=====================================================
BUG: KMSAN: uninit-value in snd_pcm_hw_rule_add+0x94d/0x1140 sound/core/pcm_lib.c:1154
 snd_pcm_hw_rule_add+0x94d/0x1140 sound/core/pcm_lib.c:1154
 loopback_open+0x8c4/0x1170 sound/drivers/aloop.c:1229
 snd_pcm_open_substream+0x2159/0x3830 sound/core/pcm_native.c:2676
 snd_pcm_oss_open_file sound/core/oss/pcm_oss.c:2448 [inline]
 snd_pcm_oss_open+0x17d9/0x2df0 sound/core/oss/pcm_oss.c:2529
 soundcore_open+0xb9c/0xca0 sound/sound_core.c:593
 chrdev_open+0xb91/0xd40 fs/char_dev.c:414
 do_dentry_open+0x1128/0x1bf0 fs/open.c:822
 vfs_open+0xaf/0xe0 fs/open.c:957
 do_open fs/namei.c:3426 [inline]
 path_openat+0x52af/0x5ea0 fs/namei.c:3559
 do_filp_open+0x306/0x760 fs/namei.c:3586
 do_sys_openat2+0x263/0x8f0 fs/open.c:1212
 do_sys_open fs/open.c:1228 [inline]
 __do_sys_openat fs/open.c:1244 [inline]
 __se_sys_openat fs/open.c:1239 [inline]
 __x64_sys_openat+0x35f/0x3c0 fs/open.c:1239
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x54/0xd0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x44/0xae

Local variable sample.i created at:
 perf_log_itrace_start kernel/events/core.c:9069 [inline]
 event_sched_in+0x132b/0x35c0 kernel/events/core.c:2557
 group_sched_in kernel/events/core.c:2595 [inline]
 merge_sched_in kernel/events/core.c:3746 [inline]
 visit_groups_merge+0x2919/0x7460 kernel/events/core.c:3696

CPU: 1 PID: 5939 Comm: syz-executor.3 Tainted: G        W         5.16.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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