CVE-2026-22997
net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jan 25, 2026 |
| Last Updated | Apr 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
9d71dd0c70099914fcd063135da3c580865e924c < a73e7d7e346dae1c22dc3e95b02ca464b12daf2c 9d71dd0c70099914fcd063135da3c580865e924c < adabf01c19561e42899da9de56a6a1da0e6b8a5b 9d71dd0c70099914fcd063135da3c580865e924c < b1d67607e97d489c0cfbbf55f48a76b00710b0e4 9d71dd0c70099914fcd063135da3c580865e924c < 809a437e27a3bf3c1c6c8c157773635552116f2b 9d71dd0c70099914fcd063135da3c580865e924c < cb2a610867bc379988bae0bb4b8bbc59c0decf1a 9d71dd0c70099914fcd063135da3c580865e924c < 6121b7564c725b632ffe4764abe85aa239d37703 9d71dd0c70099914fcd063135da3c580865e924c < 1809c82aa073a11b7d335ae932d81ce51a588a4a
Linux / Linux
5.4
References
git.kernel.org: https://git.kernel.org/stable/c/a73e7d7e346dae1c22dc3e95b02ca464b12daf2c git.kernel.org: https://git.kernel.org/stable/c/adabf01c19561e42899da9de56a6a1da0e6b8a5b git.kernel.org: https://git.kernel.org/stable/c/b1d67607e97d489c0cfbbf55f48a76b00710b0e4 git.kernel.org: https://git.kernel.org/stable/c/809a437e27a3bf3c1c6c8c157773635552116f2b git.kernel.org: https://git.kernel.org/stable/c/cb2a610867bc379988bae0bb4b8bbc59c0decf1a git.kernel.org: https://git.kernel.org/stable/c/6121b7564c725b632ffe4764abe85aa239d37703 git.kernel.org: https://git.kernel.org/stable/c/1809c82aa073a11b7d335ae932d81ce51a588a4a