CVE-2026-22997High· 7.5▾ TwilightIn 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…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.5%
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.
Linux >= 9d71dd0c70099914fcd063135da3c580865e924c < a73e7d7e346dae1c22dc3e95b02ca464b12daf2cLinux >= 9d71dd0c70099914fcd063135da3c580865e924c < adabf01c19561e42899da9de56a6a1da0e6b8a5bLinux >= 9d71dd0c70099914fcd063135da3c580865e924c < b1d67607e97d489c0cfbbf55f48a76b00710b0e4Linux >= 9d71dd0c70099914fcd063135da3c580865e924c < 809a437e27a3bf3c1c6c8c157773635552116f2bLinux >= 9d71dd0c70099914fcd063135da3c580865e924c < cb2a610867bc379988bae0bb4b8bbc59c0decf1aLinux >= 9d71dd0c70099914fcd063135da3c580865e924c < 6121b7564c725b632ffe4764abe85aa239d37703Linux >= 9d71dd0c70099914fcd063135da3c580865e924c < 1809c82aa073a11b7d335ae932d81ce51a588a4aLinux 5.4Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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