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USB: serial: pl2303: fix NULL-deref at open
authorJohan Hovold <johan@kernel.org>
Tue, 3 Jan 2017 15:40:00 +0000 (16:40 +0100)
committerJohan Hovold <johan@kernel.org>
Wed, 4 Jan 2017 09:43:56 +0000 (10:43 +0100)
commit76ab439ed1b68778e9059c79ecc5d14de76c89a8
tree6ef06a8b28a032bcba36504d840450e1d5cc9e6atree | snapshot (tar.gz zip)
parent5afeef2366db14587b65558bbfd5a067542e07fbcommit | diff
USB: serial: pl2303: fix NULL-deref at open

Fix NULL-pointer dereference in open() should a type-0 or type-1 device
lack the expected endpoints:

Unable to handle kernel NULL pointer dereference at virtual address 00000030
...
PC is at pl2303_open+0x38/0xec [pl2303]

Note that a missing interrupt-in endpoint would have caused open() to
fail.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
drivers/usb/serial/pl2303.c diff | blob | blame | history