kernel/linux.git, branch v3.18.76

Linux 3.18.76

2017-10-18T07:15:17+00:00

Revert "usb: gadget: inode.c: fix unbalanced spin_lock in ep0_write"

2017-10-18T07:15:17+00:00

This reverts commit abb540b5397674243994c5327146b6fed7339b71 which is commit b7bd98b7db9f upstream. I had added it to make another patch apply cleanly, but as Ben points out, that was wrong. Reported-by: Ben Hutchings Reported-by: kbuild test robot Cc: David Eccher Cc: Felipe Balbi Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

ALSA: seq: Fix missing NULL check at remove_events ioctl

2017-10-18T07:15:16+00:00

commit 030e2c78d3a91dd0d27fef37e91950dde333eba1 upstream. snd_seq_ioctl_remove_events() calls snd_seq_fifo_clear() unconditionally even if there is no FIFO assigned, and this leads to an Oops due to NULL dereference. The fix is just to add a proper NULL check. Reported-by: Dmitry Vyukov Tested-by: Dmitry Vyukov Signed-off-by: Takashi Iwai Cc: Mark Salyzyn Cc: Dmitry Vyukov Signed-off-by: Greg Kroah-Hartman

USB: serial: console: fix use-after-free after failed setup

2017-10-18T07:15:16+00:00

commit 299d7572e46f98534033a9e65973f13ad1ce9047 upstream. Make sure to reset the USB-console port pointer when console setup fails in order to avoid having the struct usb_serial be prematurely freed by the console code when the device is later disconnected. Fixes: 73e487fdb75f ("[PATCH] USB console: fix disconnection issues") Acked-by: Greg Kroah-Hartman Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

USB: serial: qcserial: add Dell DW5818, DW5819

2017-10-18T07:15:16+00:00

commit f5d9644c5fca7d8e8972268598bb516a7eae17f9 upstream. Dell Wireless 5819/5818 devices are re-branded Sierra Wireless MC74 series which will by default boot with vid 0x413c and pid's 0x81cf, 0x81d0, 0x81d1, 0x81d2. Signed-off-by: Shrirang Bagul Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

USB: serial: option: add support for TP-Link LTE module

2017-10-18T07:15:16+00:00

commit 837ddc4793a69b256ac5e781a5e729b448a8d983 upstream. This commit adds support for TP-Link LTE mPCIe module is used in in TP-Link MR200v1, MR6400v1 and v2 routers. Signed-off-by: Henryk Heisig Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

USB: serial: cp210x: add support for ELV TFD500

2017-10-18T07:15:16+00:00

commit c496ad835c31ad639b6865714270b3003df031f6 upstream. Add the USB device id for the ELV TFD500 data logger. Signed-off-by: Andreas Engel Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman

fix unbalanced page refcounting in bio_map_user_iov

2017-10-18T07:15:16+00:00

commit 95d78c28b5a85bacbc29b8dba7c04babb9b0d467 upstream. bio_map_user_iov and bio_unmap_user do unbalanced pages refcounting if IO vector has small consecutive buffers belonging to the same page. bio_add_pc_page merges them into one, but the page reference is never dropped. Signed-off-by: Vitaly Mayatskikh Signed-off-by: Al Viro Signed-off-by: Greg Kroah-Hartman

direct-io: Prevent NULL pointer access in submit_page_section

2017-10-18T07:15:16+00:00

commit 899f0429c7d3eed886406cd72182bee3b96aa1f9 upstream. In the code added to function submit_page_section by commit b1058b981, sdio->bio can currently be NULL when calling dio_bio_submit. This then leads to a NULL pointer access in dio_bio_submit, so check for a NULL bio in submit_page_section before trying to submit it instead. Fixes xfstest generic/250 on gfs2. Signed-off-by: Andreas Gruenbacher Reviewed-by: Jan Kara Signed-off-by: Al Viro Signed-off-by: Greg Kroah-Hartman

usb: gadget: composite: Fix use-after-free in usb_composite_overwrite_options

2017-10-18T07:15:16+00:00

commit aec17e1e249567e82b26dafbb86de7d07fde8729 upstream. KASAN enabled configuration reports an error BUG: KASAN: use-after-free in usb_composite_overwrite_options+... [libcomposite] at addr ... Read of size 1 by task ... when some driver is un-bound and then bound again. For example, this happens with FunctionFS driver when "ffs-test" test application is run several times in a row. If the driver has empty manufacturer ID string in initial static data, it is then replaced with generated string. After driver unbinding the generated string is freed, but the driver data still keep that pointer. And if the driver is then bound again, that pointer is re-used for string emptiness check. The fix is to clean up the driver string data upon its unbinding to drop the pointer to freed memory. Fixes: cc2683c318a5 ("usb: gadget: Provide a default implementation of default manufacturer string") Signed-off-by: Andrew Gabbasov Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman