
"version": "3a08c2fd763450a927d1130de078d6f9e74944fb",
"versionType": "git"
},
{
"lessThan": "6e5e83b56f50fbd1c8f7dca7df7d72c67be25571",
"status": "affected",
"version": "3a08c2fd763450a927d1130de078d6f9e74944fb",
"versionType": "git"
},
{
"lessThan": "ee9fd0ac3017c4313be91a220a9ac4c99dde7ad4",
"status": "affected",
"version": "3a08c2fd763450a927d1130de078d6f9e74944fb",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"kernel/bpf/bpf_lru_list.c",
"kernel/bpf/bpf_lru_list.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "4.10"
},
{
"lessThan": "4.10",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"version": "4.14.322",
"versionType": "semver"
},
{
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"version": "4.19.291",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"version": "5.4.251",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.188",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.150",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.42",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.4.*",
"status": "unaffected",
"version": "6.4.7",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.5",
"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\nbpf: Address KCSAN report on bpf_lru_list\n\nKCSAN reported a data-race when accessing node-\u003eref.\nAlthough node-\u003eref does not have to be accurate,\ntake this chance to use a more common READ_ONCE() and WRITE_ONCE()\npattern instead of data_race().\n\nThere is an existing bpf_lru_node_is_ref() and bpf_lru_node_set_ref().\nThis patch also adds bpf_lru_node_clear_ref() to do the\nWRITE_ONCE(node-\u003eref, 0) also.\n\n==================================================================\nBUG: KCSAN: data-race in __bpf_lru_list_rotate / __htab_lru_percpu_map_update_elem\n\nwrite to 0xffff888137038deb of 1 bytes by task 11240 on cpu 1:\n__bpf_lru_node_move kernel/bpf/bpf_lru_list.c:113 [inline]\n__bpf_lru_list_rotate_active kernel/bpf/bpf_lru_list.c:149 [inline]\n__bpf_lru_list_rotate+0x1bf/0x750 kernel/bpf/bpf_lru_list.c:240\nbpf_lru_list_pop_free_to_local kernel/bpf/bpf_lru_list.c:329 [inline]\nbpf_common_lru_pop_free kernel/bpf/bpf_lru_list.c:447 [inline]\nbpf_lru_pop_free+0x638/0xe20 kernel/bpf/bpf_lru_list.c:499\nprealloc_lru_pop kernel/bpf/hashtab.c:290 [inline]\n__htab_lru_percpu_map_update_elem+0xe7/0x820 kernel/bpf/hashtab.c:1316\nbpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2313\nbpf_map_update_value+0x2a9/0x370 kernel/bpf/syscall.c:200\ngeneric_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1687\nbpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4534\n__sys_bpf+0x338/0x810\n__do_sys_bpf kernel/bpf/syscall.c:5096 [inline]\n__se_sys_bpf kernel/bpf/syscall.c:5094 [inline]\n__x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5094\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\ndo_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nread to 0xffff888137038deb of 1 bytes by task 11241 on cpu 0:\nbpf_lru_node_set_ref kernel/bpf/bpf_lru_list.h:70 [inline]\n__htab_lru_percpu_map_update_elem+0x2f1/0x820 kernel/bpf/hashtab.c:1332\nbpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2313\nbpf_map_update_value+0x2a9/0x370 kernel/bpf/syscall.c:200\ngeneric_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1687\nbpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4534\n__sys_bpf+0x338/0x810\n__do_sys_bpf kernel/bpf/syscall.c:5096 [inline]\n__se_sys_bpf kernel/bpf/syscall.c:5094 [inline]\n__x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5094\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\ndo_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nvalue changed: 0x01 -\u003e 0x00\n\nReported by Kernel Concurrency Sanitizer on:\nCPU: 0 PID: 11241 Comm: syz-executor.3 Not tainted 6.3.0-rc7-syzkaller-00136-g6a66fdd29ea1 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023\n=================================================================="
