fkie_cve-2023-52941
Vulnerability from fkie_nvd
Published
2025-03-27 17:15
Modified
2025-03-28 18:11
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
can: isotp: split tx timer into transmission and timeout
The timer for the transmission of isotp PDUs formerly had two functions:
1. send two consecutive frames with a given time gap
2. monitor the timeouts for flow control frames and the echo frames
This led to larger txstate checks and potentially to a problem discovered
by syzbot which enabled the panic_on_warn feature while testing.
The former 'txtimer' function is split into 'txfrtimer' and 'txtimer'
to handle the two above functionalities with separate timer callbacks.
The two simplified timers now run in one-shot mode and make the state
transitions (especially with isotp_rcv_echo) better understandable.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: isotp: split tx timer into transmission and timeout\n\nThe timer for the transmission of isotp PDUs formerly had two functions:\n1. send two consecutive frames with a given time gap\n2. monitor the timeouts for flow control frames and the echo frames\n\nThis led to larger txstate checks and potentially to a problem discovered\nby syzbot which enabled the panic_on_warn feature while testing.\n\nThe former \u0027txtimer\u0027 function is split into \u0027txfrtimer\u0027 and \u0027txtimer\u0027\nto handle the two above functionalities with separate timer callbacks.\n\nThe two simplified timers now run in one-shot mode and make the state\ntransitions (especially with isotp_rcv_echo) better understandable."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: can: isotp: dividir el temporizador de transmisi\u00f3n en transmisi\u00f3n y tiempo de espera El temporizador para la transmisi\u00f3n de PDU isotp anteriormente ten\u00eda dos funciones: 1. enviar dos tramas consecutivas con un intervalo de tiempo determinado 2. supervisar los tiempos de espera para las tramas de control de flujo y las tramas de eco Esto llev\u00f3 a comprobaciones de txstate m\u00e1s grandes y potencialmente a un problema descubierto por syzbot que habilit\u00f3 la caracter\u00edstica panic_on_warn durante las pruebas. La antigua funci\u00f3n \u0027txtimer\u0027 se divide en \u0027txfrtimer\u0027 y \u0027txtimer\u0027 para manejar las dos funcionalidades anteriores con devoluciones de llamadas de temporizador independientes. Los dos temporizadores simplificados ahora se ejecutan en modo de una sola vez y hacen que las transiciones de estado (especialmente con isotp_rcv_echo) sean mejor comprensibles."
}
],
"id": "CVE-2023-52941",
"lastModified": "2025-03-28T18:11:49.747",
"metrics": {},
"published": "2025-03-27T17:15:44.043",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/4f027cba8216f42a18b544842efab134f8b1f9f4"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/cae4c9bc35f72af5d4a079bb9d9fd62c4088a411"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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