Answer in brief
CVE-2025-71073 records a Unknown severity vulnerability in Input: lkkbd - disable pending work before freeing device. 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 | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8cf889d45bbc8477206dda78c8f757ea8ff68213 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <3a7cd1397c209076c371d53bf39a55c138f62342 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cffc4e29b1e2d44ab094cf142d7c461ff09b9104 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e58c88f0cb2d8ed89de78f6f17409d29cfab6c5c | 8cf889d45bbc8477206dda78c8f757ea8ff68213, 3a7cd1397c209076c371d53bf39a55c138f62342, cffc4e29b1e2d44ab094cf142d7c461ff09b9104, e58c88f0cb2d8ed89de78f6f17409d29cfab6c5c |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
Published upstream
Jan 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 21, 2026
In the Linux kernel, the following vulnerability has been resolved: Input: lkkbd - disable pending work before freeing device lkkbd_interrupt() schedules lk->tq via schedule_work(), and the work handler lkkbd_reinit() dereferences the lkkbd structure and its serio/input_dev fields. lkkbd_disconnect() and error paths in lkkbd_connect() free the lkkbd structure without preventing the reinit work from being queued again until serio_close() returns. This can allow the work handler to run after the structure has been freed, leading to a potential use-after-free. Use disable_work_sync() instead of cancel_work_sync() to ensure the reinit work cannot be re-queued, and call it both in lkkbd_disconnect() and in lkkbd_connect() error paths after serio_open().
Quoted source text, attributed separately from HOL analysis.