Warning: Permanently added '10.128.1.20' (ECDSA) to the list of known hosts. [ 36.203495] audit: type=1400 audit(1588517558.864:8): avc: denied { execmem } for pid=6362 comm="syz-executor781" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 36.476381] IPVS: ftp: loaded support on port[0] = 21 [ 37.456392] IPVS: ftp: loaded support on port[0] = 21 executing program [ 38.283063] audit: type=1800 audit(1588517560.945:9): pid=6418 uid=0 auid=0 ses=5 subj=system_u:system_r:kernel_t:s0 op="collect_data" cause="failed(directio)" comm="syz-executor781" name="file0" dev="sda1" ino=15704 res=0 [ 38.311255] MINIX-fs: mounting unchecked file system, running fsck is recommended [ 38.328365] Process accounting resumed executing program [ 38.339062] Process accounting resumed executing program executing program [ 38.364371] Process accounting resumed [ 38.371000] Process accounting resumed [ 38.393215] Process accounting resumed [ 38.400430] Process accounting resumed executing program [ 38.415312] Process accounting resumed [ 38.421686] Process accounting resumed [ 38.445324] Process accounting resumed [ 38.454094] Process accounting resumed executing program [ 38.460824] IPVS: ftp: loaded support on port[0] = 21 executing program executing program [ 38.498401] Process accounting resumed [ 38.506059] Process accounting resumed [ 38.534043] Process accounting resumed [ 38.540659] Process accounting resumed executing program executing program [ 38.573493] Process accounting resumed [ 38.582259] Process accounting resumed [ 38.598547] Process accounting resumed [ 38.605910] Process accounting resumed executing program executing program [ 38.637390] Process accounting resumed [ 38.643743] Process accounting resumed [ 38.669228] Process accounting resumed [ 38.682780] Process accounting resumed executing program executing program [ 38.716637] Process accounting resumed [ 38.723347] Process accounting resumed [ 38.746645] Process accounting resumed [ 38.752225] Process accounting resumed executing program executing program [ 38.784727] Process accounting resumed [ 38.791205] Process accounting resumed [ 38.822612] Process accounting resumed [ 38.828150] Process accounting resumed executing program [ 38.849032] Process accounting resumed [ 38.855369] Process accounting resumed executing program executing program [ 38.890919] Process accounting resumed [ 38.896238] Process accounting resumed [ 38.916723] Process accounting resumed [ 38.923020] Process accounting resumed executing program executing program [ 38.956514] Process accounting resumed [ 38.962067] Process accounting resumed [ 38.985420] Process accounting resumed [ 38.998829] Process accounting resumed executing program executing program [ 39.031590] Process accounting resumed [ 39.041907] Process accounting resumed executing program executing program [ 39.076667] MINIX-fs: mounting unchecked file system, running fsck is recommended [ 39.087033] Process accounting resumed [ 39.096847] Process accounting resumed [ 39.111736] Process accounting resumed [ 39.118334] Process accounting resumed executing program executing program executing program [ 39.139559] Process accounting resumed [ 39.144082] Process accounting resumed [ 39.160612] Process accounting resumed [ 39.168428] Process accounting resumed [ 39.172931] Process accounting resumed [ 39.182670] Process accounting resumed executing program executing program [ 39.212121] Process accounting resumed [ 39.219571] Process accounting resumed [ 39.230699] Process accounting resumed [ 39.238381] Process accounting resumed executing program executing program [ 39.257986] IPVS: ftp: loaded support on port[0] = 21 [ 39.268705] Process accounting resumed [ 39.275377] Process accounting resumed [ 39.286695] Process accounting resumed [ 39.292908] Process accounting resumed [ 39.308474] Process accounting resumed executing program executing program [ 39.316611] Process accounting resumed [ 39.332994] Process accounting resumed [ 39.339643] Process accounting resumed executing program executing program [ 39.364731] Process accounting resumed [ 39.369028] Process accounting resumed [ 39.373791] Process accounting resumed [ 39.388751] Process accounting resumed executing program executing program [ 39.418214] Process accounting resumed [ 39.425851] Process accounting resumed [ 39.440602] Process accounting resumed [ 39.448188] Process accounting resumed executing program executing program [ 39.470174] Process accounting resumed [ 39.476218] Process accounting resumed [ 39.481901] Process accounting resumed [ 39.488963] Process accounting resumed executing program executing program [ 39.521768] Process accounting resumed [ 39.534179] Process accounting resumed [ 39.542036] Process accounting resumed [ 39.542642] Process accounting resumed executing program executing