On 10/22/19 3:51 AM, Julia Lawall wrote:
On Tue, 22 Oct 2019, Suwan Kim wrote:
iso_buffer should be set to NULL after use and free in the while loop.
In the case of isochronous URB in the while loop, iso_buffer is
allocated and after sending it to server, buffer is deallocated. And
then, if the next URB in the while loop is not a isochronous pipe,
iso_buffer still holds the previously deallocated buffer address and
kfree tries to free wrong buffer address.
Fixes: ea44d190764b ("usbip: Implement SG support to vhci-hcd and stub driver")
Reported-by: kbuild test robot <lkp@xxxxxxxxx>
Reported-by: Julia Lawall <julia.lawall@xxxxxxx>
Signed-off-by: Suwan Kim <suwan.kim027@xxxxxxxxx>
Reviewed-by: Julia Lawall <julia.lawall@xxxxxxx>
---
v1 - v2: Move the setting NULL after kfree() and add the comment
---
Thanks.
Acked-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
thanks,
-- Shuah
