Hi,
On Thu, Jun 27, 2019 at 12:01 PM Kristian Evensen
<kristian.evensen@xxxxxxxxx> wrote:
>
> commit 904d88d743b0c94092c5117955eab695df8109e8 upstream.
>
> The syzbot reported
>
> Call Trace:
> __dump_stack lib/dump_stack.c:77 [inline]
> dump_stack+0xca/0x13e lib/dump_stack.c:113
> print_address_description+0x67/0x231 mm/kasan/report.c:188
> __kasan_report.cold+0x1a/0x32 mm/kasan/report.c:317
> kasan_report+0xe/0x20 mm/kasan/common.c:614
> qmi_wwan_probe+0x342/0x360 drivers/net/usb/qmi_wwan.c:1417
> usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361
> really_probe+0x281/0x660 drivers/base/dd.c:509
> driver_probe_device+0x104/0x210 drivers/base/dd.c:670
> __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:777
> bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454
>
> Caused by too many confusing indirections and casts.
> id->driver_info is a pointer stored in a long. We want the
> pointer here, not the address of it.
>
> Thanks-to: Hillf Danton <hdanton@xxxxxxxx>
> Reported-by: syzbot+b68605d7fadd21510de1@xxxxxxxxxxxxxxxxxxxxxxxxx
> Cc: Kristian Evensen <kristian.evensen@xxxxxxxxx>
> Fixes: e4bf63482c30 ("qmi_wwan: Add quirk for Quectel dynamic config")
> Signed-off-by: Bjørn Mork <bjorn@xxxxxxx>
>
> [Upstream commit did not apply because I shuffled two lines in the
> backport. The fixes tag for 4.14 is 3a6a5107ceb3.]
>
> Signed-off-by: Kristian Evensen <kristian.evensen@xxxxxxxxx>
> ---
I see now that I forgot to set the correct prefix for the patch. The
prefix should be PATCH 4.14. Sorry about that. Please let me know if I
should resubmit.
BR,
Kristian
