CVE-2026-23082 (GCVE-0-2026-23082)

Vulnerability from cvelistv5 – Published: 2026-02-04 16:08 – Updated: 2026-02-06 16:32
VLAI?
Title
can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error
Summary
In the Linux kernel, the following vulnerability has been resolved: can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error In commit 7352e1d5932a ("can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak"), the URB was re-anchored before usb_submit_urb() in gs_usb_receive_bulk_callback() to prevent a leak of this URB during cleanup. However, this patch did not take into account that usb_submit_urb() could fail. The URB remains anchored and usb_kill_anchored_urbs(&parent->rx_submitted) in gs_can_close() loops infinitely since the anchor list never becomes empty. To fix the bug, unanchor the URB when an usb_submit_urb() error occurs, also print an info message.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ec5ccc2af9e5b045671f3f604b57512feda8bcc5 , < aa8a8866c533a150be4763bcb27993603bd5426c (git)
Affected: f905bcfa971edb89e398c98957838d8c6381c0c7 , < ce4352057fc5a986c76ece90801b9755e7c6e56c (git)
Affected: 08624b7206ddb9148eeffc2384ebda2c47b6d1e9 , < c610b550ccc0438d456dfe1df9f4f36254ccaae3 (git)
Affected: 9f669a38ca70839229b7ba0f851820850a2fe1f7 , < c3edc14da81a8d8398682f6e4ab819f09f37c0b7 (git)
Affected: 7352e1d5932a0e777e39fa4b619801191f57e603 , < 79a6d1bfe1148bc921b8d7f3371a7fbce44e30f7 (git)
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    Linux Linux Affected: 6.19-rc6
Unaffected: 0 , < 6.19-rc6 (semver)
Unaffected: 6.12.68 , ≤ 6.12.* (semver)
Unaffected: 6.18.8 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc7 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error\n\nIn commit 7352e1d5932a (\"can: gs_usb: gs_usb_receive_bulk_callback(): fix\nURB memory leak\"), the URB was re-anchored before usb_submit_urb() in\ngs_usb_receive_bulk_callback() to prevent a leak of this URB during\ncleanup.\n\nHowever, this patch did not take into account that usb_submit_urb() could\nfail. The URB remains anchored and\nusb_kill_anchored_urbs(\u0026parent-\u003erx_submitted) in gs_can_close() loops\ninfinitely since the anchor list never becomes empty.\n\nTo fix the bug, unanchor the URB when an usb_submit_urb() error occurs,\nalso print an info message."
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      "providerMetadata": {
        "dateUpdated": "2026-02-06T16:32:56.412Z",
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      "title": "can: gs_usb: gs_usb_receive_bulk_callback(): unanchor URL on usb_submit_urb() error",
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    "cveId": "CVE-2026-23082",
    "datePublished": "2026-02-04T16:08:06.731Z",
    "dateReserved": "2026-01-13T15:37:45.960Z",
    "dateUpdated": "2026-02-06T16:32:56.412Z",
    "state": "PUBLISHED"
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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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