83ddd4cc8f
[ Upstream commit cf59e1e4c79bf741905484cdb13c130b53576a16 ]
Shifting signed 32-bit value by 31 bits is undefined, so changing
significant bit to unsigned. The UBSAN warning calltrace like below:
UBSAN: shift-out-of-bounds in sound/core/seq/seq_clientmgr.c:509:22
left shift of 1 by 31 places cannot be represented in type 'int'
...
Call Trace:
<TASK>
dump_stack_lvl+0x8d/0xcf
ubsan_epilogue+0xa/0x44
__ubsan_handle_shift_out_of_bounds+0x1e7/0x208
snd_seq_deliver_single_event.constprop.21+0x191/0x2f0
snd_seq_deliver_event+0x1a2/0x350
snd_seq_kernel_client_dispatch+0x8b/0xb0
snd_seq_client_notify_subscription+0x72/0xa0
snd_seq_ioctl_subscribe_port+0x128/0x160
snd_seq_kernel_client_ctl+0xce/0xf0
snd_seq_oss_create_client+0x109/0x15b
alsa_seq_oss_init+0x11c/0x1aa
do_one_initcall+0x80/0x440
kernel_init_freeable+0x370/0x3c3
kernel_init+0x1b/0x190
ret_from_fork+0x1f/0x30
</TASK>
Fixes:
|
||
|---|---|---|
| .. | ||
| intel/avs | ||
| sof | ||
| asequencer.h | ||
| asoc.h | ||
| asound_fm.h | ||
| asound.h | ||
| compress_offload.h | ||
| compress_params.h | ||
| emu10k1.h | ||
| firewire.h | ||
| hdsp.h | ||
| hdspm.h | ||
| sb16_csp.h | ||
| sfnt_info.h | ||
| skl-tplg-interface.h | ||
| snd_ar_tokens.h | ||
| snd_sst_tokens.h | ||
| tlv.h | ||
| usb_stream.h | ||