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| author | Ravulapati Vishnu Vardhan Rao <quic_visr@quicinc.com> | 2023-03-04 13:37:02 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2023-03-05 23:36:38 +0000 |
| commit | e5e7e398f6bb7918dab0612eb6991f7bae95520d (patch) | |
| tree | 7199be5b3b8a57c2a3dcd276027c502530e8b292 /sound/Kconfig | |
| parent | 65882134bc622a1e57bd5928ac588855ea2e3ddd (diff) | |
ASoC: codecs: tx-macro: Fix for KASAN: slab-out-of-bounds
When we run syzkaller we get below Out of Bound.
"KASAN: slab-out-of-bounds Read in regcache_flat_read"
Below is the backtrace of the issue:
dump_backtrace+0x0/0x4c8
show_stack+0x34/0x44
dump_stack_lvl+0xd8/0x118
print_address_description+0x30/0x2d8
kasan_report+0x158/0x198
__asan_report_load4_noabort+0x44/0x50
regcache_flat_read+0x10c/0x110
regcache_read+0xf4/0x180
_regmap_read+0xc4/0x278
_regmap_update_bits+0x130/0x290
regmap_update_bits_base+0xc0/0x15c
snd_soc_component_update_bits+0xa8/0x22c
snd_soc_component_write_field+0x68/0xd4
tx_macro_digital_mute+0xec/0x140
Actually There is no need to have decimator with 32 bits.
By limiting the variable with short type u8 issue is resolved.
Signed-off-by: Ravulapati Vishnu Vardhan Rao <quic_visr@quicinc.com>
Link: https://lore.kernel.org/r/20230304080702.609-1-quic_visr@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/Kconfig')
0 files changed, 0 insertions, 0 deletions