CVE-2026-22997net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts
- 7.5HighCVSS base score
- 0.46%Exploitation in 30 daysEPSS · top 59% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 12 days later
· 12 days later
Published
- 9 months later
· 9 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.46% · top 59% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected 9d71dd0c70099914fcd063135da3c580865e924c – < a73e7d7e346dae1c22dc3e95b02ca464b12daf2c
- affected 9d71dd0c70099914fcd063135da3c580865e924c – < adabf01c19561e42899da9de56a6a1da0e6b8a5b
- affected 9d71dd0c70099914fcd063135da3c580865e924c – < b1d67607e97d489c0cfbbf55f48a76b00710b0e4
- affected 9d71dd0c70099914fcd063135da3c580865e924c – < 809a437e27a3bf3c1c6c8c157773635552116f2b
- affected 9d71dd0c70099914fcd063135da3c580865e924c – < cb2a610867bc379988bae0bb4b8bbc59c0decf1a
- affected 9d71dd0c70099914fcd063135da3c580865e924c – < 6121b7564c725b632ffe4764abe85aa239d37703
- affected 9d71dd0c70099914fcd063135da3c580865e924c – < 1809c82aa073a11b7d335ae932d81ce51a588a4a
- affected 5.4
- unaffected < 5.4
- unaffected 5.10.249 – ≤ 5.10.*
- unaffected 5.15.199 – ≤ 5.15.*
- unaffected 6.1.162 – ≤ 6.1.*
- unaffected 6.6.122 – ≤ 6.6.*
- unaffected 6.12.67 – ≤ 6.12.*
- unaffected 6.18.7 – ≤ 6.18.*
- unaffected 6.19 – ≤ *
References
References7
- https://git.kernel.org/stable/c/a73e7d7e346dae1c22dc3e95b02ca464b12daf2c (opens in a new tab)
- https://git.kernel.org/stable/c/adabf01c19561e42899da9de56a6a1da0e6b8a5b (opens in a new tab)
- https://git.kernel.org/stable/c/b1d67607e97d489c0cfbbf55f48a76b00710b0e4 (opens in a new tab)
- https://git.kernel.org/stable/c/809a437e27a3bf3c1c6c8c157773635552116f2b (opens in a new tab)
- https://git.kernel.org/stable/c/cb2a610867bc379988bae0bb4b8bbc59c0decf1a (opens in a new tab)
- https://git.kernel.org/stable/c/6121b7564c725b632ffe4764abe85aa239d37703 (opens in a new tab)
- https://git.kernel.org/stable/c/1809c82aa073a11b7d335ae932d81ce51a588a4a (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-4637 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-22997)Record last updated .