ded85b0c0e
Upon module load, a kthread is created targeting the
pvr2_context_thread_func function, which may call pvr2_context_destroy
and thus call kfree() on the context object. However, that might happen
before the usb hub_event handler is able to notify the driver. This
patch adds a sanity check before the invalid read reported by syzbot,
within the context disconnection call stack.
Reported-and-tested-by: syzbot+621409285c4156a009b3@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/000000000000a02a4205fff8eb92@google.com/
Fixes:
|
||
|---|---|---|
| .. | ||
| airspy | ||
| as102 | ||
| au0828 | ||
| b2c2 | ||
| cx231xx | ||
| dvb-usb | ||
| dvb-usb-v2 | ||
| em28xx | ||
| go7007 | ||
| gspca | ||
| hackrf | ||
| hdpvr | ||
| msi2500 | ||
| pvrusb2 | ||
| pwc | ||
| s2255 | ||
| siano | ||
| stk1160 | ||
| ttusb-budget | ||
| ttusb-dec | ||
| usbtv | ||
| uvc | ||
| Kconfig | ||
| Makefile | ||