------------[ cut here ]------------ WARNING: CPU: 1 PID: 2527 at mm/gup.c:385 check_vma_flags mm/gup.c:385 [inline]() WARNING: CPU: 1 PID: 2527 at mm/gup.c:385 __get_user_pages+0xa04/0xea0 mm/gup.c:499() Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 2527 Comm: syz-executor0 Not tainted 4.4.154+ #33 0000000000000000 1ee21349527f6219 ffff8800b49af830 ffffffff81a54fed ffffffff82835440 ffff8801d1e15f00 ffffffff82892620 0000000000000009 0000000000000181 ffff8800b49af8f0 ffffffff8138a884 0000000041b58ab3 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x124 lib/dump_stack.c:51 [] panic+0x19e/0x359 kernel/panic.c:112 [] warn_slowpath_common.cold.6+0x20/0x20 kernel/panic.c:455 [] warn_slowpath_null+0x29/0x30 kernel/panic.c:492 [] check_vma_flags mm/gup.c:385 [inline] [] __get_user_pages+0xa04/0xea0 mm/gup.c:499 [] __get_user_pages_locked mm/gup.c:656 [inline] [] get_user_pages+0x8e/0xa0 mm/gup.c:864 [] __access_remote_vm+0x1e4/0x3c0 mm/memory.c:3735 [] access_process_vm+0x58/0x80 mm/memory.c:3813 [] compat_ptrace_request+0x20a/0x430 kernel/ptrace.c:1171 [] ia32_arch_ptrace arch/x86/kernel/ptrace.c:1184 [inline] [] compat_arch_ptrace+0x443/0x620 arch/x86/kernel/ptrace.c:1288 [] C_SYSC_ptrace kernel/ptrace.c:1260 [inline] [] compat_SyS_ptrace+0x114/0x140 kernel/ptrace.c:1229 [] do_syscall_32_irqs_on arch/x86/entry/common.c:393 [inline] [] do_fast_syscall_32+0x31e/0x8b0 arch/x86/entry/common.c:460 [] sysenter_flags_fixed+0xd/0x1a Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..