# CVE-2023-54159: linux: In the Linux kernel, the following vulnerability has been resolved:  usb: mtu3: fix kernel panic at qmu transfer done...

CVE-2023-54159 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-54159, released December 24, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-54159
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 24, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  usb: mtu3: fix kernel panic at qmu transfer done irq handler  When handle qmu transfer irq, it will unlock @mtu->lock before give back request, if another thread handle disconnect event at the same time, and try to disable ep, it may lock @mtu->lock and free qmu ring, then qmu irq hanlder may get a NULL gpd, avoid the KE by checking gpd's value before handling it.  e.g. qmu done irq on cpu0                 thread running on cpu1  qmu_done_tx()   handle gpd [0]     mtu3_requ_complete()        mtu3_gadget_ep_disable()       unlock @mtu->lock         give back request         lock @mtu->lock                                     mtu3_ep_disable()                                       mtu3_gpd_ring_free()                                    unlock @mtu->lock       lock @mtu->lock     get next gpd [1]  [1]: goto [0] to handle next gpd, and next gpd may be NULL.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.37-1 | [DEBIAN-CVE-2023-54159](https://patchblox.com/security/data/fix/linux/debian-cve-2023-54159.md) | Dec 24, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.3.7-1 | [DEBIAN-CVE-2023-54159](https://patchblox.com/security/data/fix/linux/debian-cve-2023-54159.md) | Dec 24, 2025 |
| Linux | linux Debian 14 | 6.3.7-1 | [DEBIAN-CVE-2023-54159](https://patchblox.com/security/data/fix/linux/debian-cve-2023-54159.md) | Dec 24, 2025 |

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