================================================================================ UBSAN: shift-out-of-bounds in sound/core/oss/pcm_oss.c:705:23 shift exponent 8512 is too large for 32-bit type 'int' CPU: 1 PID: 10002 Comm: syz-executor.3 Not tainted 5.10.0-rc7-next-20201210-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:120 ubsan_epilogue+0xb/0x5a lib/ubsan.c:148 __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 lib/ubsan.c:395 snd_pcm_oss_period_size sound/core/oss/pcm_oss.c:705 [inline] snd_pcm_oss_change_params_locked.cold+0x55/0x78 sound/core/oss/pcm_oss.c:925 snd_pcm_oss_change_params sound/core/oss/pcm_oss.c:1084 [inline] snd_pcm_oss_make_ready+0xe7/0x1b0 sound/core/oss/pcm_oss.c:1143 snd_pcm_oss_set_trigger.isra.0+0x30f/0x6e0 sound/core/oss/pcm_oss.c:2047 snd_pcm_oss_poll+0x661/0xb10 sound/core/oss/pcm_oss.c:2831 vfs_poll include/linux/poll.h:90 [inline] do_select+0x935/0x16e0 fs/select.c:534 core_sys_select+0x3fa/0xa10 fs/select.c:677 do_pselect.constprop.0+0x17b/0x1c0 fs/select.c:759 __do_sys_pselect6 fs/select.c:800 [inline] __se_sys_pselect6 fs/select.c:791 [inline] __x64_sys_pselect6+0x1c5/0x2b0 fs/select.c:791 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e159 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f236fa6ac68 EFLAGS: 00000246 ORIG_RAX: 000000000000010e RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 000000000045e159 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000040 RBP: 000000000119bfd8 R08: 0000000020000200 R09: 0000000000000000 R10: 0000000020000240 R11: 0000000000000246 R12: 000000000119bf8c R13: 00007ffdf4ee161f R14: 00007f236fa6b9c0 R15: 000000000119bf8c ================================================================================