8a473c39ae
When the cml_rt1011_rt5682_dailink[].codecs pointer is overridden by
a quirk with a devm allocated structure and the probe is deferred,
in the next probe we will see an use-after-free condition
(verified with KASAN). This can be avoided by using statically allocated
configurations - which simplifies the code quite a bit as well.
KASAN issue fixed.
[ 23.301373] cml_rt1011_rt5682 cml_rt1011_rt5682: sof_rt1011_quirk = f
[ 23.301875] ==================================================================
[ 23.302018] BUG: KASAN: use-after-free in snd_cml_rt1011_probe+0x23a/0x3d0 [snd_soc_cml_rt1011_rt5682]
[ 23.302178] Read of size 8 at addr ffff8881ec6acae0 by task kworker/0:2/105
[ 23.302320] CPU: 0 PID: 105 Comm: kworker/0:2 Not tainted 5.7.0-rc7-test+ #3
[ 23.302322] Hardware name: Google Helios/Helios, BIOS 01/21/2020
[ 23.302329] Workqueue: events deferred_probe_work_func
[ 23.302331] Call Trace:
[ 23.302339] dump_stack+0x76/0xa0
[ 23.302345] print_address_description.constprop.0.cold+0xd3/0x43e
[ 23.302351] ? _raw_spin_lock_irqsave+0x7b/0xd0
[ 23.302355] ? _raw_spin_trylock_bh+0xf0/0xf0
[ 23.302362] ? snd_cml_rt1011_probe+0x23a/0x3d0 [snd_soc_cml_rt1011_rt5682]
[ 23.302365] __kasan_report.cold+0x37/0x86
[ 23.302371] ? snd_cml_rt1011_probe+0x23a/0x3d0 [snd_soc_cml_rt1011_rt5682]
[ 23.302375] kasan_report+0x38/0x50
[ 23.302382] snd_cml_rt1011_probe+0x23a/0x3d0 [snd_soc_cml_rt1011_rt5682]
[ 23.302389] platform_drv_probe+0x66/0xc0
Fixes:
|
||
|---|---|---|
| .. | ||
| atom | ||
| baytrail | ||
| boards | ||
| common | ||
| haswell | ||
| keembay | ||
| skylake | ||
| Kconfig | ||
| Makefile | ||