FAT-fs (loop1): error, fat_free: invalid cluster chain (i_pos 1041) FAT-fs (loop1): Filesystem has been set read-only BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 PGD 1c0b7c067 P4D 1c0b7c067 PUD 1c5f34067 PMD 0 Oops: 0010 [#1] SMP KASAN CPU: 1 PID: 1535 Comm: kswapd0 Not tainted 4.18.0-rc4-next-20180713+ #7 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010: (null) Code: Bad RIP value. RSP: 0018:ffff8801d3ec7310 EFLAGS: 00010246 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff81a1ba2d RDX: 1ffff100388a468e RSI: ffff8801d3ec7590 RDI: ffff8801c4523470 RBP: ffff8801d3ec7500 R08: ffff8801d3e30180 R09: 0000000000000000 R10: ffffed003ae49550 R11: ffff8801d724aa87 R12: ffff8801d3ec7590 R13: ffff8801c4523470 R14: ffff8801c4523498 R15: ffff8801af53a620 FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 00000001c0a98000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: shrink_slab_memcg mm/vmscan.c:598 [inline] shrink_slab+0x861/0xa60 mm/vmscan.c:671 shrink_node+0x429/0x16a0 mm/vmscan.c:2735 kswapd_shrink_node mm/vmscan.c:3457 [inline] balance_pgdat+0x7ca/0x1010 mm/vmscan.c:3567 kswapd+0x82e/0x12f0 mm/vmscan.c:3789 kthread+0x345/0x410 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:415 Modules linked in: Dumping ftrace buffer: --------------------------------- syz-exec-31450 1...2 490346572us : 0: }D syz-exec-31450 1...2 490346578us : 0: }D syz-exec-31450 1...2 490346582us : 0: }D syz-exec-31450 1...2 490346584us : 0: }D syz-exec-31450 1...2 490346586us : 0: }D syz-exec-31450 1...2 490346589us : 0: }D syz-exec-31450 1...2 490346592us : 0: }D syz-exec-31450 1...2 490346594us : 0: }D syz-exec-31450 1...2 490346596us : 0: }D syz-exec-31450 1...2 490346598us : 0: }D syz-exec-31450 1...2 490346601us : 0: }D syz-exec-31450 1...2 490346603us : 0: }D syz-exec-31450 1...2 490346605us : 0: }D syz-exec-31450 1...2 490346609us : 0: }D syz-exec-31450 1...2 490346611us : 0: }D syz-exec-31450 1...2 490346613us : 0: }D syz-exec-31450 1...2 490346615us : 0: }D syz-exec-31450 1...2 490346618us : 0: }D syz-exec-31450 1...2 490346620us : 0: }D syz-exec-31450 1...2 490346622us : 0: }D syz-exec-31450 1...2 490346624us : 0: }D syz-exec-31450 1...2 490346627us : 0: }D syz-exec-31450 1...2 490346629us : 0: }D syz-exec-31450 1...2 490346631us : 0: }D syz-exec-31450 1...2 490346633us : 0: }D syz-exec-31450 1...2 490346635us : 0: }D syz-exec-31450 1...2 490346636us : 0: }D syz-exec-31450 1...2 490346639us : 0: }D syz-exec-31450 1...2 490346641us : 0: }D syz-exec-31450 1...2 490346643us : 0: }D syz-exec-31450 1...2 490346646us : 0: }D syz-exec-31450 1...2 490346648us : 0: }D syz-exec-31450 1...2 490346650us : 0: }D syz-exec-31450 1...2 490346652us : 0: }D syz-exec-31450 1...2 490346654us : 0: }D syz-exec-31450 1...2 490346656us : 0: }D syz-exec-31450 1...2 490346659us : 0: }D syz-exec-31450 1...2 490346660us : 0: }D syz-exec-31450 1...2 