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

Vulnerability from cvelistv5 – Published: 2026-01-25 14:36 – Updated: 2026-06-16 20:36
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
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < a73e7d7e346dae1c22dc3e95b02ca464b12daf2c (git)
Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < adabf01c19561e42899da9de56a6a1da0e6b8a5b (git)
Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < b1d67607e97d489c0cfbbf55f48a76b00710b0e4 (git)
Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < 809a437e27a3bf3c1c6c8c157773635552116f2b (git)
Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < cb2a610867bc379988bae0bb4b8bbc59c0decf1a (git)
Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < 6121b7564c725b632ffe4764abe85aa239d37703 (git)
Affected: 9d71dd0c70099914fcd063135da3c580865e924c , < 1809c82aa073a11b7d335ae932d81ce51a588a4a (git)
Create a notification for this product.
Linux Linux Affected: 5.4
Unaffected: 0 , < 5.4 (semver)
Unaffected: 5.10.249 , ≤ 5.10.* (semver)
Unaffected: 5.15.199 , ≤ 5.15.* (semver)
Unaffected: 6.1.162 , ≤ 6.1.* (semver)
Unaffected: 6.6.122 , ≤ 6.6.* (semver)
Unaffected: 6.12.67 , ≤ 6.12.* (semver)
Unaffected: 6.18.7 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-22997\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-06-16T20:36:25.922251Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-06-16T20:36:31.800Z\"}}], \"cna\": {\"title\": \"net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts\", \"metrics\": [{\"cvssV3_1\": {\"version\": \"3.1\", \"baseScore\": 7.5, \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\"}}], \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"9d71dd0c70099914fcd063135da3c580865e924c\", \"lessThan\": \"a73e7d7e346dae1c22dc3e95b02ca464b12daf2c\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"9d71dd0c70099914fcd063135da3c580865e924c\", \"lessThan\": \"adabf01c19561e42899da9de56a6a1da0e6b8a5b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"9d71dd0c70099914fcd063135da3c580865e924c\", \"lessThan\": \"b1d67607e97d489c0cfbbf55f48a76b00710b0e4\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"9d71dd0c70099914fcd063135da3c580865e924c\", \"lessThan\": \"809a437e27a3bf3c1c6c8c157773635552116f2b\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"9d71dd0c70099914fcd063135da3c580865e924c\", \"lessThan\": \"cb2a610867bc379988bae0bb4b8bbc59c0decf1a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"9d71dd0c70099914fcd063135da3c580865e924c\", \"lessThan\": \"6121b7564c725b632ffe4764abe85aa239d37703\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"9d71dd0c70099914fcd063135da3c580865e924c\", \"lessThan\": \"1809c82aa073a11b7d335ae932d81ce51a588a4a\", \"versionType\": \"git\"}], \"programFiles\": [\"net/can/j1939/transport.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.4\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.4\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.10.249\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.199\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.162\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.122\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.67\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.18.7\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.18.*\"}, {\"status\": \"unaffected\", \"version\": \"6.19\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/can/j1939/transport.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/a73e7d7e346dae1c22dc3e95b02ca464b12daf2c\"}, {\"url\": \"https://git.kernel.org/stable/c/adabf01c19561e42899da9de56a6a1da0e6b8a5b\"}, {\"url\": \"https://git.kernel.org/stable/c/b1d67607e97d489c0cfbbf55f48a76b00710b0e4\"}, {\"url\": \"https://git.kernel.org/stable/c/809a437e27a3bf3c1c6c8c157773635552116f2b\"}, {\"url\": \"https://git.kernel.org/stable/c/cb2a610867bc379988bae0bb4b8bbc59c0decf1a\"}, {\"url\": \"https://git.kernel.org/stable/c/6121b7564c725b632ffe4764abe85aa239d37703\"}, {\"url\": \"https://git.kernel.org/stable/c/1809c82aa073a11b7d335ae932d81ce51a588a4a\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"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.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.249\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.199\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.162\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.122\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.67\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.18.7\", \"versionStartIncluding\": \"5.4\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.19\", \"versionStartIncluding\": \"5.4\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T21:58:00.440Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-22997\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-16T20:36:36.417Z\", \"dateReserved\": \"2026-01-13T15:37:45.938Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2026-01-25T14:36:12.053Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.