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Gergo Koteles 9c75601926 ASoC: tas2781: check the validity of prm_no/cfg_no 
commit f32c80d34249e1cfb2e647ab3c8ef38a460c787f upstream.

Add additional checks for program/config numbers to avoid loading from
invalid addresses.

If prm_no/cfg_no is negative, skip uploading program/config.

The tas2781-hda driver caused a NULL pointer dereference after loading
module, and before first runtime_suspend.

the state was:
tas_priv->cur_conf = -1;
tas_priv->tasdevice[i].cur_conf = 0;
program = &(tas_fmw->programs[-1]);

BUG: kernel NULL pointer dereference, address: 0000000000000010
Call Trace:
 <TASK>
 ? __die+0x23/0x70
 ? page_fault_oops+0x171/0x4e0
 ? vprintk_emit+0x175/0x2b0
 ? exc_page_fault+0x7f/0x180
 ? asm_exc_page_fault+0x26/0x30
 ? tasdevice_load_block_kernel+0x21/0x310 [snd_soc_tas2781_fmwlib]
 tasdevice_select_tuningprm_cfg+0x268/0x3a0 [snd_soc_tas2781_fmwlib]
 tasdevice_tuning_switch+0x69/0x710 [snd_soc_tas2781_fmwlib]
 tas2781_hda_playback_hook+0xd4/0x110 [snd_hda_scodec_tas2781_i2c]

Fixes: 915f5eadeb ("ASoC: tas2781: firmware lib")
CC:  <stable@vger.kernel.org>
Signed-off-by: Gergo Koteles <soyer@irl.hu>
Link: https://msgid.link/r/523780155bfdca9bc0acd39efc79ed039454818d.1702591356.git.soyer@irl.hu
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2024-01-01 12:42:40 +00:00
..
ac97 ALSA: ac97: set variables dev_attr_vendor_id to static 2023-08-02 09:27:39 +02:00
aoa ALSA: aoa: Fix typos in PCM fix patch 2023-08-18 09:09:39 +02:00
arm ARM: pxa: fix missing-prototypes warnings 2023-05-26 13:33:05 +02:00
atmel ALSA: Explicitly include correct DT includes 2023-07-16 14:50:56 +02:00
core ALSA: pcm: fix out-of-bounds in snd_pcm_state_names 2023-12-13 18:45:20 +01:00
drivers ASoC: Updates for v6.6 2023-08-28 16:13:03 +02:00
firewire ALSA: firewire: Fix -Wformat-truncation warning for MIDI stream names 2023-09-15 13:22:06 +02:00
hda ALSA: hda: Fix possible null-ptr-deref when assigning a stream 2023-11-28 17:19:43 +00:00
i2c ALSA: i2c/cs8427: fix iec958 mixer control deactivation 2023-04-06 08:09:36 +02:00
isa ALSA: cs4231: Fix -Wformat-truncation warning for longname string 2023-09-15 13:23:01 +02:00
mips ALSA: mips/sgio2audio: Convert to platform remove callback returning void 2023-03-20 13:07:05 +00:00
oss
…
parisc
…
pci ALSA: hda/realtek: Add quirk for ASUS ROG GV302XA 2024-01-01 12:42:40 +00:00
pcmcia ALSA: add HAS_IOPORT dependencies 2023-05-22 16:43:47 +02:00
ppc ALSA: Explicitly include correct DT includes 2023-07-16 14:50:56 +02:00
sh ALSA: sh: Convert to generic PCM copy ops 2023-08-18 12:18:24 +02:00
soc ASoC: tas2781: check the validity of prm_no/cfg_no 2024-01-01 12:42:40 +00:00
sparc ALSA: Explicitly include correct DT includes 2023-07-16 14:50:56 +02:00
spi
…
synth ALSA: emu10k1: fix synthesizer pitch for E-MU cards at 44.1 kHz 2023-06-13 07:42:08 +02:00
usb ALSA: usb-audio: Increase delay in MOTU M quirk 2024-01-01 12:42:38 +00:00
virtio
…
x86
…
xen ALSA: xen: Fix -Wformat-truncation warning 2023-09-15 13:21:35 +02:00
Kconfig This pull request contains the following changes for UML: 2023-09-04 11:32:21 -07:00
Makefile
…
ac97_bus.c ALSA: ac97: Remove redundant driver match function 2023-03-20 08:50:02 +01:00
last.c
…
sound_core.c sound: make all 'class' structures const 2023-06-21 07:29:10 +02:00