490346663us : 0: }D syz-exec-31450 1...2 490346665us : 0: }D syz-exec-31450 1...2 490346668us : 0: }D syz-exec-31450 1.N.2 490346670us : 0: }D syz-exec-31450 1...2 490346725us : 0: }D syz-exec-31450 1...2 490346727us : 0: }D syz-exec-31450 1...2 490346729us : 0: }D syz-exec-31450 1...2 490346732us : 0: }D syz-exec-31450 1...2 490346735us : 0: }D syz-exec-31450 1...2 490346737us : 0: }D syz-exec-31450 1...2 490346739us : 0: }D syz-exec-31450 1...2 490346741us : 0: }D syz-exec-31450 1...2 490346744us : 0: }D syz-exec-31450 1...2 490346746us : 0: }D syz-exec-31450 1...2 490346748us : 0: }D syz-exec-31450 1...2 490346751us : 0: }D syz-exec-31450 1...2 490346754us : 0: }D syz-exec-31450 1...2 490346756us : 0: }D syz-exec-31450 1...2 490346758us : 0: }D syz-exec-31450 1...2 490346762us : 0: }D syz-exec-31450 1...2 490346764us : 0: }D syz-exec-31450 1...2 490346766us : 0: }D syz-exec-31450 1...2 490346769us : 0: }D syz-exec-31450 1...2 490346772us : 0: }D syz-exec-31450 1...2 490346774us : 0: }D syz-exec-31450 1...2 490346776us : 0: }D syz-exec-31450 1...2 490346779us : 0: }D syz-exec-31450 1...2 490346782us : 0: }D syz-exec-31450 1...2 490346784us : 0: }D syz-exec-31450 1...2 490346787us : 0: }D syz-exec-31450 1...2 490346790us : 0: }D syz-exec-31450 1...2 490346792us : 0: }D syz-exec-31450 1...2 490346794us : 0: }D syz-exec-31450 1...2 490346796us : 0: }D syz-exec-31450 1...2 490346799us : 0: }D syz-exec-31450 1...2 490346801us : 0: }D syz-exec-31450 1...2 490346804us : 0: }D syz-exec-31450 1...2 490346807us : 0: }D syz-exec-31450 1...2 490346810us : 0: }D syz-exec-31450 1...2 490346812us : 0: }D syz-exec-31450 1...2 490346814us : 0: }D syz-exec-31450 1...2 490346819us : 0: }D syz-exec-31450 1...2 490346821us : 0: }D syz-exec-31450 1...2 490346824us : 0: }D syz-exec-31450 1...2 490346826us : 0: }D syz-exec-31450 1...2 490346828us : 0: }D syz-exec-31450 1...2 490346830us : 0: }D syz-exec-31450 1...2 490346832us : 0: }D syz-exec-31450 1...2 490346834us : 0: }D syz-exec-31450 1...2 490346836us : 0: }D syz-exec-31450 1...2 490346839us : 0: }D syz-exec-31450 1...2 490346841us : 0: }D syz-exec-31450 1...2 490346843us : 0: }D syz-exec-31450 1...2 490346845us : 0: }D syz-exec-31450 1...2 490346846us : 0: }D syz-exec-31450 1...2 490346848us : 0: }D syz-exec-31450 1...2 490346850us : 0: }D syz-exec-31450 1...2 490346852us : 0: }D syz-exec-31450 1...2 490346853us : 0: }D syz-exec-31450 1...2 490346855us : 0: }D syz-exec-31450 1...2 490346857us : 0: }D syz-exec-31450 1...2 490346858us : 0: }D syz-exec-31450 1...2 490346860us : 0: }D syz-exec-31450 1...2 490346862us : 0: }D syz-exec-31450 1...2 490346864us : 0: }D syz-exec-31450 1...2 490346865us : 0: }D syz-exec-31450 1...2 490346867us : 0: }D syz-exec-31450 1...2 490346869us : 0: }D syz-exec-31450 1...2 490346871us : 0: }D syz-exec-31450 1...2 490346872us : 0: }D syz-exec-31450 1...2 490346874us : 0: }D