A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-29 03:01:39 -04:00
Code Issues Projects Releases Packages Wiki Activity

USB: serial: io_edgeport: fix NULL-deref at open

Browse source 
Fix NULL-pointer dereference when initialising URBs at open should a
non-EPIC device lack a bulk-in or interrupt-in endpoint.

Unable to handle kernel NULL pointer dereference at virtual address 00000028
...
PC is at edge_open+0x24c/0x3e8 [io_edgeport]

Note that the EPIC-device probe path has the required sanity checks so
this makes those checks partially redundant.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable <[email protected]>
Signed-off-by: Johan Hovold <[email protected]>
This commit is contained in:
Johan Hovold 2017-01-03 16:39:42 +01:00
commit 0dd408425e
1 changed files with 5 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

5
drivers/usb/serial/io_edgeport.c
View file

@ -2751,6 +2751,11 @@ static int edge_startup(struct usb_serial *serial)
EDGE_COMPATIBILITY_MASK1,
EDGE_COMPATIBILITY_MASK2 };
if (serial->num_bulk_in < 1 || serial->num_interrupt_in < 1) {
dev_err(&serial->interface->dev, "missing endpoints\n");
return -ENODEV;
}
dev = serial->dev;
/* create our private serial structure */