{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-52887",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-52887"
  ],
  "published": "2024-07-29T15:53:08Z",
  "summary": "net: can: j1939: enhanced error handling for tightly received RTS messages in xtp_rx_rts_session_new",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: can: j1939: enhanced error handling for tightly received RTS messages in xtp_rx_rts_session_new\n\nThis patch enhances error handling in scenarios with RTS (Request to\nSend) messages arriving closely. It replaces the less informative WARN_ON_ONCE\nbacktraces with a new error handling method. This provides clearer error\nmessages and allows for the early termination of problematic sessions.\nPreviously, sessions were only released at the end of j1939_xtp_rx_rts().\n\nPotentially this could be reproduced with something like:\ntestj1939 -r vcan0:0x80 &\nwhile true; do\n\t# send first RTS\n\tcansend vcan0 18EC8090#1014000303002301;\n\t# send second RTS\n\tcansend vcan0 18EC8090#1014000303002301;\n\t# send abort\n\tcansend vcan0 18EC8090#ff00000000002301;\ndone",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-52887"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ed581989d7ea9df6f8646beba2341e32cd49a1f9"
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      "url": "https://git.kernel.org/stable/c/f6c839e717901dbd6b1c1ca807b6210222eb70f6"
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      "url": "https://git.kernel.org/stable/c/177e33b655d35d72866b50aec84307119dc5f3d4"
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    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-05T11:24:39Z"
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}