FKIE_CVE-2024-41006
Vulnerability from fkie_nvd - Published: 2024-07-12 13:15 - Updated: 2026-06-17 07:47
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved:
netrom: Fix a memory leak in nr_heartbeat_expiry()
syzbot reported a memory leak in nr_create() [0].
Commit 409db27e3a2e ("netrom: Fix use-after-free of a listening socket.")
added sock_hold() to the nr_heartbeat_expiry() function, where
a) a socket has a SOCK_DESTROY flag or
b) a listening socket has a SOCK_DEAD flag.
But in the case "a," when the SOCK_DESTROY flag is set, the file descriptor
has already been closed and the nr_release() function has been called.
So it makes no sense to hold the reference count because no one will
call another nr_destroy_socket() and put it as in the case "b."
nr_connect
nr_establish_data_link
nr_start_heartbeat
nr_release
switch (nr->state)
case NR_STATE_3
nr->state = NR_STATE_2
sock_set_flag(sk, SOCK_DESTROY);
nr_rx_frame
nr_process_rx_frame
switch (nr->state)
case NR_STATE_2
nr_state2_machine()
nr_disconnect()
nr_sk(sk)->state = NR_STATE_0
sock_set_flag(sk, SOCK_DEAD)
nr_heartbeat_expiry
switch (nr->state)
case NR_STATE_0
if (sock_flag(sk, SOCK_DESTROY) ||
(sk->sk_state == TCP_LISTEN
&& sock_flag(sk, SOCK_DEAD)))
sock_hold() // ( !!! )
nr_destroy_socket()
To fix the memory leak, let's call sock_hold() only for a listening socket.
Found by InfoTeCS on behalf of Linux Verification Center
(linuxtesting.org) with Syzkaller.
[0]: https://syzkaller.appspot.com/bug?extid=d327a1f3b12e1e206c16
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.10 | |
| linux | linux_kernel | 6.10 | |
| linux | linux_kernel | 6.10 | |
| linux | linux_kernel | 6.10 |
{
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{
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"product": "Linux",
"programFiles": [
"net/netrom/nr_timer.c"
],
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"vendor": "Linux",
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"versionType": "git"
},
{
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},
{
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},
{
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},
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},
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"status": "affected",
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},
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},
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"status": "affected",
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},
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]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/netrom/nr_timer.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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},
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},
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},
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},
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},
{
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},
{
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},
{
"lessThanOrEqual": "6.9.*",
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"version": "6.9.7",
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},
{
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"version": "6.10",
"versionType": "original_commit_for_fix"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"affectedData": [
{
"defaultStatus": "unknown",
"product": "RUGGEDCOM RST2428P",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "RUGGEDCOM RST2428P",
"vendor": "Siemens",
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}
]
},
{
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"product": "SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family",
"vendor": "Siemens",
"versions": [
{
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"status": "unaffected",
"version": "0",
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}
]
},
{
"defaultStatus": "unknown",
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"vendor": "Siemens",
"versions": [
{
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"status": "unaffected",
"version": "0",
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}
]
},
{
"defaultStatus": "unknown",
"product": "SCALANCE XCM-/XRM-/XCH-/XRH-300 family",
"vendor": "Siemens",
"versions": [
{
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"status": "affected",
