Forwarded: Re: [syzbot] [usb?] KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups (2)

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Subject: Re: [syzbot] [usb?] KASAN: slab-use-after-free Write in usb_anchor_suspend_wakeups (2)
Author: halves@xxxxxxxxxx

#syz test

--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -254,6 +254,9 @@ static int usbtmc_release(struct inode *inode, struct 
file *file)
  list_del(&file_data->file_elem);
 
  spin_unlock_irq(&file_data->data->dev_lock);
+
+ /* flush anchored URBs */
+ usbtmc_draw_down(file_data);
  mutex_unlock(&file_data->data->io_mutex);
 
  kref_put(&file_data->data->kref, usbtmc_delete);
-- 

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