CVE-2023-54105 (GCVE-0-2023-54105)

Vulnerability from cvelistv5 – Published: 2025-12-24 13:06 – Updated: 2026-05-11 19:55
VLAI
Title
can: isotp: check CAN address family in isotp_bind()
Summary
In the Linux kernel, the following vulnerability has been resolved: can: isotp: check CAN address family in isotp_bind() Add missing check to block non-AF_CAN binds. Syzbot created some code which matched the right sockaddr struct size but used AF_XDP (0x2C) instead of AF_CAN (0x1D) in the address family field: bind$xdp(r2, &(0x7f0000000540)={0x2c, 0x0, r4, 0x0, r2}, 0x10) ^^^^ This has no funtional impact but the userspace should be notified about the wrong address family field content.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e057dd3fc20ffb3d7f150af46542a51b59b90127 , < de3c02383aa678f6799402ac47fdd89cf4bfcaa9 (git)
Affected: e057dd3fc20ffb3d7f150af46542a51b59b90127 , < 2fc6f337257f4f7c21ecff429241f7acaa6df4e8 (git)
Affected: e057dd3fc20ffb3d7f150af46542a51b59b90127 , < 9427584c2f153d0677ef3bad6f44028c60d728c4 (git)
Affected: e057dd3fc20ffb3d7f150af46542a51b59b90127 , < dd4faace51e41a82a8c0770ee0cc26088f9d9d06 (git)
Affected: e057dd3fc20ffb3d7f150af46542a51b59b90127 , < c6adf659a8ba85913e16a571d5a9bcd17d3d1234 (git)
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Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.200 , ≤ 5.10.* (semver)
Unaffected: 5.15.138 , ≤ 5.15.* (semver)
Unaffected: 6.1.16 , ≤ 6.1.* (semver)
Unaffected: 6.2.3 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "net/can/isotp.c"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: isotp: check CAN address family in isotp_bind()\n\nAdd missing check to block non-AF_CAN binds.\n\nSyzbot created some code which matched the right sockaddr struct size\nbut used AF_XDP (0x2C) instead of AF_CAN (0x1D) in the address family\nfield:\n\nbind$xdp(r2, \u0026(0x7f0000000540)={0x2c, 0x0, r4, 0x0, r2}, 0x10)\n                                ^^^^\nThis has no funtional impact but the userspace should be notified about\nthe wrong address family field content."
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        "shortName": "Linux"
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    "datePublished": "2025-12-24T13:06:30.053Z",
    "dateReserved": "2025-12-24T13:02:52.517Z",
    "dateUpdated": "2026-05-11T19:55:34.267Z",
    "state": "PUBLISHED"
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  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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