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UBSAN: Undefined behaviour in sound/core/oss/pcm_oss.c:720:23
shift exponent 4096 is too large for 32-bit type 'int'
CPU: 0 PID: 14705 Comm: syz-executor.5 Not tainted 4.19.145-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+0xf7/0x11a sound/core/oss/pcm_oss.c:943
 snd_pcm_oss_change_params sound/core/oss/pcm_oss.c:1102 [inline]
 snd_pcm_oss_mmap+0x442/0x550 sound/core/oss/pcm_oss.c:2893
 call_mmap include/linux/fs.h:1826 [inline]
 mmap_region+0xb62/0x1510 mm/mmap.c:1757
 do_mmap+0x8e8/0x1080 mm/mmap.c:1530
 do_mmap_pgoff include/linux/mm.h:2326 [inline]
 vm_mmap_pgoff+0x197/0x200 mm/util.c:357
 ksys_mmap_pgoff+0x2d1/0x660 mm/mmap.c:1580
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45d5f9
Code: 5d 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 2b b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fb74366cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000020f00 RCX: 000000000045d5f9
RDX: 0000000000000001 RSI: 0000000000001000 RDI: 0000000020ffc000
RBP: 000000000118cf98 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000012 R11: 0000000000000246 R12: 000000000118cf4c
R13: 00007ffecfaa73ff R14: 00007fb74366d9c0 R15: 000000000118cf4c
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