binder: 9653:9658 transaction failed 29189/-22, size 112-24 line 3138
binder: 9655:9657 BC_FREE_BUFFER u0000000000000000 no match
audit: type=1400 audit(1572838555.633:31): avc:  denied  { syslog } for  pid=9660 comm="syz-executor.2" capability=34  scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=capability2 permissive=1
------------[ cut here ]------------
kernel BUG at drivers/android/binder_alloc.c:1108!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 9667 Comm: syz-executor.2 Not tainted 4.9.194+ #0
task: 00000000e1c50ea3 task.stack: 00000000a702f947
RIP: 0010:[<ffffffff8223a8fb>]  [<00000000d5e49247>] binder_alloc_do_buffer_copy+0xcb/0x500 drivers/android/binder_alloc.c:1108
RSP: 0018:ffff8801ca9174a8  EFLAGS: 00010216
RAX: 0000000000040000 RBX: 0000000020ffc000 RCX: ffffc9000017a000
RDX: 00000000000003fb RSI: ffffffff8223a8fb RDI: ffff8801c686a1d8
RBP: ffff8801ca917528 R08: ffff8801ca9175a8 R09: 0000000000000008
R10: ffffed0039522f11 R11: ffff8801ca91788f R12: 0000000000000080
R13: 0000000000000088 R14: 0000000000000008 R15: ffff8801ca9175a8
FS:  00007f9c03d0f700(0000) GS:ffff8801db700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2eb21000 CR3: 00000001cab3a000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffffffff81249811 ffff8801ca917568 0000000000000246 0000000020000040
 ffff8801d3d16050 ffff8801c8c9ca58 00ff8801ca917870 ffff8801c8c9ca00
 ffffffff814fdcb6 ffff8801c53e5400 0000000000000088 ffff8801ca9175a8
Call Trace:
 [<000000002bfbd14e>] binder_alloc_copy_from_buffer+0x37/0x42 drivers/android/binder_alloc.c:1154
 [<000000006a52314e>] binder_validate_ptr+0xc5/0x1b0 drivers/android/binder.c:2335
 [<000000000c3df209>] binder_transaction+0x20a4/0x5890 drivers/android/binder.c:3444
 [<00000000f6c60f58>] binder_thread_write+0x730/0x20e0 drivers/android/binder.c:3906
 [<00000000ae8eb97b>] binder_ioctl_write_read drivers/android/binder.c:4854 [inline]
 [<00000000ae8eb97b>] binder_ioctl+0xecd/0x1720 drivers/android/binder.c:5030
 [<000000004774dcf9>] vfs_ioctl fs/ioctl.c:43 [inline]
 [<000000004774dcf9>] file_ioctl fs/ioctl.c:493 [inline]
 [<000000004774dcf9>] do_vfs_ioctl+0xb87/0x11d0 fs/ioctl.c:677
 [<000000009839d678>] SYSC_ioctl fs/ioctl.c:694 [inline]
 [<000000009839d678>] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685
 [<00000000d08ed266>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288
 [<00000000aaa84cd2>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 0a 04 00 00 4d 8b 64 24 58 49 29 dc e8 0f 7e 0e ff 4d 39 e6 76 07 e8 05 7e 0e ff <0f> 0b e8 fe 7d 0e ff 4c 8b 6d d0 4d 29 f4 4d 39 e5 77 e8 e8 ed 
RIP  [<00000000d5e49247>] binder_alloc_do_buffer_copy+0xcb/0x500 drivers/android/binder_alloc.c:1108
 RSP <ffff8801ca9174a8>
---[ end trace 3fff2e5fb11df647 ]---