FKIE_CVE-2023-52621
Vulnerability from fkie_nvd - Published: 2024-03-26 18:15 - Updated: 2026-06-17 06:43
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers
These three bpf_map_{lookup,update,delete}_elem() helpers are also
available for sleepable bpf program, so add the corresponding lock
assertion for sleepable bpf program, otherwise the following warning
will be reported when a sleepable bpf program manipulates bpf map under
interpreter mode (aka bpf_jit_enable=0):
WARNING: CPU: 3 PID: 4985 at kernel/bpf/helpers.c:40 ......
CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) ......
RIP: 0010:bpf_map_lookup_elem+0x54/0x60
......
Call Trace:
<TASK>
? __warn+0xa5/0x240
? bpf_map_lookup_elem+0x54/0x60
? report_bug+0x1ba/0x1f0
? handle_bug+0x40/0x80
? exc_invalid_op+0x18/0x50
? asm_exc_invalid_op+0x1b/0x20
? __pfx_bpf_map_lookup_elem+0x10/0x10
? rcu_lockdep_current_cpu_online+0x65/0xb0
? rcu_is_watching+0x23/0x50
? bpf_map_lookup_elem+0x54/0x60
? __pfx_bpf_map_lookup_elem+0x10/0x10
___bpf_prog_run+0x513/0x3b70
__bpf_prog_run32+0x9d/0xd0
? __bpf_prog_enter_sleepable_recur+0xad/0x120
? __bpf_prog_enter_sleepable_recur+0x3e/0x120
bpf_trampoline_6442580665+0x4d/0x1000
__x64_sys_getpgid+0x5/0x30
? do_syscall_64+0x36/0xb0
entry_SYSCALL_64_after_hwframe+0x6e/0x76
</TASK>
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| debian | debian_linux | 11.0 | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * |
{
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"kernel/bpf/helpers.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "82f2df94dac1aa9b879e74d1f82ba1b631bdc612",
"status": "affected",
"version": "1e6c62a8821557720a9b2ea9617359b264f2f67c",
"versionType": "git"
},
{
"lessThan": "3516f93cc63d956e1b290ae4b7bf2586074535a0",
"status": "affected",
"version": "1e6c62a8821557720a9b2ea9617359b264f2f67c",
"versionType": "git"
},
{
"lessThan": "d6d6fe4bb105595118f12abeed4a7bdd450853f3",
"status": "affected",
"version": "1e6c62a8821557720a9b2ea9617359b264f2f67c",
"versionType": "git"
},
{
"lessThan": "483cb92334cd7f1d5387dccc0ab5d595d27a669d",
"status": "affected",
"version": "1e6c62a8821557720a9b2ea9617359b264f2f67c",
"versionType": "git"
},
{
"lessThan": "c7f1b6146f4a46d727c0d046284c28b6882c6304",
"status": "affected",
"version": "1e6c62a8821557720a9b2ea9617359b264f2f67c",
"versionType": "git"
},
{
"lessThan": "169410eba271afc9f0fb476d996795aa26770c6d",
"status": "affected",
"version": "1e6c62a8821557720a9b2ea9617359b264f2f67c",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"kernel/bpf/helpers.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.10"
},
{
"lessThan": "5.10",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.237",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.181",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.77",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.16",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"version": "6.7.4",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.8",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
"matchCriteriaId": "FA6FEEC2-9F11-4643-8827-749718254FED",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "ADF07DB8-E560-4CDE-8E9C-2297AFF73222",
"versionEndExcluding": "5.10.237",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "12331C9E-F601-4EFC-899E-369F98DCC70B",
"versionEndExcluding": "5.15.181",
"versionStartIncluding": "5.11",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "0FA28946-970D-4F4D-B759-4E77B28809B5",
"versionEndExcluding": "6.1.77",
"versionStartIncluding": "5.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "A5007D6A-4B58-423A-8A3A-A1A656A263C8",
"versionEndExcluding": "6.6.16",
"versionStartIncluding": "6.2",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"matchCriteriaId": "848BC44C-9D25-4557-A50A-4B8BF310FA78",
"versionEndExcluding": "6.7.4",
