WARNING: CPU: 1 PID: 21215 at sound/core/pcm_lib.c:1635 snd_pcm_hw_param_first+0x289/0x690 sound/core/pcm_lib.c:1635 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 21215 Comm: syz-executor0 Not tainted 4.15.0-rc6-mm1+ #50 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x137/0x198 lib/dump_stack.c:53 panic+0x1e4/0x41c kernel/panic.c:183 __warn+0x1dc/0x200 kernel/panic.c:547 report_bug+0x211/0x2d0 lib/bug.c:184 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:178 fixup_bug arch/x86/kernel/traps.c:247 [inline] do_error_trap+0x249/0x290 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1079 RIP: 0010:snd_pcm_hw_param_first+0x289/0x690 sound/core/pcm_lib.c:1635 RSP: 0018:ffff8801caaa7640 EFLAGS: 00010293 RAX: ffff8801c26a43c0 RBX: ffff8801c76f6dc0 RCX: ffffffff83b45549 RDX: 0000000000000000 RSI: 1ffff10039554ea5 RDI: ffff8801c76f6de8 RBP: ffff8801caaa7690 R08: ffffed0039554e37 R09: ffff8801caaa71b0 R10: 0000000000000001 R11: ffffed0039554e36 R12: 000000000000000d R13: 00000000ffffffea R14: 0000000000000005 R15: 0000000000002000 snd_pcm_hw_param_near.constprop.28+0x66e/0x790 sound/core/oss/pcm_oss.c:457 snd_pcm_oss_change_params+0x1513/0x3210 sound/core/oss/pcm_oss.c:969 snd_pcm_oss_make_ready+0xaa/0x130 sound/core/oss/pcm_oss.c:1128 snd_pcm_oss_sync+0x1b2/0x710 sound/core/oss/pcm_oss.c:1638 snd_pcm_oss_release+0x20b/0x280 sound/core/oss/pcm_oss.c:2431 __fput+0x291/0x6e0 fs/file_table.c:209 ____fput+0x15/0x20 fs/file_table.c:243 task_work_run+0x122/0x1a0 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x7f4/0x2da0 kernel/exit.c:869 do_group_exit+0x108/0x320 kernel/exit.c:972 get_signal+0x5e9/0x1460 kernel/signal.c:2337 do_signal+0x7f/0x1980 arch/x86/kernel/signal.c:809 exit_to_usermode_loop+0x1aa/0x210 arch/x86/entry/common.c:161 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] syscall_return_slowpath+0x383/0x430 arch/x86/entry/common.c:264 entry_SYSCALL_64_fastpath+0x98/0x9a RIP: 0033:0x452ac9 RSP: 002b:00007f9953e2ece8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000071bf80 RCX: 0000000000452ac9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000071bf80 RBP: 000000000071bf80 R08: 000000000000046f R09: 000000000071bf58 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000a2f7ef R14: 00007f9953e2f9c0 R15: 0000000000000002 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..