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CVE-2026-22997

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CVE-2026-22997

Published: Jan 25, 2026

Modified: May 11, 2026

PUBLISHED

CVSS v3.1

7.5

HIGH

Description

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.

VendorProductVersions

Linux

Linux

affected
9d71dd0c70099914fcd063135da3c580865e924c - < a73e7d7e346dae1c22dc3e95b02ca464b12daf2c
affected
9d71dd0c70099914fcd063135da3c580865e924c - < adabf01c19561e42899da9de56a6a1da0e6b8a5b
affected
9d71dd0c70099914fcd063135da3c580865e924c - < b1d67607e97d489c0cfbbf55f48a76b00710b0e4
affected
9d71dd0c70099914fcd063135da3c580865e924c - < 809a437e27a3bf3c1c6c8c157773635552116f2b
affected
9d71dd0c70099914fcd063135da3c580865e924c - < cb2a610867bc379988bae0bb4b8bbc59c0decf1a

+2 more versions

Linux

Linux

affected
5.4
unaffected
0 - < 5.4
unaffected
5.10.249 - <= 5.10.*
unaffected
5.15.199 - <= 5.15.*
unaffected
6.1.162 - <= 6.1.*

+4 more versions

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

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