syz-exec-31450 1...2 490346876us : 0: }D syz-exec-31450 1...2 490346877us : 0: }D syz-exec-31450 1...2 490346879us : 0: }D syz-exec-31450 1...2 490346881us : 0: }D syz-exec-31450 1...2 490346883us : 0: }D syz-exec-31450 1...2 490346885us : 0: }D syz-exec-31450 1...2 490346887us : 0: }D syz-exec-31450 1...2 490346889us : 0: }D syz-exec-31450 1...2 490346891us : 0: }D syz-exec-31450 1...2 490346893us : 0: }D syz-exec-31450 1...2 490346895us : 0: }D syz-exec-31450 1...2 490346898us : 0: }D syz-exec-31450 1...2 490346901us : 0: }D syz-exec-31450 1...2 490346903us : 0: }D syz-exec-31450 1...2 490346906us : 0: }D syz-exec-31450 1...2 490346908us : 0: }D syz-exec-31450 1...2 490346911us : 0: }D syz-exec-31450 1...2 490346913us : 0: }D syz-exec-31450 1...2 490346916us : 0: }D syz-exec-31450 1...2 490346919us : 0: }D syz-exec-31450 1...2 490346921us : 0: }D syz-exec-31450 1...2 490346923us : 0: }D syz-exec-31450 1...2 490346925us : 0: }D syz-exec-31450 1...2 490346927us : 0: }D syz-exec-31450 1...2 490346929us : 0: }D syz-exec-31450 1...2 490346931us : 0: }D syz-exec-31450 1...2 490346933us : 0: }D syz-exec-31450 1...2 490346936us : 0: }D syz-exec-31450 1...2 490346938us : 0: }D syz-exec-31450 1...2 490346940us : 0: }D syz-exec-31450 1...2 490346943us : 0: }D syz-exec-31450 1...2 490346945us : 0: }D syz-exec-31450 1...2 490346947us : 0: }D syz-exec-31450 1...2 490346949us : 0: }D syz-exec-31450 1...2 490346951us : 0: }D syz-exec-31450 1...2 490346961us : 0: }D syz-exec-31450 1...2 490346964us : 0: }D syz-exec-31450 1...2 490346967us : 0: }D syz-exec-31450 1...2 490346969us : 0: }D syz-exec-31450 1...2 490346971us : 0: }D syz-exec-31450 1...2 490346974us : 0: }D syz-exec-31450 1...2 490346978us : 0: }D syz-exec-31450 1...2 490346981us : 0: }D syz-exec-31450 1...2 490346985us : 0: }D syz-exec-31450 1...2 490346987us : 0: }D syz-exec-31450 1...2 490346990us : 0: }D syz-exec-31450 1...2 490346992us : 0: }D syz-exec-31450 1...2 490346994us : 0: }D syz-exec-31450 1...2 490346997us : 0: }D syz-exec-31450 1...2 490346999us : 0: }D syz-exec-31450 1...2 490347000us : 0: }D syz-exec-31450 1...2 490347001us : 0: }D syz-exec-31450 1...2 490347003us : 0: }D syz-exec-31450 1...2 490347004us : 0: }D syz-exec-31450 1...2 490347005us : 0: }D syz-exec-31450 1...2 490347007us : 0: }D syz-exec-31450 1...2 490347009us : 0: }D syz-exec-31450 1...2 490347010us : 0: }D syz-exec-31450 1...2 490347011us : 0: }D syz-exec-31450 1...2 490347013us : 0: }D syz-exec-31450 1...2 490347016us : 0: }D syz-exec-31450 1...2 490347017us : 0: }D syz-exec-31450 1...2 490347019us : 0: }D syz-exec-31450 1...2 490347021us : 0: }D syz-exec-31450 1...2 490347022us : 0: }D syz-exec-31450 1...2 490347023us : 0: }D syz-exec-31450 1...2 490347025us : 0: }D syz-exec-31450 1...2 490347027us : 0: }D syz-exec-31450 1...2 490347028us : 0: }D syz-exec-31450 1...2 490347029us : 0: }D syz-exec-31450 1...2 