R10: 0000000004000812 R11: 0000000000000246 R12: 0000000000000015 R13: 00000000004c0565 R14: 00000000004cffb0 R15: 0000000000000005 ion_mmap: failure mapping buffer to userspace kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN CPU: 0 PID: 12511 Comm: syz-executor4 Not tainted 4.18.0-rc4-next-20180711+ #4 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:_vm_normal_page+0x1e5/0x330 mm/memory.c:828 Code: 00 0f 85 3a 01 00 00 48 8b 85 70 ff ff ff 48 ba 00 00 00 00 00 fc ff df 48 8b 80 90 00 00 00 48 8d 78 70 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 17 01 00 00 48 8b 40 70 48 85 c0 48 89 85 60 ff RSP: 0018:ffff880183327050 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 0000000000110c00 RCX: 000000000000000e RDX: dffffc0000000000 RSI: ffffffff81abf579 RDI: 0000000000000070 RBP: ffff8801833270f0 R08: ffff8801929ec200 R09: ffffed003770c5c3 R10: ffffed003770c5c3 R11: ffff8801bb862e1b R12: 1ffff10030664e0d R13: ffff8801833270c8 R14: 0000000110c00320 R15: 0000000000000200 FS: 00007fd289398700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000725bf4 CR3: 00000001c4df2000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: zap_pte_range mm/memory.c:1312 [inline] zap_pmd_range mm/memory.c:1443 [inline] zap_pud_range mm/memory.c:1472 [inline] zap_p4d_range mm/memory.c:1493 [inline] unmap_page_range+0xa6f/0x2220 mm/memory.c:1514 unmap_single_vma+0x1a0/0x310 mm/memory.c:1559 unmap_vmas+0x120/0x1f0 mm/memory.c:1589 unmap_region+0x353/0x570 mm/mmap.c:2583 mmap_region+0x18cc/0x1da0 mm/mmap.c:1840 do_mmap+0xa10/0x1220 mm/mmap.c:1540 do_mmap_pgoff include/linux/mm.h:2290 [inline] vm_mmap_pgoff+0x213/0x2c0 mm/util.c:357 ksys_mmap_pgoff+0x4da/0x660 mm/mmap.c:1590 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:91 [inline] __x64_sys_mmap+0xe9/0x1b0 arch/x86/kernel/sys_x86_64.c:91 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455e29 Code: 1d ba fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd289397c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007fd2893986d4 RCX: 0000000000455e29 RDX: 0000000000000000 RSI: 0000000000003060 RDI: 0000000020ffd000 RBP: 000000000072bea0 R08: 0000000000000014 R09: 0000000000000000 R10: 0000000004000812 R11: 0000000000000246 R12: 0000000000000015 R13: 00000000004c0565 R14: 00000000004cffb0 R15: 0000000000000005 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace 76d1c461cfe734bc ]--- RIP: 0010:_vm_normal_page+0x1e5/0x330 mm/memory.c:828 Code: 00 0f 85 3a 01 00 00 48 8b 85 70 ff ff ff 48 ba 00 00 00 00 00 fc ff df 48 8b 80 90 00 00 00 48 8d 78 70 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 17 01 00 00 48 8b 40 70 48 85 c0 48 89 85 60 ff RSP: 0018:ffff880183327050 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 0000000000110c00 RCX: 000000000000000e RDX: dffffc0000000000 RSI: ffffffff81abf579 RDI: 0000000000000070 RBP: ffff8801833270f0 R08: ffff8801929ec200 R09: ffffed003770c5c3 R10: ffffed003770c5c3 R11: ffff8801bb862e1b R12: 1ffff10030664e0d R13: ffff8801833270c8 R14: 0000000110c00320 R15: 0000000000000200 FS: 00007fd289398700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000725bf4 CR3: 00000001c4df2000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400