------------[ cut here ]------------
kernel BUG at mm/kmsan/kmsan.c:266!
invalid opcode: 0000 [#1] SMP
CPU: 1 PID: 11296 Comm: syz-executor.0 Not tainted 5.0.0+ #11
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:kmsan_memcpy_memmove_metadata+0xefe/0xf10 mm/kmsan/kmsan.c:281
Code: fb ff ff 48 8b 04 25 10 90 c3 8b 4c 01 e0 4c 8b 45 d0 48 bf 00 00 00 00 80 77 00 00 49 89 fa e9 54 f9 ff ff 0f 0b 0f 0b 0f 0b <0f> 0b 0f 0b 0f 0b 0f 0b 0f 0b 0f 0b 66 0f 1f 44 00 00 55 48 89 e5
RSP: 0018:ffff888053b3f4a0 EFLAGS: 00010246
RAX: 00000000001c467a RBX: ffff8880da7a2000 RCX: 0000000000000000
RDX: 000000005a7b2000 RSI: ffff88805a7b2000 RDI: 0000778000000000
RBP: ffff888053b3f500 R08: ffff88805a7a2000 R09: 0000000000000000
BUG: non-zero pgtables_bytes on freeing mm: 28672
R10: 0000000000000160 R11: ffffffff8837aec0 R12: ffff88805a7a2000
R13: ffff88805a7a2000 R14: ffffc900202c1000 R15: 0000000000002000
FS:  00007f5e73e7a700(0000) GS:ffff88812fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004cdeb0 CR3: 0000000090bfe000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 kmsan_memcpy_metadata+0xb/0x10 mm/kmsan/kmsan.c:324
 __msan_memcpy+0x58/0x70 mm/kmsan/kmsan_instr.c:139
 default_write_copy_kernel+0xdf/0x150 sound/core/pcm_lib.c:1946
 interleaved_copy+0x1bf/0x1f0 sound/core/pcm_lib.c:2007
 __snd_pcm_lib_xfer+0x233b/0x33b0 sound/core/pcm_lib.c:2222
 snd_pcm_oss_write3+0x367/0x530 sound/core/oss/pcm_oss.c:1243
 io_playback_transfer+0x18d/0x840 sound/core/oss/io.c:47
 snd_pcm_plug_write_transfer+0x598/0x750 sound/core/oss/pcm_plugin.c:620
 snd_pcm_oss_write2+0x29c/0x9d0 sound/core/oss/pcm_oss.c:1372
 snd_pcm_oss_write1 sound/core/oss/pcm_oss.c:1438 [inline]
 snd_pcm_oss_write+0x60f/0x1450 sound/core/oss/pcm_oss.c:2781
 __vfs_write+0x1e2/0xc20 fs/read_write.c:485
 vfs_write+0x481/0x920 fs/read_write.c:549
 ksys_write fs/read_write.c:598 [inline]
 __do_sys_write fs/read_write.c:610 [inline]
 __se_sys_write+0x17a/0x370 fs/read_write.c:607
 __x64_sys_write+0x4a/0x70 fs/read_write.c:607
 do_syscall_64+0xbc/0xf0 arch/x86/entry/common.c:291
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x457f29
Code: ad b8 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 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f5e73e79c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457f29
RDX: 00000000fffffefd RSI: 00000000200000c0 RDI: 0000000000000004
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5e73e7a6d4
R13: 00000000004c6ed7 R14: 00000000004dc798 R15: 00000000ffffffff
Modules linked in:
---[ end trace 800a06623107ca3a ]---
RIP: 0010:kmsan_memcpy_memmove_metadata+0xefe/0xf10 mm/kmsan/kmsan.c:281
Code: fb ff ff 48 8b 04 25 10 90 c3 8b 4c 01 e0 4c 8b 45 d0 48 bf 00 00 00 00 80 77 00 00 49 89 fa e9 54 f9 ff ff 0f 0b 0f 0b 0f 0b <0f> 0b 0f 0b 0f 0b 0f 0b 0f 0b 0f 0b 66 0f 1f 44 00 00 55 48 89 e5
RSP: 0018:ffff888053b3f4a0 EFLAGS: 00010246
RAX: 00000000001c467a RBX: ffff8880da7a2000 RCX: 0000000000000000
RDX: 000000005a7b2000 RSI: ffff88805a7b2000 RDI: 0000778000000000
RBP: ffff888053b3f500 R08: ffff88805a7a2000 R09: 0000000000000000
R10: 0000000000000160 R11: ffffffff8837aec0 R12: ffff88805a7a2000
R13: ffff88805a7a2000 R14: ffffc900202c1000 R15: 0000000000002000
FS:  00007f5e73e7a700(0000) GS:ffff88812fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004cdeb0 CR3: 0000000090bfe000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400