CVE-2025-68342 (GCVE-0-2025-68342)
Vulnerability from cvelistv5 – Published: 2025-12-23 13:58 – Updated: 2025-12-23 13:58
VLAI?
Title
can: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing data
Summary
In the Linux kernel, the following vulnerability has been resolved:
can: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing data
The URB received in gs_usb_receive_bulk_callback() contains a struct
gs_host_frame. The length of the data after the header depends on the
gs_host_frame hf::flags and the active device features (e.g. time
stamping).
Introduce a new function gs_usb_get_minimum_length() and check that we have
at least received the required amount of data before accessing it. Only
copy the data to that skb that has actually been received.
[mkl: rename gs_usb_get_minimum_length() -> +gs_usb_get_minimum_rx_length()]
Severity ?
No CVSS data available.
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Affected:
d08e973a77d128b25e01a08c34d89593fdf222da , < 4ffac725154cf6a253f5e6aa0c8946232b6a0af5
(git)
Affected: d08e973a77d128b25e01a08c34d89593fdf222da , < ad55004a3cb5b41ef78aa6c09e7bc5a489ba652b (git) Affected: d08e973a77d128b25e01a08c34d89593fdf222da , < fb0c7c77a7ae3a2c3404b7d0173b8739a754b513 (git) Affected: d08e973a77d128b25e01a08c34d89593fdf222da , < 395d988f93861101ec89d0dd9e3b876ae9392a5b (git) |
||
{
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"programFiles": [
"drivers/net/can/usb/gs_usb.c"
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{
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"status": "unaffected",
"version": "6.12.61",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing data\n\nThe URB received in gs_usb_receive_bulk_callback() contains a struct\ngs_host_frame. The length of the data after the header depends on the\ngs_host_frame hf::flags and the active device features (e.g. time\nstamping).\n\nIntroduce a new function gs_usb_get_minimum_length() and check that we have\nat least received the required amount of data before accessing it. Only\ncopy the data to that skb that has actually been received.\n\n[mkl: rename gs_usb_get_minimum_length() -\u003e +gs_usb_get_minimum_rx_length()]"
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"providerMetadata": {
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"url": "https://git.kernel.org/stable/c/ad55004a3cb5b41ef78aa6c09e7bc5a489ba652b"
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"url": "https://git.kernel.org/stable/c/fb0c7c77a7ae3a2c3404b7d0173b8739a754b513"
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"title": "can: gs_usb: gs_usb_receive_bulk_callback(): check actual_length before accessing data",
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"cveId": "CVE-2025-68342",
"datePublished": "2025-12-23T13:58:27.579Z",
"dateReserved": "2025-12-16T14:48:05.298Z",
"dateUpdated": "2025-12-23T13:58:27.579Z",
"state": "PUBLISHED"
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
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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