can: ems_usb: validate CPC message lengths
Summary
| CVE | CVE-2026-74460 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-15 13:17:50 UTC |
| Updated | 2026-08-19 17:21:02 UTC |
| Description | 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. |
Risk And Classification
EPSS: 0.001680000 probability, percentile 0.065320000 (date 2026-08-19)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 702171adeed3607ee9603ec30ce081411e36ae42 bb3cc8da8a2967c0f8e83d148fc6870b19fa32c6 git | Not specified |
| CNA | Linux | Linux | affected 702171adeed3607ee9603ec30ce081411e36ae42 db5655287d78f00daf98888a520bb8da4d30126d git | Not specified |
| CNA | Linux | Linux | affected 702171adeed3607ee9603ec30ce081411e36ae42 ce8125566b1d0b0f16449407e014addf451804ea git | Not specified |
| CNA | Linux | Linux | affected 702171adeed3607ee9603ec30ce081411e36ae42 0b9090717c7e2184e2c427bbcc752f295116ac1d git | Not specified |
| CNA | Linux | Linux | affected 702171adeed3607ee9603ec30ce081411e36ae42 0b23144c59c126beb4a7761a85a194ae0fe668a5 git | Not specified |
| CNA | Linux | Linux | affected 702171adeed3607ee9603ec30ce081411e36ae42 df3ac2a672a5284441f120d486acabdd6740fc2a git | Not specified |
| CNA | Linux | Linux | affected 702171adeed3607ee9603ec30ce081411e36ae42 02925f51377f2a42a6724f00549167499c9302e5 git | Not specified |
| CNA | Linux | Linux | affected 2.6.32 | Not specified |
| CNA | Linux | Linux | unaffected 2.6.32 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.216 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.183 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.151 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.103 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.44 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1.8 7.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/ce8125566b1d0b0f16449407e014addf451804ea | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/0b23144c59c126beb4a7761a85a194ae0fe668a5 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/02925f51377f2a42a6724f00549167499c9302e5 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/0b9090717c7e2184e2c427bbcc752f295116ac1d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/df3ac2a672a5284441f120d486acabdd6740fc2a | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/bb3cc8da8a2967c0f8e83d148fc6870b19fa32c6 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/db5655287d78f00daf98888a520bb8da4d30126d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.