Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 48e0d3735aa557a8adaf94632ca3cf78798e8505 before 26ca30516b2c49dd04c134cbdf122311c538df98; affected 48e0d3735aa557a8adaf94632ca3cf78798e8505 before 012936502a9cb7b0604e85bb961eb15e2bb40dd9; affected 48e0d3735aa557a8adaf94632ca3cf78798e8505 before ee53a7a88027cea765c68f3b00a50b8f58d6f786; affected 48e0d3735aa557a8adaf94632ca3cf78798e8505 before f26273428657ef4ca74740e578ae45a3be492f6f; affected 48e0d3735aa557a8adaf94632ca3cf78798e8505 before b636aff94a67be46582d4321d11743f1a10cc2c1; affected 48e0d3735aa557a8adaf94632ca3cf78798e8505 before 3a7d4959560a2ee493ef222e3b63d359365f41ec; affected 48e0d3735aa557a8adaf94632ca3cf78798e8505 before d28f4091ea7ec3510fd6a3c6d433234e7a2bef14 |
| Linux / Linux | affected 5.2; unaffected 0 before 5.2; unaffected 5.4.243 through 5.4.*; unaffected 5.10.180 through 5.10.*; unaffected 5.15.111 through 5.15.*; unaffected 6.1.28 through 6.1.*; unaffected 6.2.15 through 6.2.*; unaffected 6.3.2 through 6.3.*; unaffected 6.4 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/26ca30516b2c49dd04c134cbdf122311c538df98
- https://git.kernel.org/stable/c/012936502a9cb7b0604e85bb961eb15e2bb40dd9
- https://git.kernel.org/stable/c/ee53a7a88027cea765c68f3b00a50b8f58d6f786
- https://git.kernel.org/stable/c/f26273428657ef4ca74740e578ae45a3be492f6f
- https://git.kernel.org/stable/c/b636aff94a67be46582d4321d11743f1a10cc2c1
- https://git.kernel.org/stable/c/3a7d4959560a2ee493ef222e3b63d359365f41ec
- https://git.kernel.org/stable/c/d28f4091ea7ec3510fd6a3c6d433234e7a2bef14