EXT4-fs warning (device sda1): verify_group_input:102: Cannot add at group 32635 (only 16 groups) audit: type=1400 audit(1571775320.596:35): avc: denied { transfer } for pid=32089 comm="syz-executor.1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=binder permissive=1 ------------[ cut here ]------------ kernel BUG at drivers/android/binder_alloc.c:1108! invalid opcode: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 32097 Comm: syz-executor.1 Not tainted 4.9.194+ #0 task: 000000008850ab07 task.stack: 0000000022b8c5db RIP: 0010:[] [<00000000bbd4a83f>] binder_alloc_do_buffer_copy+0xcb/0x500 drivers/android/binder_alloc.c:1108 RSP: 0018:ffff88014daaf4a8 EFLAGS: 00010212 RAX: 0000000000040000 RBX: 0000000020ffc000 RCX: ffffc90001937000 RDX: 000000000000c6a5 RSI: ffffffff8223a8fb RDI: ffff8801d650fc58 RBP: ffff88014daaf528 R08: ffff88014daaf5a8 R09: 0000000000000008 R10: ffffed0029b55f12 R11: ffff88014daaf897 R12: 0000000000000130 R13: 00000000000004b8 R14: 0000000000000008 R15: ffff88014daaf5a8 FS: 00007fb6bef1c700(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2db22000 CR3: 0000000149420000 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffff88014daaf560 0000000000000246 ffff8801a5265f00 ffff88014daaf4d0 ffff8801a1a03040 ffff8801d650f358 00ff88014daaf870 ffff8801d650f300 ffffffff814fdcb6 ffff8801c918b380 00000000000004b8 ffff88014daaf5a8 Call Trace: [<00000000b170833d>] binder_alloc_copy_from_buffer+0x37/0x42 drivers/android/binder_alloc.c:1154 [<000000007534239d>] binder_validate_ptr+0xc5/0x1b0 drivers/android/binder.c:2335 [<0000000046d82ca0>] binder_transaction+0x20a4/0x5890 drivers/android/binder.c:3444 [<000000000e488ccf>] binder_thread_write+0x583/0x20e0 drivers/android/binder.c:3917 [<00000000e0f64ae0>] binder_ioctl_write_read drivers/android/binder.c:4854 [inline] [<00000000e0f64ae0>] binder_ioctl+0xecd/0x1720 drivers/android/binder.c:5030 [<00000000278be3fb>] vfs_ioctl fs/ioctl.c:43 [inline] [<00000000278be3fb>] file_ioctl fs/ioctl.c:493 [inline] [<00000000278be3fb>] do_vfs_ioctl+0xb87/0x11d0 fs/ioctl.c:677 [<00000000366f4170>] SYSC_ioctl fs/ioctl.c:694 [inline] [<00000000366f4170>] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:685 [<000000008fd66d6d>] do_syscall_64+0x1ad/0x5c0 arch/x86/entry/common.c:288 [<00000000abbd18e3>] 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 [<00000000bbd4a83f>] binder_alloc_do_buffer_copy+0xcb/0x500 drivers/android/binder_alloc.c:1108 RSP ---[ end trace d015a2ef2df499e6 ]---