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}
]
},
{
"defaultStatus": "unknown",
"product": "SCALANCE XCM-/XRM-/XCH-/XRH-300 family",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
}
],
"configurations": [
{
"nodes": [
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"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetrom: Fix a memory leak in nr_heartbeat_expiry()\n\nsyzbot reported a memory leak in nr_create() [0].\n\nCommit 409db27e3a2e (\"netrom: Fix use-after-free of a listening socket.\")\nadded sock_hold() to the nr_heartbeat_expiry() function, where\na) a socket has a SOCK_DESTROY flag or\nb) a listening socket has a SOCK_DEAD flag.\n\nBut in the case \"a,\" when the SOCK_DESTROY flag is set, the file descriptor\nhas already been closed and the nr_release() function has been called.\nSo it makes no sense to hold the reference count because no one will\ncall another nr_destroy_socket() and put it as in the case \"b.\"\n\nnr_connect\n nr_establish_data_link\n nr_start_heartbeat\n\nnr_release\n switch (nr-\u003estate)\n case NR_STATE_3\n nr-\u003estate = NR_STATE_2\n sock_set_flag(sk, SOCK_DESTROY);\n\n nr_rx_frame\n nr_process_rx_frame\n switch (nr-\u003estate)\n case NR_STATE_2\n nr_state2_machine()\n nr_disconnect()\n nr_sk(sk)-\u003estate = NR_STATE_0\n sock_set_flag(sk, SOCK_DEAD)\n\n nr_heartbeat_expiry\n switch (nr-\u003estate)\n case NR_STATE_0\n if (sock_flag(sk, SOCK_DESTROY) ||\n (sk-\u003esk_state == TCP_LISTEN\n \u0026\u0026 sock_flag(sk, SOCK_DEAD)))\n sock_hold() // ( !!! )\n nr_destroy_socket()\n\nTo fix the memory leak, let\u0027s call sock_hold() only for a listening socket.\n\nFound by InfoTeCS on behalf of Linux Verification Center\n(linuxtesting.org) with Syzkaller.\n\n[0]: https://syzkaller.appspot.com/bug?extid=d327a1f3b12e1e206c16"
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: netrom: corrige una p\u00e9rdida de memoria en nr_heartbeat_expiry() syzbot inform\u00f3 una p\u00e9rdida de memoria en nr_create() [0]. El commit 409db27e3a2e (\"netrom: Reparar el use-after-free de un socket de escucha\") agreg\u00f3 sock_hold() a la funci\u00f3n nr_heartbeat_expiry(), donde a) un socket tiene un indicador SOCK_DESTROY ob) un socket de escucha tiene un indicador SOCK_DEAD. Pero en el caso \"a\", cuando se establece el indicador SOCK_DESTROY, el descriptor de archivo ya se ha cerrado y se ha llamado a la funci\u00f3n nr_release(). Por lo tanto, no tiene sentido mantener el recuento de referencias porque nadie llamar\u00e1 a otro nr_destroy_socket() y lo pondr\u00e1 como en el caso \"b\". nr_connect nr_establecer_data_link nr_start_heartbeat nr_release interruptor (nr-\u0026gt;estado) caso NR_STATE_3 nr-\u0026gt;estado = NR_STATE_2 sock_set_flag(sk, SOCK_DESTROY); nr_rx_frame nr_process_rx_frame interruptor (nr-\u0026gt;estado) caso NR_STATE_2 nr_state2_machine() nr_disconnect() nr_sk(sk)-\u0026gt;estado = NR_STATE_0 sock_set_flag(sk, SOCK_DEAD) nr_heartbeat_expiry interruptor (nr-\u0026gt;estado) caso NR_STATE_0 if (sock_flag(sk, OCK_DESTROY) || (sk-\u0026gt;sk_state == TCP_LISTEN \u0026amp;\u0026amp; sock_flag(sk, SOCK_DEAD))) sock_hold() // ( !!! ) nr_destroy_socket() Para solucionar la p\u00e9rdida de memoria, llamemos a sock_hold() solo para un socket de escucha. Encontrado por InfoTeCS en nombre del Centro de verificaci\u00f3n de Linux (linuxtesting.org) con Syzkaller. [0]: https://syzkaller.appspot.com/bug?extid=d327a1f3b12e1e206c16"
}
],
"id": "CVE-2024-41006",
"lastModified": "2026-06-17T07:47:04.210",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-41006",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-09-10T17:00:58.734577Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-07-12T13:15:21.370",
"references": [
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"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
},
{
"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
},
{
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"url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"
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{
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"url": "https://cert-portal.siemens.com/productcert/html/ssa-613116.html"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-401"
}
],
"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
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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