# CVE-2026-97968: hwmon: (corsair-cpro) Create debugfs entries after hwmon registration

CVE-2026-97968 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-97968, released September 29, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-97968
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0017
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 25, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-97968

## Description

In the Linux kernel, the following vulnerability has been resolved:  hwmon: (corsair-cpro) Create debugfs entries after hwmon registration  ccp_debugfs_init() registers debugfs files whose private data is the devm allocated ccp.  It runs before hwmon_device_register_with_info(), so when that registration fails, ccp_probe() returns with the files still in place.  The HID core then frees ccp, and ccp_remove() is not called for a failed probe, so nothing removes them later either.  Reading one of the files dereferences the freed pointer.  Create the debugfs entries only after the hwmon device has been registered, so no failing path can leave them behind.  The two version queries stay where they are.  They send USB commands without holding ccp->mutex, which is only safe as long as nothing else can call send_usb_cmd(); once the hwmon device is registered its callbacks can do so concurrently.  Only the debugfs creation moves, and it is told which queries succeeded.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.111-1 | [DEBIAN-CVE-2026-97968](https://patchblox.com/security/data/fix/linux/debian-cve-2026-97968.md) | Sep 29, 2026 |
| Linux | linux Debian 14 | 7.2.7-1 | [DEBIAN-CVE-2026-97968](https://patchblox.com/security/data/fix/linux/debian-cve-2026-97968.md) | Sep 29, 2026 |
| Linux | linux-6.12 Debian 12.15 (bookworm) | 6.12.111-1~deb12u1 | [DEBIAN-CVE-2026-97968](https://patchblox.com/security/data/fix/linux/debian-cve-2026-97968.md) | Sep 29, 2026 |

---

Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.