]> git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/commit
USB: iowarrior: fix NULL-deref at probe
authorJohan Hovold <johan@kernel.org>
Tue, 7 Mar 2017 15:11:03 +0000 (16:11 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 9 Mar 2017 09:25:37 +0000 (10:25 +0100)
commitb7321e81fc369abe353cf094d4f0dc2fe11ab95f
treead028bde06e21e8c234b757fb3180d5df4715148
parentfd567653bdb908009b650f079bfd4b63169e2ac4
USB: iowarrior: fix NULL-deref at probe

Make sure to check for the required interrupt-in endpoint to avoid
dereferencing a NULL-pointer should a malicious device lack such an
endpoint.

Note that a fairly recent change purported to fix this issue, but added
an insufficient test on the number of endpoints only, a test which can
now be removed.

Fixes: 4ec0ef3a8212 ("USB: iowarrior: fix oops with malicious USB descriptors")
Fixes: 946b960d13c1 ("USB: add driver for iowarrior devices.")
Cc: stable <stable@vger.kernel.org> # 2.6.21
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/usb/misc/iowarrior.c