Messages in this thread |  | | Date | Wed, 17 Jan 2024 12:06:22 +0530 | | Subject | Re: [RFC PATCH] usb: dwc3: gadget: Fix NULL pointer dereference in dwc3_gadget_suspend | | From | UTTKARSH AGGARWAL <> |
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On 1/17/2024 6:49 AM, Thinh Nguyen wrote: > Do you have the dmesg log of this NULL pointer dereference? > Thanks, > Thinh
Hi Thinh,
Here is the dmesg log:
[ 149.524338][ T843] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000028 … [ 149.525872][ T843] Workqueue: pm pm_runtime_work [ 149.525886][ T843] pstate: 824000c5 (Nzcv daIF +PAN -UAO +TCO -DIT -SSBS BTYPE=--) [ 149.525893][ T843] pc : dwc3_gadget_suspend+0x4c/0xb8 [ 149.525900][ T843] lr : dwc3_gadget_suspend+0x34/0xb8 … [ 149.526003][ T843] Call trace: [ 149.526008][ T843] dwc3_gadget_suspend+0x4c/0xb8 [ 149.526015][ T843] dwc3_suspend_common+0x58/0x230 [ 149.526021][ T843] dwc3_runtime_suspend+0x34/0x50 [ 149.526027][ T843] pm_generic_runtime_suspend+0x40/0x58 [ 149.526034][ T843] __rpm_callback+0x94/0x3e0 [ 149.526040][ T843] rpm_suspend+0x2e4/0x720 [ 149.526047][ T843] __pm_runtime_suspend+0x6c/0x100 [ 149.526054][ T843] dwc3_runtime_idle+0x48/0x64 [ 149.526060][ T843] rpm_idle+0x20c/0x310 [ 149.526067][ T843] pm_runtime_work+0x80/0xac [ 149.526075][ T843] process_one_work+0x1e4/0x43c [ 149.526084][ T843] worker_thread+0x25c/0x430 [ 149.526091][ T843] kthread+0x104/0x1d4 [ 149.526099][ T843] ret_from_fork+0x10/0x20 ======================================================= Process: adbd, [affinity: 0xff] cpu: 6 pid: 4907 start: 0xffffff888079b840 ===================================================== Task name: adbd [affinity: 0xff] pid: 4907 cpu: 6 prio: 120 start: ffffff888079b840 state: 0x2[D] exit_state: 0x0 stack base: 0xffffffc02db20000 Last_enqueued_ts: 149.523808841 Last_sleep_ts: 149.523859362 Stack: [<ffffffc0091cd558>] __switch_to+0x174 [<ffffffc0091cdd40>] __schedule+0x5ec [<ffffffc0091ce19c>] schedule+0x7c [<ffffffc0091d7438>] schedule_timeout+0x44 [<ffffffc0091ce858>] wait_for_common+0xd8 [<ffffffc0091ce774>] wait_for_completion+0x18 [<ffffffc0082b23dc>] kthread_stop+0x78 [<ffffffc0083134a0>] free_irq+0x184 [<ffffffc008bc7438>] dwc3_gadget_stop+0x40 [<ffffffc008c12228>] gadget_unbind_driver+0xfc [<ffffffc008ab76ac>] device_release_driver_internal[jt]+0x1d4 [<ffffffc008ab78dc>] driver_detach+0x90 [<ffffffc008ab519c>] bus_remove_driver+0x78 [<ffffffc008ab9170>] driver_unregister[jt]+0x44 [<ffffffc008c11838>] usb_gadget_unregister_driver+0x20 [<ffffffc008c0c1e0>] unregister_gadget_item+0x30 [<ffffffc008c256a8>] ffs_data_clear[jt]+0x88
Thanks,
Uttkarsh
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