can: ems_usb: validate CPC message lengths
In the Linux kernel, the following vulnerability has been resolved: can: ems_usb: validate CPC message lengths ems_usb_read_bulk_callback() walks CPC messages packed in one USB receive buffer. Check that each declared message fits in the URB payload. Also require the type-specific payload to cover the fields used by the CAN, state, error and overrun handlers.
CVE-2026-74460
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-74460
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "702171adeed3607ee9603ec30ce081411e36ae42",
"lessThan": "1c380a332e342b7d58c86c4f556cb0823b16a9b8",
"versionType": "git"
},
{
"status": "affected",
"version": "702171adeed3607ee9603ec30ce081411e36ae42",
"lessThan": "bb3cc8da8a2967c0f8e83d148fc6870b19fa32c6",
"versionType": "git"
},
{
"status": "affected",
"version": "702171adeed3607ee9603ec30ce081411e36ae42",
"lessThan": "db5655287d78f00daf98888a520bb8da4d30126d",
"versionType": "git"
},
{
"status": "affected",
"version": "702171adeed3607ee9603ec30ce081411e36ae42",
"lessThan": "ce8125566b1d0b0f16449407e014addf451804ea",
"versionType": "git"
},
{
"status": "affected",
"version": "702171adeed3607ee9603ec30ce081411e36ae42",
"lessThan": "0b9090717c7e2184e2c427bbcc752f295116ac1d",
"versionType": "git"
},
{
"status": "affected",
"version": "702171adeed3607ee9603ec30ce081411e36ae42",
"lessThan": "0b23144c59c126beb4a7761a85a194ae0fe668a5",
"versionType": "git"
},
{
"status": "affected",
"version": "702171adeed3607ee9603ec30ce081411e36ae42",
"lessThan": "df3ac2a672a5284441f120d486acabdd6740fc2a",
"versionType": "git"
},
{
"status": "affected",
"version": "702171adeed3607ee9603ec30ce081411e36ae42",
"lessThan": "02925f51377f2a42a6724f00549167499c9302e5",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/can/usb/ems_usb.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.32"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.32",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.271",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.216",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.183",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.151",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.103",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.44",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.8",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/can/usb/ems_usb.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-74460
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #8257 · Revision 1
- Added to Heist Feed
- Publisher date