CVE-2026-22997
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.
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.
Vendor
Product
CWE
Yayın Tarihi
2026-01-25 15:15:54
Güncelleme
2026-02-26 17:01:43
Source Identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
KEV Date Added
-
Kategoriler
Referanslar
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