WARNING: CPU: 1 PID: 9281 at drivers/staging/android/ion/ion-ioctl.c:73 ion_ioctl+0x2db/0x380 drivers/staging/android/ion/ion-ioctl.c:73 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 9281 Comm: syz-executor2 Not tainted 4.15.0-rc6+ #158 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 panic+0x1e4/0x41c kernel/panic.c:183 __warn+0x1dc/0x200 kernel/panic.c:547 report_bug+0x211/0x2d0 lib/bug.c:184 fixup_bug.part.11+0x37/0x80 arch/x86/kernel/traps.c:178 fixup_bug arch/x86/kernel/traps.c:247 [inline] do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 invalid_op+0x22/0x40 arch/x86/entry/entry_64.S:1079 RIP: 0010:ion_ioctl+0x2db/0x380 drivers/staging/android/ion/ion-ioctl.c:73 RSP: 0018:ffff8801c32f7ca8 EFLAGS: 00010212 RAX: 0000000000010000 RBX: 0000000000000018 RCX: ffffffff8410f42b RDX: 0000000000000221 RSI: ffffc900022c3000 RDI: ffff8801c32f7cdc RBP: ffff8801c32f7d40 R08: 7b68fd99adcff8d5 R09: ffffed003865ef9e R10: 0000000000000003 R11: ffffed003865ef9d R12: 1ffff1003865ef97 R13: 00000000c0184908 R14: ffff8801c32f7d18 R15: dffffc0000000000 C_SYSC_ioctl fs/compat_ioctl.c:1473 [inline] compat_SyS_ioctl+0x151/0x2a30 fs/compat_ioctl.c:1419 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline] do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389 entry_SYSENTER_compat+0x54/0x63 arch/x86/entry/entry_64_compat.S:129 RIP: 0023:0xf7f90c79 RSP: 002b:00000000f778c08c EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000013 RCX: 00000000c0184908 RDX: 0000000020a0cf46 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..