can: isotp: check CAN address family in isotp_bind()
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$xdp(r2, &(0x7f0000000540)={0x2c, 0x0, r4, 0x0, r2}, 0x10) ^^^^ This has no funtional impact but the userspace should be notified about the wrong address family field content.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.200, 5.15.138, 6.1.16, 6.2.3
- CVEs
- CVE-2023-54105
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 08:35 UTC · Revision 1
Source evidence
can: isotp: check CAN address family in isotp_bind()
core-osv · Original sourcePublished 24 Dec 2025, 13:06 UTC
In the Linux kernel, the following vulnerability has been resolved: can: isotp: check CAN address family in isotp_bind() Add missing check to block non-AF_CAN binds. Syzbot created some code which matched the right sockaddr struct size but used AF_XDP (0x2C) instead of AF_CAN (0x1D) in the address family field: bind$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.
osv:CVE-2023-54105
Kernel
Fixed versions: 5.10.200, 5.15.138, 6.1.16, 6.2.3
Complete source record
{
"id": "1fe17c928074fc5c27ddd4f2953cf50bc7b3b3e286a51ee89613b3d9a4b22cf0",
"url": "https://osv.dev/vulnerability/CVE-2023-54105",
"method": "structured",
"payload": {
"kind": "advisory",
"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.",
"evidence": "osv:CVE-2023-54105",
"products": [
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"name": {
"value": "Kernel",
"evidence": "/affected/1/package/name"
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"prerequisites": [],
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"value": "5.10.200",
"evidence": "/affected/1/ranges"
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{
"value": "5.15.138",
"evidence": "/affected/1/ranges"
},
{
"value": "6.1.16",
"evidence": "/affected/1/ranges"
},
{
"value": "6.2.3",
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}
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"affected_versions": []
}
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"severity": "unknown",
"structured": {
"id": "CVE-2023-54105",
"aliases": [
"CVE-2023-54105"
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"affected": [
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{
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{
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{
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{
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{
"fixed": "6.1.16"
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{
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{
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"package": {
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"database_specific": {
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],
"modified": "2026-10-28T02:30:33.853243957Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/2fc6f337257f4f7c21ecff429241f7acaa6df4e8",
"https://git.kernel.org/stable/c/9427584c2f153d0677ef3bad6f44028c60d728c4",
"https://git.kernel.org/stable/c/c6adf659a8ba85913e16a571d5a9bcd17d3d1234",
"https://git.kernel.org/stable/c/dd4faace51e41a82a8c0770ee0cc26088f9d9d06",
"https://git.kernel.org/stable/c/de3c02383aa678f6799402ac47fdd89cf4bfcaa9",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54105.json",
"https://nvd.nist.gov/vuln/detail/CVE-2023-54105",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54105.json"
}
},
"related_cves": [
{
"value": "CVE-2023-54105",
"evidence": "/id"
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],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 501152,
"published_at": "2025-12-24T13:06:30.053+00:00"
}