user/sven/linux.git/sound, branch v3.18.75

ALSA: usx2y: Suppress kernel warning at page allocation failures

2017-10-12T07:18:03Z

commit 7682e399485fe19622b6fd82510b1f4551e48a25 upstream. The usx2y driver allocates the stream read/write buffers in continuous pages depending on the stream setup, and this may spew the kernel warning messages with a stack trace like: WARNING: CPU: 1 PID: 1846 at mm/page_alloc.c:3883 __alloc_pages_slowpath+0x1ef2/0x2d70 Modules linked in: CPU: 1 PID: 1846 Comm: kworker/1:2 Not tainted .... It may confuse user as if it were any serious error, although this is no fatal error and the driver handles the error case gracefully. Since the driver has already some sanity check of the given size (128 and 256 pages), it can't pass any crazy value. So it's merely page fragmentation. This patch adds __GFP_NOWARN to each caller for suppressing such kernel warnings. The original issue was spotted by syzkaller. Reported-by: Andrey Konovalov Tested-by: Andrey Konovalov Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

ALSA: usb-audio: Check out-of-bounds access by corrupted buffer descriptor

2017-10-12T07:18:01Z

commit bfc81a8bc18e3c4ba0cbaa7666ff76be2f998991 upstream. When a USB-audio device receives a maliciously adjusted or corrupted buffer descriptor, the USB-audio driver may access an out-of-bounce value at its parser. This was detected by syzkaller, something like: BUG: KASAN: slab-out-of-bounds in usb_audio_probe+0x27b2/0x2ab0 Read of size 1 at addr ffff88006b83a9e8 by task kworker/0:1/24 CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.14.0-rc1-42251-gebb2c2437d80 #224 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:16 dump_stack+0x292/0x395 lib/dump_stack.c:52 print_address_description+0x78/0x280 mm/kasan/report.c:252 kasan_report_error mm/kasan/report.c:351 kasan_report+0x22f/0x340 mm/kasan/report.c:409 __asan_report_load1_noabort+0x19/0x20 mm/kasan/report.c:427 snd_usb_create_streams sound/usb/card.c:248 usb_audio_probe+0x27b2/0x2ab0 sound/usb/card.c:605 usb_probe_interface+0x35d/0x8e0 drivers/usb/core/driver.c:361 really_probe drivers/base/dd.c:413 driver_probe_device+0x610/0xa00 drivers/base/dd.c:557 __device_attach_driver+0x230/0x290 drivers/base/dd.c:653 bus_for_each_drv+0x161/0x210 drivers/base/bus.c:463 __device_attach+0x26e/0x3d0 drivers/base/dd.c:710 device_initial_probe+0x1f/0x30 drivers/base/dd.c:757 bus_probe_device+0x1eb/0x290 drivers/base/bus.c:523 device_add+0xd0b/0x1660 drivers/base/core.c:1835 usb_set_configuration+0x104e/0x1870 drivers/usb/core/message.c:1932 generic_probe+0x73/0xe0 drivers/usb/core/generic.c:174 usb_probe_device+0xaf/0xe0 drivers/usb/core/driver.c:266 really_probe drivers/base/dd.c:413 driver_probe_device+0x610/0xa00 drivers/base/dd.c:557 __device_attach_driver+0x230/0x290 drivers/base/dd.c:653 bus_for_each_drv+0x161/0x210 drivers/base/bus.c:463 __device_attach+0x26e/0x3d0 drivers/base/dd.c:710 device_initial_probe+0x1f/0x30 drivers/base/dd.c:757 bus_probe_device+0x1eb/0x290 drivers/base/bus.c:523 device_add+0xd0b/0x1660 drivers/base/core.c:1835 usb_new_device+0x7b8/0x1020 drivers/usb/core/hub.c:2457 hub_port_connect drivers/usb/core/hub.c:4903 hub_port_connect_change drivers/usb/core/hub.c:5009 port_event drivers/usb/core/hub.c:5115 hub_event+0x194d/0x3740 drivers/usb/core/hub.c:5195 process_one_work+0xc7f/0x1db0 kernel/workqueue.c:2119 worker_thread+0x221/0x1850 kernel/workqueue.c:2253 kthread+0x3a1/0x470 kernel/kthread.c:231 ret_from_fork+0x2a/0x40 arch/x86/entry/entry_64.S:431 This patch adds the checks of out-of-bounce accesses at appropriate places and bails out when it goes out of the given buffer. Reported-by: Andrey Konovalov Tested-by: Andrey Konovalov Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

