CVE-2026-22997 (GCVE-0-2026-22997)

Vulnerability from cvelistv5 – Published: 2026-01-25 14:36 – Updated: 2026-01-25 14:36
VLAI?
Title
net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < cb2a610867bc379988bae0bb4b8bbc59c0decf1a (git)
Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < 6121b7564c725b632ffe4764abe85aa239d37703 (git)
Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < 1809c82aa073a11b7d335ae932d81ce51a588a4a (git)
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    Linux Linux Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 6.12.67 , ≤ 6.12.* (semver)
Unaffected: 6.18.7 , ≤ 6.18.* (semver)
Unaffected: 6.19-rc6 , ≤ * (original_commit_for_fix)
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          "programFiles": [
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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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      "providerMetadata": {
        "dateUpdated": "2026-01-25T14:36:12.053Z",
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    "dateReserved": "2026-01-13T15:37:45.938Z",
    "dateUpdated": "2026-01-25T14:36:12.053Z",
    "state": "PUBLISHED"
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  }
}


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Detection rules are retrieved from Rulezet.