Warning: Permanently added '10.128.0.72' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   40.291768] audit: type=1400 audit(1600628383.851:8): avc:  denied  { execmem } for  pid=6466 comm="syz-executor789" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   40.298263] ================================================================================
[   40.320440] UBSAN: Undefined behaviour in ./include/linux/log2.h:61:13
[   40.327103] shift exponent 64 is too large for 64-bit type 'long unsigned int'
[   40.334533] CPU: 0 PID: 6466 Comm: syz-executor789 Not tainted 4.19.146-syzkaller #0
[   40.342388] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   40.351720] Call Trace:
[   40.354310]  dump_stack+0x22c/0x33e
[   40.357921]  ubsan_epilogue+0xe/0x3a
[   40.361616]  __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250
[   40.367759]  ? hub_port_disable+0x3a6/0x600
[   40.372062]  ? rate_src_frames+0x21f/0x2a0
[   40.376278]  ? rate_transfer+0x2b0/0x2b0
[   40.380317]  ? plug_client_size+0x1ca/0x3e0
[   40.384622]  snd_pcm_oss_change_params_locked.cold+0x6d/0x11a
[   40.390499]  ? snd_pcm_oss_open+0x50/0x50
[   40.394626]  ? snd_pcm_oss_get_active_substream+0x142/0x1c0
[   40.400339]  ? ww_mutex_unlock+0x2f0/0x2f0
[   40.404558]  ? __mutex_unlock_slowpath+0xea/0x660
[   40.409396]  snd_pcm_oss_get_active_substream+0x164/0x1c0
[   40.414915]  snd_pcm_oss_set_channels+0x244/0x380
[   40.419739]  ? snd_pcm_oss_get_formats+0x340/0x340
[   40.425615]  snd_pcm_oss_ioctl+0x12dd/0x33c0
[   40.430006]  ? find_held_lock+0x2d/0x110
[   40.434062]  ? snd_pcm_oss_release+0x300/0x300
[   40.438646]  ? debug_check_no_obj_freed+0x201/0x482
[   40.443650]  ? lock_downgrade+0x750/0x750
[   40.447780]  ? snd_pcm_oss_release+0x300/0x300
[   40.452343]  do_vfs_ioctl+0xcdb/0x12e0
[   40.456214]  ? selinux_file_ioctl+0x44f/0x5e0
[   40.460699]  ? ioctl_preallocate+0x200/0x200
[   40.465091]  ? selinux_parse_skb.constprop.0+0x1f0/0x1f0
[   40.470524]  ? walk_component+0x706/0xda0
[   40.474658]  ? putname+0xe1/0x130
[   40.478109]  ? rcu_read_lock_sched_held+0x174/0x1e0
[   40.483109]  ? putname+0xe1/0x130
[   40.486554]  ksys_ioctl+0x9b/0xc0
[   40.490003]  __x64_sys_ioctl+0x6f/0xb0
[   40.493873]  do_syscall_64+0xf9/0x670
[   40.497676]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   40.502845] RIP: 0033:0x440269
[   40.506019] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[   40.525857] RSP: 002b:00007ffc5f0ff428 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   40.533542] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440269
[   40.540804] RDX: 00000