ALSA: au88x0: avoid theoretical uninitialized access

2017-10-08T08:11:22Z

commit 13f99ebdd602ebdafb909e15ec6ffb1e34690167 upstream. The latest gcc-7.0.1 snapshot points out that we if nr_ch is zero, we never initialize some variables: sound/pci/au88x0/au88x0_core.c: In function 'vortex_adb_allocroute': sound/pci/au88x0/au88x0_core.c:2304:68: error: 'mix[0]' may be used uninitialized in this function [-Werror=maybe-uninitialized] sound/pci/au88x0/au88x0_core.c:2305:58: error: 'src[0]' may be used uninitialized in this function [-Werror=maybe-uninitialized] I assume this can never happen in practice, but adding a check here doesn't hurt either and avoids the warning. The code has been unchanged since the start of git history. Signed-off-by: Arnd Bergmann Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

ALSA: msnd: Optimize / harden DSP and MIDI loops

2017-09-13T21:03:47Z

commit 20e2b791796bd68816fa115f12be5320de2b8021 upstream. The ISA msnd drivers have loops fetching the ring-buffer head, tail and size values inside the loops. Such codes are inefficient and fragile. This patch optimizes it, and also adds the sanity check to avoid the endless loops. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196131 Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196133 Signed-off-by: Takashi Iwai Signed-off-by: grygorii tertychnyi Signed-off-by: Greg Kroah-Hartman

ALSA: au88x0: Fix zero clear of stream->resources

2017-09-02T05:05:45Z

commit 639db596165746ca87bbcb56559b094fd9042890 upstream. There are a few calls of memset() to stream->resources, but they all are called in a wrong size, sizeof(unsigned char) * VORTEX_RESOURCE_LAST, while this field is a u32 array. This may leave the memories not zero-cleared. Fix it by replacing them with a simpler sizeof(stream->resources) instead. Reported-by: David Binderman Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

ALSA: hda - Add stereo mic quirk for Lenovo G50-70 (17aa:3978)

2017-08-30T08:16:55Z

commit bbba6f9d3da357bbabc6fda81e99ff5584500e76 upstream. Lenovo G50-70 (17aa:3978) with Conexant codec chip requires the similar workaround for the inverted stereo dmic like other Lenovo models. Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1020657 Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

ALSA: core: Fix unexpected error at replacing user TLV

2017-08-30T08:16:55Z

commit 88c54cdf61f508ebcf8da2d819f5dfc03e954d1d upstream. When user tries to replace the user-defined control TLV, the kernel checks the change of its content via memcmp(). The problem is that the kernel passes the return value from memcmp() as is. memcmp() gives a non-zero negative value depending on the comparison result, and this shall be recognized as an error code. The patch covers that corner-case, return 1 properly for the changed TLV. Fixes: 8aa9b586e420 ("[ALSA] Control API - more robust TLV implementation") Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

ALSA: usb-audio: Apply sample rate quirk to Sennheiser headset

2017-08-25T00:00:10Z

commit a8e800fe0f68bc28ce309914f47e432742b865ed upstream. A Senheisser headset requires the typical sample-rate quirk for avoiding spurious errors from inquiring the current sample rate like: usb 1-1: 2:1: cannot get freq at ep 0x4 usb 1-1: 3:1: cannot get freq at ep 0x83 The USB ID 1395:740a has to be added to the entries in snd_usb_get_sample_rate_quirk(). Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1052580 Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman

ASoC: do not close shared backend dailink

2017-08-11T16:30:13Z

commit b1cd2e34c69a2f3988786af451b6e17967c293a0 upstream. Multiple frontend dailinks may be connected to a backend dailink at the same time. When one of frontend dailinks is closed, the associated backend dailink should not be closed if it is connected to other active frontend dailinks. Change ensures that backend dailink is closed only after all connected frontend dailinks are closed. Signed-off-by: Gopikrishnaiah Anandan Signed-off-by: Banajit Goswami Signed-off-by: Patrick Lai Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman

ALSA: hda - Fix speaker output from VAIO VPCL14M1R

2017-08-11T16:30:13Z

commit 3f3c371421e601fa93b6cb7fb52da9ad59ec90b4 upstream. Sony VAIO VPCL14M1R needs the quirk to make the speaker working properly. Tested-by: Dmitriy Signed-off-by: Sergei A. Trusov Signed-off-by: Takashi Iwai Signed-off-by: Greg Kroah-Hartman