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nbpf: Abordar el informe de KCSAN sobre bpf_lru_list\n\nKCSAN inform\u00f3 una condici\u00f3n de carrera de datos al acceder a node-\u0026gt;ref.\nAunque node-\u0026gt;ref no tiene que ser preciso,\naprovechar esta oportunidad para usar un patr\u00f3n m\u00e1s com\u00fan de READ_ONCE() y WRITE_ONCE()\nen lugar de data_race().\n\nExiste un bpf_lru_node_is_ref() y un bpf_lru_node_set_ref().\nEste parche tambi\u00e9n a\u00f1ade bpf_lru_node_clear_ref() para hacer el\nWRITE_ONCE(node-\u0026gt;ref, 0) tambi\u00e9n.\n\n==================================================================\nERROR: KCSAN: condici\u00f3n de carrera de datos en __bpf_lru_list_rotate / __htab_lru_percpu_map_update_elem\n\nescritura en 0xffff888137038deb de 1 byte por la tarea 11240 en la CPU 1:\n__bpf_lru_node_move kernel/bpf/bpf_lru_list.c:113 [en l\u00ednea]\n__bpf_lru_list_rotate_active kernel/bpf/bpf_lru_list.c:149 [en l\u00ednea]\n__bpf_lru_list_rotate+0x1bf/0x750 kernel/bpf/bpf_lru_list.c:240\nbpf_lru_list_pop_free_to_local kernel/bpf/bpf_lru_list.c:329 [en l\u00ednea]\nbpf_common_lru_pop_free kernel/bpf/bpf_lru_list.c:447 [en l\u00ednea]\nbpf_lru_pop_free+0x638/0xe20 kernel/bpf/bpf_lru_list.c:499\nprealloc_lru_pop kernel/bpf/hashtab.c:290 [en l\u00ednea]\n__htab_lru_percpu_map_update_elem+0xe7/0x820 kernel/bpf/hashtab.c:1316\nbpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2313\nbpf_map_update_value+0x2a9/0x370 kernel/bpf/syscall.c:200\ngeneric_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1687\nbpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4534\n__sys_bpf+0x338/0x810\n__do_sys_bpf kernel/bpf/syscall.c:5096 [en l\u00ednea]\n__se_sys_bpf kernel/bpf/syscall.c:5094 [en l\u00ednea]\n__x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5094\ndo_syscall_x64 arch/x86/entry/common.c:50 [en l\u00ednea]\ndo_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nlectura en 0xffff888137038deb de 1 byte por la tarea 11241 en la CPU 0:\nbpf_lru_node_set_ref kernel/bpf/bpf_lru_list.h:70 [en l\u00ednea]\n__htab_lru_percpu_map_update_elem+0x2f1/0x820 kernel/bpf/hashtab.c:1332\nbpf_percpu_hash_update+0x5e/0x90 kernel/bpf/hashtab.c:2313\nbpf_map_update_value+0x2a9/0x370 kernel/bpf/syscall.c:200\ngeneric_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1687\nbpf_map_do_batch+0x2d9/0x3d0 kernel/bpf/syscall.c:4534\n__sys_bpf+0x338/0x810\n__do_sys_bpf kernel/bpf/syscall.c:5096 [en l\u00ednea]\n__se_sys_bpf kernel/bpf/syscall.c:5094 [en l\u00ednea]\n__x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5094\ndo_syscall_x64 arch/x86/entry/common.c:50 [en l\u00ednea]\ndo_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nvalor cambiado: 0x01 -\u0026gt; 0x00\n\nReportado por Kernel Concurrency Sanitizer en:\nCPU: 0 PID: 11241 Comm: syz-executor.3 No contaminado 6.3.0-rc7-syzkaller-00136-g6a66fdd29ea1 #0\nNombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023\n=================================================================="
}
],
"id": "CVE-2023-54283",
"lastModified": "2026-06-17T06:47:09.260",
"metrics": {},
"published": "2025-12-30T13:16:17.287",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/6e5e83b56f50fbd1c8f7dca7df7d72c67be25571"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/6eaef1b1d8720053eb1b6e7a3ff8b2ff0716bb90"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/819ca25444b377935faa2dbb0aa3547519b5c80f"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/a89d14410ea0352420f03cddc67e0002dcc8f9a5"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/b6d9a4062c944ad095b34dc112bf646a84156f60"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/c006fe361cfd947f51a56793deddf891e5cbfef8"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/e09a285ea1e859d4cc6cb689d8d5d7c1f7c7c0d5"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/ee9fd0ac3017c4313be91a220a9ac4c99dde7ad4"
}
],
"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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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