CVE-2026-22997high

CVE-2026-22997: high-severity vulnerability in Linux

net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts

Published · Updated

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 7.5epss 0.5%
exploitation probability
0.5%top 61% of all CVEs
observed exploitation
nono source reports it
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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
Linux · Linux
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References
https://git.kernel.org/stable/c/1809c82aa073a11b7d335ae932d81ce51a588a4ahttps://git.kernel.org/stable/c/6121b7564c725b632ffe4764abe85aa239d37703https://git.kernel.org/stable/c/809a437e27a3bf3c1c6c8c157773635552116f2bhttps://git.kernel.org/stable/c/a73e7d7e346dae1c22dc3e95b02ca464b12daf2chttps://git.kernel.org/stable/c/adabf01c19561e42899da9de56a6a1da0e6b8a5bhttps://git.kernel.org/stable/c/b1d67607e97d489c0cfbbf55f48a76b00710b0e4https://git.kernel.org/stable/c/cb2a610867bc379988bae0bb4b8bbc59c0decf1a