HID: mcp2221: prevent a buffer overflow in mcp_smbus_write() (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.22 % · percentile 13 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: HID: mcp2221: prevent a buffer overflow in mcp_smbus_write() Smatch Warning: drivers/hid/hid-mcp2221.c:388 mcp_smbus_write() error: __memcpy() '&mcp->txbuf[5]' too small (59 vs 255) drivers/hid/hid-mcp2221.c:388 mcp_smbus_write() error: __memcpy() 'buf' too small (34 vs 255) The 'len' variable can take a value between 0-255 as it can come from data->block[0] and it is user data. So add an bound check to prevent a buffer overflow in memcpy().
Weaknesses (CWE)
- CWE-787 — Out-of-bounds Write
References
- https://git.kernel.org/stable/c/66c8e816f2f2ca4a61b406503bd10bad1b35f72f
- https://git.kernel.org/stable/c/91443c669d280937968f0aa4edefa741cfe35314
- https://git.kernel.org/stable/c/6402116a7b5ec80fa40fd145a80c813019cd555f
- https://git.kernel.org/stable/c/3c0f8a59f2cc8841ee6653399a77f4f3e6e9a270
- https://git.kernel.org/stable/c/62ac2473553a00229e67bdf3cb023b62cf7f5a9a
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2022-55397
- GCVE · GCVE-0-2022-50131
CERT-FR advisories
- CERTFR-2026-AVI-0081 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1009 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0649 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0607 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0587 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.7 < 5.10.137cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.61cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.18.18cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.19 < 5.19.2
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 67a95c21463d066060b0f66d65a75d45bb386ffb < 66c8e816f2f2ca4a61b406503bd10bad1b35f72f ; affected 67a95c21463d066060b0f66d65a75d45bb386ffb < 91443c669d280937968f0aa4edefa741cfe35314 ; affected 67a95c21463d066060b0f66d65a75d45bb386ffb < 6402116a7b5ec80fa40fd145a80c813019cd555f ; affected 67a95c21463d066060b0f66d65a75d45bb386ffb < 3c0f8a59f2cc8841ee6653399a77f4f3e6e9a270 ; affected 67a95c21463d066060b0f66d65a75d45bb386ffb < 62ac2473553a00229e67bdf3cb023b62cf7f5a9a |
| Linux · Linux | affected 5.7 ; unaffected 0 < 5.7 ; unaffected 5.10.137 ≤ 5.10.* ; unaffected 5.15.61 ≤ 5.15.* ; unaffected 5.18.18 ≤ 5.18.* ; unaffected 5.19.2 ≤ 5.19.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |