FKIE_CVE-2026-22997

Vulnerability from fkie_nvd - Published: 2026-01-25 15:15 - Updated: 2026-01-26 15:03
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts Since j1939_session_deactivate_activate_next() in j1939_tp_rxtimer() is called only when the timer is enabled, we need to call j1939_session_deactivate_activate_next() if we cancelled the timer. Otherwise, refcount for j1939_session leaks, which will later appear as | unregister_netdevice: waiting for vcan0 to become free. Usage count = 2. problem.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1809c82aa073a11b7d335ae932d81ce51a588a4a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6121b7564c725b632ffe4764abe85aa239d37703
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cb2a610867bc379988bae0bb4b8bbc59c0decf1a
Impacted products
Vendor Product Version
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{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts\n\nSince j1939_session_deactivate_activate_next() in j1939_tp_rxtimer() is\ncalled only when the timer is enabled, we need to call\nj1939_session_deactivate_activate_next() if we cancelled the timer.\nOtherwise, refcount for j1939_session leaks, which will later appear as\n\n| unregister_netdevice: waiting for vcan0 to become free. Usage count = 2.\n\nproblem."
    }
  ],
  "id": "CVE-2026-22997",
  "lastModified": "2026-01-26T15:03:33.357",
  "metrics": {},
  "published": "2026-01-25T15:15:54.540",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1809c82aa073a11b7d335ae932d81ce51a588a4a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/6121b7564c725b632ffe4764abe85aa239d37703"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/cb2a610867bc379988bae0bb4b8bbc59c0decf1a"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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