------------[ cut here ]------------ WARNING: CPU: 0 PID: 3788 at mm/gup.c:388 check_vma_flags mm/gup.c:388 [inline]() WARNING: CPU: 0 PID: 3788 at mm/gup.c:388 __get_user_pages+0xae7/0xfd0 mm/gup.c:502() Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 3788 Comm: syz-executor.0 Not tainted 4.4.174+ #4 0000000000000000 39417a25e9915329 ffff8800b7c1f960 ffffffff81aad1a1 0000000000000000 ffffffff82835ee0 ffffffff82892ea0 0000000000000184 ffffffff8142cb27 ffff8800b7c1fa40 ffffffff813a48c2 0000000041b58ab3 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x120 lib/dump_stack.c:51 [] panic+0x1b9/0x37b kernel/panic.c:112 [] warn_slowpath_common kernel/panic.c:455 [inline] [] warn_slowpath_common.cold+0x20/0x20 kernel/panic.c:435 [] warn_slowpath_null+0x2a/0x30 kernel/panic.c:492 [] check_vma_flags mm/gup.c:388 [inline] [] __get_user_pages+0xae7/0xfd0 mm/gup.c:502 [] __get_user_pages_locked mm/gup.c:654 [inline] [] get_user_pages+0x6d/0x90 mm/gup.c:864 [] __access_remote_vm+0x1e3/0x3c0 mm/memory.c:3727 [] access_process_vm+0x66/0x90 mm/memory.c:3809 [] generic_ptrace_pokedata kernel/ptrace.c:1145 [inline] [] ptrace_request+0x5b5/0xac0 kernel/ptrace.c:861 [] arch_ptrace+0x3f/0x970 arch/x86/kernel/ptrace.c:923 [] SYSC_ptrace kernel/ptrace.c:1118 [inline] [] SyS_ptrace+0xb6/0x170 kernel/ptrace.c:1083 [] entry_SYSCALL_64_fastpath+0x1e/0x9a Kernel Offset: disabled Rebooting in 86400 seconds..