linux: In the Linux kernel, the following vulnerability has been resolved: HID: mcp-2221: prevent UAF in delayed work If t...
CVE-2023-53459 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53459, released October 1, 2025. It is not reported as exploited. Patch Radar priority: High.
In the Linux kernel, the following vulnerability has been resolved: HID: mcp-2221: prevent UAF in delayed work If the device is plugged/unplugged without giving time for mcp_init_work() to complete, we might kick in the devm free code path and thus have unavailable struct mcp_2221 while in delayed work. Canceling the delayed_work item is enough to solve the issue, because cancel_delayed_work_sync will prevent the work item to requeue itself.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 13.5 (trixie) | 6.3.7-1 | DEBIAN-CVE-2023-53459 | Oct 1, 2025 |
| linux · Debian 14 | 6.3.7-1 | DEBIAN-CVE-2023-53459 | Oct 1, 2025 |
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