binder: 5667:5673 transaction failed 29189/-3, size 24-8 line 3135 binder: 5667:5673 DecRefs 0 refcount change on invalid ref 1 ret -22 binder: 5667:5673 BC_ACQUIRE_DONE u0000000000000000 node 679 cookie mismatch 0000000000000004 != 0000000000000000 binder: undelivered TRANSACTION_ERROR: 29189 ------------[ cut here ]------------ kernel BUG at mm/usercopy.c:72! invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 5639 Comm: syz-executor5 Not tainted 4.14.67+ #1 task: ffff8801c176de00 task.stack: ffff8801d1ce0000 RIP: 0010:report_usercopy mm/usercopy.c:64 [inline] RIP: 0010:__check_object_size+0x311/0x3a2 mm/usercopy.c:264 RSP: 0018:ffff8801d1ce7b58 EFLAGS: 00010282 RAX: 0000000000000063 RBX: 000000000000e15c RCX: 0000000000040000 RDX: 0000000000000000 RSI: ffffc900068c1000 RDI: ffffffffb41ce3a0 RBP: ffff8801b05bfff2 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffb26bfbe0 R13: 0000000000000001 R14: ffffffffb26bfba0 R15: ffffea0006c16e00 FS: 00007fd44212f700(0000) GS:ffff8801dba00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fde285a5330 CR3: 00000001c8908005 CR4: 00000000001606b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: check_object_size include/linux/thread_info.h:108 [inline] check_copy_size include/linux/thread_info.h:139 [inline] copy_to_user include/linux/uaccess.h:154 [inline] bpf_test_finish.isra.0+0xba/0x190 net/bpf/test_run.c:59 bpf_prog_test_run_skb+0x4d0/0x8c0 net/bpf/test_run.c:144 bpf_prog_test_run kernel/bpf/syscall.c:1330 [inline] SYSC_bpf kernel/bpf/syscall.c:1602 [inline] SyS_bpf+0x79d/0x3640 kernel/bpf/syscall.c:1547 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x457089 RSP: 002b:00007fd44212ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fd44212f6d4 RCX: 0000000000457089 RDX: 0000000000000028 RSI: 0000000020000180 RDI: 000000000000000a RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cb4e0 R14: 00000000004c3031 R15: 0000000000000000 Code: fb 6b b2 4c 0f 45 e2 e8 be d6 db ff 48 8b 04 24 49 89 d9 48 89 e9 4c 89 f2 4c 89 e6 48 c7 c7 20 fc 6b b2 49 89 c0 e8 5a 1b cd ff <0f> 0b 4c 89 ff e8 55 cf fd ff e9 09 fe ff ff 4c 89 ff e8 48 cf RIP: report_usercopy mm/usercopy.c:64 [inline] RSP: ffff8801d1ce7b58 RIP: __check_object_size+0x311/0x3a2 mm/usercopy.c:264 RSP: ffff8801d1ce7b58 ---[ end trace b34d549249cfe1af ]---