UnratedFix available
can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure es58x_read_bulk_callback() resubmits the RX URB after processing a received packet. If the resubmit succeeds, the URB remains anchored and will be handled by the normal RX path or by teardown. However, if usb_submit_urb() fails, the callback unanchors the URB and then returns directly. This skips the existing free_urb path, so the coherent transfer buffer allocated with usb_alloc_coherent() is not released. Reuse the existing free_urb path after a resubmit failure so that the RX coherent buffer is freed before leaving the callback.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.15.216, 6.1.183, 6.12.103, 6.18.44, 6.6.151, 7.1.8
- CVEs
- CVE-2026-74459
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 28 Oct 2026, 08:58 UTC · Revision 1
Source evidence
can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure
core-osv · Original sourcePublished 15 Aug 2026, 12:27 UTC
In the Linux kernel, the following vulnerability has been resolved: can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure es58x_read_bulk_callback() resubmits the RX URB after processing a received packet. If the resubmit succeeds, the URB remains anchored and will be handled by the normal RX path or by teardown. However, if usb_submit_urb() fails, the callback unanchors the URB and then returns directly. This skips the existing free_urb path, so the coherent transfer buffer allocated with usb_alloc_coherent() is not released. Reuse the existing free_urb path after a resubmit failure so that the RX coherent buffer is freed before leaving the callback.
osv:CVE-2026-74459
Kernel
Fixed versions: 5.15.216, 6.1.183, 6.6.151, 6.12.103, 6.18.44, 7.1.8
Complete source record
{
"id": "6a6e9692d6182763d084360eaa61c4835f7c18c316ecc780705610dd027e0dbb",
"url": "https://osv.dev/vulnerability/CVE-2026-74459",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure",
"summary": "In the Linux kernel, the following vulnerability has been resolved: can: etas_es58x: es58x_read_bulk_callback(): fix RX buffer leak on URB resubmit failure es58x_read_bulk_callback() resubmits the RX URB after processing a received packet. If the resubmit succeeds, the URB remains anchored and will be handled by the normal RX path or by teardown. However, if usb_submit_urb() fails, the callback unanchors the URB and then returns directly. This skips the existing free_urb path, so the coherent transfer buffer allocated with usb_alloc_coherent() is not released. Reuse the existing free_urb path after a resubmit failure so that the RX coherent buffer is freed before leaving the callback.",
"evidence": "osv:CVE-2026-74459",
"products": [
{
"name": {
"value": "Kernel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.15.216",
"evidence": "/affected/1/ranges"
},
{
"value": "6.1.183",
"evidence": "/affected/1/ranges"
},
{
"value": "6.6.151",
"evidence": "/affected/1/ranges"
},
{
"value": "6.12.103",
"evidence": "/affected/1/ranges"
},
{
"value": "6.18.44",
"evidence": "/affected/1/ranges"
},
{
"value": "7.1.8",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CVE-2026-74459",
"aliases": [
"CVE-2026-74459"
],
"affected": [
{
"ranges": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "7a0171b4921ad443fee5ed4fcb9d99fa4776edac"
},
{
"fixed": "c7ddf119544eea2d8409e12471c3f9f36ca02e3f"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "2185ea6e4ebcb61d1224dc7d187c59723cb5ad59"
},
{
"fixed": "21da1a374769751546cc131e58a4d8bd968f57b2"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "f6e90c113c92e83fc0963d5e60e16b0e8a268981"
},
{
"fixed": "0ef136ba052101243ba117a1aca6f4a4c3a81142"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "b878444519fa03a3edd287d1963cf79ef78be2f1"
},
{
"fixed": "b85e5c310382803d27adf6fe6554d4208bc8951c"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "18eee279e9b5bff0db1aca9475ae4bc12804f05c"
