Answer in brief
CVE-2026-80782 records a Unknown severity vulnerability in HID: magicmouse: do not keep a stale msc->input if no input is claimed. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f1a9a149abc86903e81dd1b2e720f3f89874384b <c3597923932bb90d4fc2186aef552f6677175e4a || >=f1a9a149abc86903e81dd1b2e720f3f89874384b <e0c224c93d10ee38854fdf24c815108aedd3dcb3 || >=f1a9a149abc86903e81dd1b2e720f3f89874384b <403cc9bd6ccb9fbe68d501c3236e5a6dd5504e14 || >=f1a9a149abc86903e81dd1b2e720f3f89874384b <3d7a7bac4c75f25b2513505a0ac5ba909588ed2b || >=f1a9a149abc86903e81dd1b2e720f3f89874384b <9bdf8c7bfd79f1090e61d28f969b32880fd77bb3 || >=f1a9a149abc86903e81dd1b2e720f3f89874384b <15b60ade825c8ce9ec560048a4ae3747e4572be3 || >=f1a9a149abc86903e81dd1b2e720f3f89874384b <0bf253e9ac994cb5329bc87b00bb4eeca9136791 || >=f1a9a149abc86903e81dd1b2e720f3f89874384b <2ef16934e069d5f771e989d6ee5c3ece5042f3cd || >=f1a9a149abc86903e81dd1b2e720f3f89874384b <0af3b89705688af01aa06025b84fa7a1e06ba6cc || 0e55072e7c63a6569cab1447e9025d160abd9dd9 || >=3.8.7 <3.9 | c3597923932bb90d4fc2186aef552f6677175e4a, e0c224c93d10ee38854fdf24c815108aedd3dcb3, 403cc9bd6ccb9fbe68d501c3236e5a6dd5504e14, 3d7a7bac4c75f25b2513505a0ac5ba909588ed2b, 9bdf8c7bfd79f1090e61d28f969b32880fd77bb3, 15b60ade825c8ce9ec560048a4ae3747e4572be3, 0bf253e9ac994cb5329bc87b00bb4eeca9136791, 2ef16934e069d5f771e989d6ee5c3ece5042f3cd, 0af3b89705688af01aa06025b84fa7a1e06ba6cc, 3.9 |
| Linux/Linuxgeneric | 3.9 | Not reported |
Published upstream
Sep 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 4, 2026
In the Linux kernel, the following vulnerability has been resolved: HID: magicmouse: do not keep a stale msc->input if no input is claimed magicmouse_input_mapping() caches the first hid_input's input_dev in msc->input while the report descriptor is parsed, and the rest of the driver treats a non-NULL msc->input as proof that an input device was registered. That does not hold on the hid-input error path. If hidinput_connect() fails -- for instance because input_register_device() returns an error -- it unwinds through hidinput_disconnect(), which frees every input_dev it created, including the one cached in msc->input. The failure does not abort the probe. hid_connect() only skips the claim: if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev, connect_mask & HID_CONNECT_HIDINPUT_FORCE)) hdev->claimed |= HID_CLAIMED_INPUT; and the "device has no listeners" bailout below it does not fire for this driver, which sets ->raw_event; on the USB Magic Mouse 2 / Magic Trackpad 2 paths hidraw and hiddev are claimed as well. hid_hw_start() therefore returns 0 and magicmouse_probe() continues with msc->input pointing at freed memory. Being non-NULL, it passes the "input not registered" check in probe and the NULL checks in ->raw_event and ->event, so the next input report dereferences freed memory. Clear msc->input when the HID core did not claim an input device, so the existing NULL checks cover this case as well.
Quoted source text, attributed separately from HOL analysis.