Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: Remove WARN_ON for device endpoint command timeouts This commit addresses a rarely observed endpoint command timeout which causes kernel panic due to warn when 'panic_on_warn' is enabled and unnecessary call trace prints when 'panic_on_warn' is disabled. It is seen during fast software-controlled connect/disconnect testcases. The following is one such endpoint command timeout that we observed: 1. Connect ======= ->dwc3_thread_interrupt ->dwc3_ep0_interrupt ->configfs_composite_setup ->composite_setup ->usb_ep_queue ->dwc3_gadget_ep0_queue ->__dwc3_gadget_ep0_queue ->__dwc3_ep0_do_control_data ->dwc3_send_gadget_ep_cmd 2. Disconnect ========== ->dwc3_thread_interrupt ->dwc3_gadget_disconnect_interrupt ->dwc3_ep0_reset_state ->dwc3_ep0_end_control_data ->dwc3_send_gadget_ep_cmd In the issue scenario, in Exynos platforms, we observed that control transfers for the previous connect have not yet been completed and end transfer command sent as a part of the disconnect sequence and processing of USB_ENDPOINT_HALT feature request from the host timeout. This maybe an expected scenario since the controller is processing EP commands sent as a part of the previous connect. It maybe better to remove WARN_ON in all places where device endpoint commands are sent to avoid unnecessary kernel panic due to warn.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 72246da40f3719af3bfd104a2365b32537c27d83 before dfe40159eec6ca63b40133bfa783eee2e3ed829f; affected 72246da40f3719af3bfd104a2365b32537c27d83 before 5a1a847d841505dba2bd85602daf5c218e1d85b8; affected 72246da40f3719af3bfd104a2365b32537c27d83 before 84c95dbf5bece56086cdb65a64162af35158bdd9; affected 72246da40f3719af3bfd104a2365b32537c27d83 before f49697dfba2915a9ff36f94604eb76fa61413929; affected 72246da40f3719af3bfd104a2365b32537c27d83 before db27482b9db340402e05d4e9b75352bbaca51af2; affected 72246da40f3719af3bfd104a2365b32537c27d83 before 45eae113dccaf8e502090ecf5b3d9e9b805add6f |
| Linux / Linux | affected 3.2; unaffected 0 before 3.2; unaffected 5.15.190 through 5.15.*; unaffected 6.1.149 through 6.1.*; unaffected 6.6.103 through 6.6.*; unaffected 6.12.44 through 6.12.*; unaffected 6.16.4 through 6.16.*; unaffected 6.17 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/dfe40159eec6ca63b40133bfa783eee2e3ed829f
- https://git.kernel.org/stable/c/5a1a847d841505dba2bd85602daf5c218e1d85b8
- https://git.kernel.org/stable/c/84c95dbf5bece56086cdb65a64162af35158bdd9
- https://git.kernel.org/stable/c/f49697dfba2915a9ff36f94604eb76fa61413929
- https://git.kernel.org/stable/c/db27482b9db340402e05d4e9b75352bbaca51af2
- https://git.kernel.org/stable/c/45eae113dccaf8e502090ecf5b3d9e9b805add6f
ADP enrichment
No English description supplied.
No English description supplied.