================================================================================
UBSAN: Undefined behaviour in sound/core/oss/pcm_oss.c:720:23
shift exponent 65532 is too large for 32-bit type 'int'
CPU: 0 PID: 16539 Comm: syz-executor.0 Not tainted 4.19.152-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x22c/0x33e lib/dump_stack.c:118
 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161
 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422
 snd_pcm_oss_period_size sound/core/oss/pcm_oss.c:720 [inline]
 snd_pcm_oss_change_params_locked.cold+0xc1/0x11a sound/core/oss/pcm_oss.c:943
 snd_pcm_oss_change_params sound/core/oss/pcm_oss.c:1102 [inline]
 snd_pcm_oss_make_ready+0xe7/0x1b0 sound/core/oss/pcm_oss.c:1161
 snd_pcm_oss_get_ptr sound/core/oss/pcm_oss.c:2175 [inline]
 snd_pcm_oss_ioctl+0x23c/0x3450 sound/core/oss/pcm_oss.c:2698
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:501 [inline]
 do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688
 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705
 __do_sys_ioctl fs/ioctl.c:712 [inline]
 __se_sys_ioctl fs/ioctl.c:710 [inline]
 __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45de59
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:00007f452fd1ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000016040 RCX: 000000000045de59
RDX: 0000000020000040 RSI: 00000000800c5011 RDI: 0000000000000003
RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffef0fa484f R14: 00007f452fd1b9c0 R15: 000000000118bf2c
================================================================================
EXT4-fs (loop1): VFS: Can't find ext4 filesystem
EXT4-fs (loop0): VFS: Can't find ext4 filesystem
EXT4-fs (loop0): VFS: Can't find ext4 filesystem
x_tables: ip6_tables: CLASSIFY target: used from hooks PREROUTING, but only usable from FORWARD/OUTPUT/POSTROUTING