},
{
"fixed": "c311f17c261fd375ddf5755f2ebe1f022c19c5b0"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "5eaad4f768266f1f17e01232ffe2ef009f8129b7"
},
{
"fixed": "19c6c8c6cd5dd14fab5fcd744584812a57cbb78d"
},
{
"fixed": "7a0cf2b2497c757c3cb1286eddf2986abb0d387b"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "5.15.203"
},
{
"fixed": "5.15.216"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "6.1.167"
},
{
"fixed": "6.1.183"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "6.6.130"
},
{
"fixed": "6.6.151"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "6.12.77"
},
{
"fixed": "6.12.103"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "6.18.17"
},
{
"fixed": "6.18.44"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "6.19.7"
},
{
"fixed": "6.20"
}
]
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"type": "GIT",
"events": [
{
"introduced": "b8f9ca88253574638bcff38900a4c28d570b1919"
}
]
}
],
"versions": [
"v5.15.215",
"v5.15.214",
"v5.15.213",
"v5.15.212",
"v5.15.211",
"v5.15.210",
"v5.15.209",
"v5.15.208",
"v5.15.207",
"v5.15.206",
"v5.15.205",
"v5.15.204",
"v5.15.203",
"v6.1.182",
"v6.1.181",
"v6.1.180",
"v6.1.179",
"v6.1.178",
"v6.1.177",
"v6.1.176",
"v6.1.175",
"v6.1.174",
"v6.1.173",
"v6.1.172",
"v6.1.171",
"v6.1.170",
"v6.1.169",
"v6.1.168",
"v6.1.167",
"v6.6.150",
"v6.6.149",
"v6.6.148",
"v6.6.147",
"v6.6.146",
"v6.6.145",
"v6.6.144",
"v6.6.143",
"v6.6.142",
"v6.6.141",
"v6.6.140",
"v6.6.139",
"v6.6.138",
"v6.6.137",
"v6.6.136",
"v6.6.135",
"v6.6.134",
"v6.6.133",
"v6.6.132",
"v6.6.131",
"v6.6.130",
"v6.12.102",
"v6.12.101",
"v6.12.100",
"v6.12.99",
"v6.12.98",
"v6.12.97",
"v6.12.96",
"v6.12.95",
"v6.12.94",
"v6.12.93",
"v6.12.92",
"v6.12.91",
"v6.12.90",
"v6.12.89",
"v6.12.88",
"v6.12.87",
"v6.12.86",
"v6.12.85",
"v6.12.84",
"v6.12.83",
"v6.12.82",
"v6.12.81",
"v6.12.80",
"v6.12.79",
"v6.12.78",
"v6.12.77",
"v6.18.43",
"v6.18.42",
"v6.18.41",
"v6.18.40",
"v6.18.39",
"v6.18.38",
"v6.18.37",
"v6.18.36",
"v6.18.35",
"v6.18.34",
"v6.18.33",
"v6.18.32",
"v6.18.31",
"v6.18.30",
"v6.18.29",
"v6.18.28",
"v6.18.27",
"v6.18.26",
"v6.18.25",
"v6.18.24",
"v6.18.23",
"v6.18.22",
"v6.18.21",
"v6.18.20",
"v6.18.19",
"v6.18.18",
"v6.18.17",
"v6.19.14",
"v6.19.13",
"v6.19.12",
"v6.19.11",
"v6.19.10",
"v6.19.9",
"v6.19.8",
"v6.19.7"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74459.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.15.216"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.16.0"
},
{
"fixed": "6.1.183"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.2.0"
},
{
"fixed": "6.6.151"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.7.0"
},
{
"fixed": "6.12.103"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.13.0"
},
{
"fixed": "6.18.44"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.19.0"
},
{
"fixed": "7.1.8"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74459.json"
}
}
],
"modified": "2026-10-08T02:51:54.701088007Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/0ef136ba052101243ba117a1aca6f4a4c3a81142",
"https://git.kernel.org/stable/c/19c6c8c6cd5dd14fab5fcd744584812a57cbb78d",
"https://git.kernel.org/stable/c/21da1a374769751546cc131e58a4d8bd968f57b2",
"https://git.kernel.org/stable/c/7a0cf2b2497c757c3cb1286eddf2986abb0d387b",
"https://git.kernel.org/stable/c/b85e5c310382803d27adf6fe6554d4208bc8951c",
"https://git.kernel.org/stable/c/c311f17c261fd375ddf5755f2ebe1f022c19c5b0",
"https://git.kernel.org/stable/c/c7ddf119544eea2d8409e12471c3f9f36ca02e3f",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74459.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-74459",
"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/2026/74xxx/CVE-2026-74459.json"
}
},
"related_cves": [
{
"value": "CVE-2026-74459",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 98360,
"published_at": "2026-08-15T12:27:00.653+00:00"
}