"versionStartIncluding": "6.7",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Check rcu_read_lock_trace_held() before calling bpf map helpers\n\nThese three bpf_map_{lookup,update,delete}_elem() helpers are also\navailable for sleepable bpf program, so add the corresponding lock\nassertion for sleepable bpf program, otherwise the following warning\nwill be reported when a sleepable bpf program manipulates bpf map under\ninterpreter mode (aka bpf_jit_enable=0):\n\n WARNING: CPU: 3 PID: 4985 at kernel/bpf/helpers.c:40 ......\n CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) ......\n RIP: 0010:bpf_map_lookup_elem+0x54/0x60\n ......\n Call Trace:\n \u003cTASK\u003e\n ? __warn+0xa5/0x240\n ? bpf_map_lookup_elem+0x54/0x60\n ? report_bug+0x1ba/0x1f0\n ? handle_bug+0x40/0x80\n ? exc_invalid_op+0x18/0x50\n ? asm_exc_invalid_op+0x1b/0x20\n ? __pfx_bpf_map_lookup_elem+0x10/0x10\n ? rcu_lockdep_current_cpu_online+0x65/0xb0\n ? rcu_is_watching+0x23/0x50\n ? bpf_map_lookup_elem+0x54/0x60\n ? __pfx_bpf_map_lookup_elem+0x10/0x10\n ___bpf_prog_run+0x513/0x3b70\n __bpf_prog_run32+0x9d/0xd0\n ? __bpf_prog_enter_sleepable_recur+0xad/0x120\n ? __bpf_prog_enter_sleepable_recur+0x3e/0x120\n bpf_trampoline_6442580665+0x4d/0x1000\n __x64_sys_getpgid+0x5/0x30\n ? do_syscall_64+0x36/0xb0\n entry_SYSCALL_64_after_hwframe+0x6e/0x76\n \u003c/TASK\u003e"
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: bpf: verifique rcu_read_lock_trace_held() antes de llamar a los ayudantes de mapas de bpf. Estos tres ayudantes de bpf_map_{lookup,update,delete}_elem() tambi\u00e9n est\u00e1n disponibles para el programa bpf que se puede dormir, as\u00ed que agregue el bloqueo correspondiente. aserci\u00f3n para el programa bpf con capacidad para dormir; de lo contrario, se informar\u00e1 la siguiente advertencia cuando un programa bpf con capacidad para dormir manipule el mapa bpf en modo int\u00e9rprete (tambi\u00e9n conocido como bpf_jit_enable=0): ADVERTENCIA: CPU: 3 PID: 4985 en kernel/bpf/helpers.c:40. ..... CPU: 3 PID: 4985 Comm: test_progs Not tainted 6.6.0+ #2 Nombre del hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996) ...... RIP: 0010:bpf_map_lookup_elem+0x54/0x60 ...... Seguimiento de llamadas: ? __advertir+0xa5/0x240 ? bpf_map_lookup_elem+0x54/0x60? report_bug+0x1ba/0x1f0? handle_bug+0x40/0x80? exc_invalid_op+0x18/0x50? asm_exc_invalid_op+0x1b/0x20? __pfx_bpf_map_lookup_elem+0x10/0x10 ? rcu_lockdep_current_cpu_online+0x65/0xb0? rcu_is_watching+0x23/0x50? bpf_map_lookup_elem+0x54/0x60? __pfx_bpf_map_lookup_elem+0x10/0x10 ___bpf_prog_run+0x513/0x3b70 __bpf_prog_run32+0x9d/0xd0 ? __bpf_prog_enter_sleepable_recur+0xad/0x120 ? __bpf_prog_enter_sleepable_recur+0x3e/0x120 bpf_trampoline_6442580665+0x4d/0x1000 __x64_sys_getpgid+0x5/0x30 ? do_syscall_64+0x36/0xb0 entrada_SYSCALL_64_after_hwframe+0x6e/0x76 "
}
],
"id": "CVE-2023-52621",
"lastModified": "2026-06-17T06:43:11.147",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-52621",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T15:54:18.779612Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-03-26T18:15:08.817",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/169410eba271afc9f0fb476d996795aa26770c6d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/3516f93cc63d956e1b290ae4b7bf2586074535a0"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/483cb92334cd7f1d5387dccc0ab5d595d27a669d"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/82f2df94dac1aa9b879e74d1f82ba1b631bdc612"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/c7f1b6146f4a46d727c0d046284c28b6882c6304"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/d6d6fe4bb105595118f12abeed4a7bdd450853f3"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/169410eba271afc9f0fb476d996795aa26770c6d"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/483cb92334cd7f1d5387dccc0ab5d595d27a669d"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/c7f1b6146f4a46d727c0d046284c28b6882c6304"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://git.kernel.org/stable/c/d6d6fe4bb105595118f12abeed4a7bdd450853f3"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Analyzed",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-617"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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
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