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CVE-2026-23031 (GCVE-0-2026-23031)

Vulnerability from cvelistv5 – Published: 2026-01-31 11:42 – Updated: 2026-06-02 13:00
VLAI
Title
can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak
Summary
In the Linux kernel, the following vulnerability has been resolved: can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak In gs_can_open(), the URBs for USB-in transfers are allocated, added to the parent->rx_submitted anchor and submitted. In the complete callback gs_usb_receive_bulk_callback(), the URB is processed and resubmitted. In gs_can_close() the URBs are freed by calling usb_kill_anchored_urbs(parent->rx_submitted). However, this does not take into account that the USB framework unanchors the URB before the complete function is called. This means that once an in-URB has been completed, it is no longer anchored and is ultimately not released in gs_can_close(). Fix the memory leak by anchoring the URB in the gs_usb_receive_bulk_callback() to the parent->rx_submitted anchor.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d08e973a77d128b25e01a08c34d89593fdf222da , < 9c151898cc259a7784be60ba38664f42ede39b31 (git)
Affected: d08e973a77d128b25e01a08c34d89593fdf222da , < ec5ccc2af9e5b045671f3f604b57512feda8bcc5 (git)
Affected: d08e973a77d128b25e01a08c34d89593fdf222da , < f905bcfa971edb89e398c98957838d8c6381c0c7 (git)
Affected: d08e973a77d128b25e01a08c34d89593fdf222da , < 08624b7206ddb9148eeffc2384ebda2c47b6d1e9 (git)
Affected: d08e973a77d128b25e01a08c34d89593fdf222da , < 9f669a38ca70839229b7ba0f851820850a2fe1f7 (git)
Affected: d08e973a77d128b25e01a08c34d89593fdf222da , < 7352e1d5932a0e777e39fa4b619801191f57e603 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.16
Unaffected: 0 , < 3.16 (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.162 , ≤ 6.1.* (semver)
Unaffected: 6.6.122 , ≤ 6.6.* (semver)
Unaffected: 6.12.67 , ≤ 6.12.* (semver)
Unaffected: 6.18.7 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens RUGGEDCOM RST2428P Affected: 0 , < V4.0 (custom)
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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      "cve": "CVE-2026-23031",
      "id": "CVE-2026-23031",
      "initial_release_date": "2026-01-31T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Memory leak in gs_usb module can lead to denial of service via improper USB Request Block handling.",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23031.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T01:38:28Z",
      "cve": "CVE-2026-23031",
      "id": "CVE-2026-23031",
      "initial_release_date": "2026-02-01T00:23:41Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "428",
      "product_status:known_not_affected": "21",
      "product_status:recommended": "172",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-23031",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-23031.json",
      "version": "15"
    }
  }
}



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