CVE-2026-22997
Estado: ModificadaMedia (5.5)—
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.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.47%
- Percentil entre todas las CVEs puntuadas: 39
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/1809c82aa073a11b7d335ae932d81ce51a588a4a
- https://git.kernel.org/stable/c/6121b7564c725b632ffe4764abe85aa239d37703
- https://git.kernel.org/stable/c/809a437e27a3bf3c1c6c8c157773635552116f2b
- https://git.kernel.org/stable/c/a73e7d7e346dae1c22dc3e95b02ca464b12daf2c
- https://git.kernel.org/stable/c/adabf01c19561e42899da9de56a6a1da0e6b8a5b
- https://git.kernel.org/stable/c/b1d67607e97d489c0cfbbf55f48a76b00710b0e4
- https://git.kernel.org/stable/c/cb2a610867bc379988bae0bb4b8bbc59c0decf1a
JSON original (NVD)
Mostrar
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"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."
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