CVE-2023-54159

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux48e0d3735aa557a8adaf94632ca3cf78798e8505 < 26ca30516b2c49dd04c134cbdf122311c538df98affected
LinuxLinux48e0d3735aa557a8adaf94632ca3cf78798e8505 < 012936502a9cb7b0604e85bb961eb15e2bb40dd9affected
LinuxLinux48e0d3735aa557a8adaf94632ca3cf78798e8505 < ee53a7a88027cea765c68f3b00a50b8f58d6f786affected
LinuxLinux48e0d3735aa557a8adaf94632ca3cf78798e8505 < f26273428657ef4ca74740e578ae45a3be492f6faffected
LinuxLinux48e0d3735aa557a8adaf94632ca3cf78798e8505 < b636aff94a67be46582d4321d11743f1a10cc2c1affected
LinuxLinux48e0d3735aa557a8adaf94632ca3cf78798e8505 < 3a7d4959560a2ee493ef222e3b63d359365f41ecaffected
LinuxLinux48e0d3735aa557a8adaf94632ca3cf78798e8505 < d28f4091ea7ec3510fd6a3c6d433234e7a2bef14affected
LinuxLinux5.2affected
LinuxLinux0 < 5.2unaffected
LinuxLinux5.4.243 <= 5.4.*unaffected
LinuxLinux5.10.180 <= 5.10.*unaffected
LinuxLinux5.15.111 <= 5.15.*unaffected
LinuxLinux6.1.28 <= 6.1.*unaffected
LinuxLinux6.2.15 <= 6.2.*unaffected
LinuxLinux6.3.2 <= 6.3.*unaffected
LinuxLinux6.4 <= *unaffected

Weaknesses

References