CVE-2026-89623HID: mcp2221: stop device IO before hid_hw_stop
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: HID: mcp2221: stop device IO before hid_hw_stop Quiesce device IO at the start of the devm cleanup callback mcp2221_hid_unregister() so that incoming HID reports cannot race with hardware teardown during probe failure or device removal, addressing a potential use-after-free. Guard the call to hid_device_io_stop() with io_started. On normal removal hid_device_remove() has already cleared io_started before the devres group is released, so an unconditional call would otherwise hit the !io_started path and emit a spurious "io already stopped" warning on every removal. The guard preserves the probe-failure balancing, where io_started is still set after hid_device_io_start(), while staying silent on the normal removal path.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from d4b50ac06ea6e47bdd2b04e97d1090c673c80645 before 85d963499f1feeea287c0a37c3eac3fc1898eca9; from d4b50ac06ea6e47bdd2b04e97d1090c673c80645 before 0ae90a19e6b5a8557d25d95facb7e01c9c07af38; from d4b50ac06ea6e47bdd2b04e97d1090c673c80645 before c99ba6c234d4d537c317336376b78c088174034a; from d4b50ac06ea6e47bdd2b04e97d1090c673c80645 before 2eda1513f573945c1e3a0090341f3d28740463b1; from d4b50ac06ea6e47bdd2b04e97d1090c673c80645 before dca151633c0fde90935311c60e7cfc064aa56134 | CNA record |
References
- https://git.kernel.org/stable/c/85d963499f1feeea287c0a37c3eac3fc1898eca9
- https://git.kernel.org/stable/c/0ae90a19e6b5a8557d25d95facb7e01c9c07af38
- https://git.kernel.org/stable/c/c99ba6c234d4d537c317336376b78c088174034a
- https://git.kernel.org/stable/c/2eda1513f573945c1e3a0090341f3d28740463b1
- https://git.kernel.org/stable/c/dca151633c0fde90935311c60e7cfc064aa56134
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.