]> git.karo-electronics.de Git - linux-beck.git/commit
USB: serial: io_edgeport: fix NULL-deref at open
authorJohan Hovold <johan@kernel.org>
Tue, 3 Jan 2017 15:39:42 +0000 (16:39 +0100)
committerJohan Hovold <johan@kernel.org>
Wed, 4 Jan 2017 09:37:15 +0000 (10:37 +0100)
commit0dd408425eb21ddf26a692b3c8044c9e7d1a7948
tree99f3d745a30dc8ec00cb8c567a0d09a61fa36496
parentc4ac4496e835b78a45dfbf74f6173932217e4116
USB: serial: io_edgeport: fix NULL-deref at open

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: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
drivers/usb/serial/io_edgeport.c