CVE-2025-71073
HIGHAttack Surface
CVSS Vector Breakdown
Description
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().
Weakness Classification (1)
Affected Software (20)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fb76f871d6155c52ccc0401bbde77dd20b83d0c1 |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8cf889d45bbc8477206dda78c8f757ea8ff68213 |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3a7cd1397c209076c371d53bf39a55c138f62342 |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cffc4e29b1e2d44ab094cf142d7c461ff09b9104 |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e58c88f0cb2d8ed89de78f6f17409d29cfab6c5c |
| Linux | Linux | 2.6.12 |
| linux | linux_kernel | 2.6.12.1 – 6.12.64 |
| linux | linux_kernel | 2.6.12 |
| linux | linux_kernel | 2.6.12 |
| linux | linux_kernel | 2.6.12 |
| linux | linux_kernel | 2.6.12 |
| linux | linux_kernel | 2.6.12 |
| linux | linux_kernel | 6.19 |
| linux | linux_kernel | 6.19 |
| linux | linux_kernel | 6.19 |
| linux | linux_kernel | 6.19 |
| linux | linux_kernel | 6.19 |
| linux | linux_kernel | 6.19 |
| linux | linux_kernel | 6.19 |
| linux | linux_kernel | 6.19 |