490347031us : 0: }D syz-exec-31450 1...2 490347032us : 0: }D syz-exec-31450 1...2 490347033us : 0: }D syz-exec-31450 1...2 490347034us : 0: }D syz-exec-31450 1...2 490347037us : 0: }D syz-exec-31450 1...2 490347038us : 0: }D syz-exec-31450 1...2 490347039us : 0: }D syz-exec-31450 1...2 490347041us : 0: }D syz-exec-31450 1...2 490347043us : 0: }D syz-exec-31450 1...2 490347044us : 0: }D syz-exec-31450 1...2 490347045us : 0: }D syz-exec-31450 1...2 490347047us : 0: }D syz-exec-31450 1...2 490347048us : 0: }D syz-exec-31450 1...2 490347050us : 0: }D syz-exec-31450 1...2 490347051us : 0: }D syz-exec-31450 1...2 490347053us : 0: }D syz-exec-31450 1...2 490347054us : 0: }D syz-exec-31450 1...2 490347055us : 0: }D syz-exec-31450 1...2 490347057us : 0: }D syz-exec-31450 1...2 490347059us : 0: }D syz-exec-31450 1...2 490347060us : 0: }D syz-exec-31450 1...2 490347061us : 0: }D syz-exec-31450 1...2 490347063us : 0: }D syz-exec-31450 1...2 490347065us : 0: }D syz-exec-31450 1...2 490347066us : 0: }D syz-exec-31450 1...2 490347067us : 0: }D syz-exec-31450 1...2 490347069us : 0: }D syz-exec-31450 1...2 490347071us : 0: }D syz-exec-31450 1...2 490347073us : 0: }D syz-exec-31450 1...2 490347075us : 0: }D syz-exec-31450 1...2 490347077us : 0: }D syz-exec-31450 1...2 490347079us : 0: }D syz-exec-31450 1...2 490347081us : 0: }D syz-exec-31450 1...2 490347083us : 0: }D syz-exec-31450 1...2 490347085us : 0: }D syz-exec-31450 1...2 490347088us : 0: }D syz-exec-31450 1...2 490347090us : 0: }D syz-exec-31450 1...2 490347092us : 0: }D syz-exec-31450 1...2 490347094us : 0: }D syz-exec-31450 1...2 490347096us : 0: }D syz-exec-31450 1...2 490347098us : 0: }D syz-exec-31450 1...2 490347101us : 0: }D syz-exec-31450 1...2 490347103us : 0: }D syz-exec-31450 1...2 490347105us : 0: }D syz-exec-31450 1...2 490347108us : 0: }D syz-exec-31450 1...2 490347111us : 0: }D syz-exec-31450 1...2 490347113us : 0: }D syz-exec-31450 1...2 490347115us : 0: }D syz-exec-31450 1...2 490347118us : 0: }D syz-exec-31450 1...2 490347120us : 0: }D syz-exec-31450 1...2 490347123us : 0: }D syz-exec-31450 1...2 490347125us : 0: }D syz-exec-31450 1...2 490347127us : 0: }D syz-exec-31450 1...2 490347129us : 0: }D syz-exec-31450 1...2 490347132us : 0: }D syz-exec-31450 1...2 490347134us : 0: }D syz-exec-31450 1...2 490347136us : 0: }D syz-exec-31450 1...2 490347138us : 0: }D syz-exec-31450 1...2 490347140us : 0: }D syz-exec-31450 1...2 490347143us : 0: }D syz-exec-31450 1...2 490347145us : 0: }D syz-exec-31450 1...2 490347146us : 0: }D syz-exec-31450 1...2 490347149us : 0: }D syz-exec-31450 1...2 490347151us : 0: }D syz-exec-31450 1...2 490347154us : 0: }D syz-exec-31450 1...2 490347156us : 0: }D syz-exec-31450 1...2 490347158us : 0: }D syz-exec-31450 1...2 490347160us : 0: }D syz-exec-31450 1...2 490347163us : 0: }D syz-exec-31450 1...2 490347165us : 0: }D syz-exec-31450 1...2 490347168us : 0: }D syz-exec-31450 1...2 490347170us : 0: }D syz-exec-31450 1...2 490347173us : 0: }D syz-exec-31450 1...2 490347175us : 0: }D syz-exec-31450 1...2 490347177us : 0: }D syz-exec-31450 1...2 490347179us : 0: }D syz-exec-31450 1...2 490347182us : 0: }D syz-exec-31450 1...2 490347211us : 0: }D syz-exec-31450 1...2 490347214us : 0: }D syz-exec-31450 1...2 490347216us : 0: }D syz-exec-31450 1...2 490347219us : 0: }D syz-exec-31450 1...2 490347221us : 0: }D syz-exec-31450 1...2 490347225us : 0: }D syz-exec-31450 1...2 490347227us : 0: }D syz-exec-31450 1...2 490347230us : 0: }D syz-exec-31450 1...2 490347232us : 0: }D syz-exec-31450 1...2 490347235us : 0: }D syz-exec-31450 1...2 490347238us : 0: }D syz-exec-31450 1...2 490347240us : 0: }D syz-exec-31450 1...2 490347243us : 0: }D syz-exec-31450 1...2 490347246us : 0: }D syz-exec-31450 1...2 490347248us : 0: }D syz-exec-31450 1...2 490347250us : 0: }D syz-exec-31450 1...2 490347253us : 0: }D syz-exec-31450 1...2 490347255us : 0: }D syz-exec-31450 1...2 490347258us : 0: }D syz-exec-31450 1...2 490347260us : 0: }D syz-exec-31450 1...2 490347263us : 0: }D syz-exec-31450 1...2 490347265us : 0: }D syz-exec-31450 1...2 490347268us : 0: }D syz-exec-31450 1...2 490347271us : 0: }D syz-exec-31450 1...2 490347274us : 0: }D syz-exec-31450 1...2 490347276us : 0: }D syz-exec-31450 1...2 490347278us : 0: }D syz-exec-31450 1...2 490347281us : 0: }D syz-exec-31450 1...2 490347283us : 0: }D syz-exec-31450 1...2 490347285us : 0: }D syz-exec-31450 1...2 490347288us : 0: }D syz-exec-31450 1...2 490347290us : 0: }D syz-exec-31450 1...2 490347293us : 0: }D --------------------------------- CR2: 0000000000000000 ---[ end trace 28aa9e09446184f6 ]--- BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 RIP: 0010: (null) PGD 194ef3067 Code: P4D 194ef3067 Bad RIP value. PUD 1c8856067 RSP: 0018:ffff8801d3ec7310 EFLAGS: 00010246 PMD 0 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffffff81a1ba2d Oops: 0010 [#2] SMP KASAN RDX: 1ffff100388a468e RSI: ffff8801d3ec7590 RDI: ffff8801c4523470 CPU: 0 PID: 8659 Comm: syz-executor1 Tainted: G D 4.18.0-rc4-next-20180713+ #7 RBP: ffff8801d3ec7500 R08: ffff8801d3e30180 R09: 0000000000000000 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 R10: ffffed003ae49550 R11: ffff8801d724aa87 R12: ffff8801d3ec7590 RIP: 0010: (null) R13: ffff8801c4523470 R14: ffff8801c4523498 R15: ffff8801af53a620 Code: Bad RIP value. FS: 0000000000000000(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 RSP: 0018:ffff8801563de9c8 EFLAGS: 00010246 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffffffffffffd6 CR3: 00000001c0a98000 CR4: 00000000001406e0 RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffffc90003216000 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 RDX: 1ffff1003a500dae RSI: ffff8801563dec48 RDI: ffff8801d2806d70 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400