program [ 39.579164] Process accounting resumed [ 39.586488] Process accounting resumed [ 39.591236] Process accounting resumed [ 39.598425] Process accounting resumed executing program executing program [ 39.626809] Process accounting resumed [ 39.631529] Process accounting resumed [ 39.638810] Process accounting resumed [ 39.649023] Process accounting resumed executing program executing program executing program [ 39.677820] Process accounting resumed [ 39.683296] Process accounting resumed [ 39.689455] Process accounting resumed [ 39.696702] Process accounting resumed [ 39.714219] Process accounting resumed [ 39.720812] Process accounting resumed executing program executing program [ 39.739626] Process accounting resumed [ 39.744378] Process accounting resumed [ 39.756809] Process accounting resumed [ 39.767415] Process accounting resumed [ 39.781368] Process accounting resumed [ 39.790412] Process accounting resumed executing program executing program executing program [ 39.812471] Process accounting resumed [ 39.819961] Process accounting resumed executing program [ 39.859797] Process accounting resumed [ 39.865060] Process accounting resumed [ 39.880869] Process accounting resumed [ 39.888853] MINIX-fs: mounting unchecked file system, running fsck is recommended [ 39.899152] Process accounting resumed executing program executing program executing program [ 39.914301] Process accounting resumed [ 39.921318] Process accounting resumed [ 39.937929] Process accounting resumed [ 39.944817] Process accounting resumed [ 39.947392] Process accounting resumed [ 39.951027] Process accounting resumed [ 39.958688] Process accounting resumed executing program executing program executing program executing program [ 39.967461] Process accounting resumed [ 39.974203] Process accounting resumed [ 39.980386] Process accounting resumed [ 39.988766] Process accounting resumed [ 39.996473] Process accounting resumed [ 40.008488] Process accounting resumed executing program executing program [ 40.015859] Process accounting resumed [ 40.027991] Process accounting resumed [ 40.034999] Process accounting resumed [ 40.037594] Process accounting resumed [ 40.054852] Process accounting resumed [ 40.056844] Process accounting resumed executing program executing program executing program [ 40.067268] Process accounting resumed [ 40.073306] Process accounting resumed [ 40.085649] Process accounting resumed [ 40.085912] IPVS: ftp: loaded support on port[0] = 21 [ 40.110603] Process accounting resumed executing program executing program [ 40.116829] Process accounting resumed [ 40.121621] Process accounting resumed [ 40.132971] Process accounting resumed [ 40.144445] Process accounting resumed [ 40.158350] Process accounting resumed executing program executing program executing program [ 40.170412] Process accounting resumed [ 40.177804] Process accounting resumed [ 40.182291] Process accounting resumed [ 40.193473] Process accounting resumed [ 40.212957] Process accounting resumed executing program executing program executing program [ 40.218918] Process accounting resumed [ 40.221134] Process accounting resumed [ 40.227048] Process accounting resumed [ 40.233949] Process accounting resumed [ 40.242918] Process accounting resumed [ 40.261036] Process accounting resumed executing program executing program executing program [ 40.267657] Process accounting resumed [ 40.274201] Process accounting resumed [ 40.282756] Process accounting resumed [ 40.287687] Process accounting resumed [ 40.303445] Process accounting resumed [ 40.309163] Process accounting resumed executing program executing program [ 40.318719] Process accounting resumed [ 40.327550] Process accounting resumed [ 40.342753] Process accounting resumed [ 40.354011] Process accounting resumed [ 40.358619] Process accounting resumed [ 40.364739] Process accounting resumed executing program executing program executing program [ 40.366340] Process accounting resumed [ 40.388246] Process accounting resumed [ 40.395691] Process accounting resumed [ 40.407617] Process accounting resumed [ 40.412454] Process accounting resumed executing program executing program executing program [ 40.419851] Process accounting resumed [ 40.429566] Process accounting resumed [ 40.440930] Process accounting resumed [ 40.446861] Process accounting resumed [ 40.463569] Process accounting resumed executing program executing program executing program executing program [ 40.469758] Process accounting resumed [ 40.472053] Process accounting resumed [ 40.477383] Process accounting resumed [ 40.488193] Process accounting resumed [ 40.494785] Process accounting resumed [ 40.507395] Process accounting resumed [ 40.514341] Process accounting resumed executing program executing program [ 40.531321] Process accounting resumed [ 40.537791] Process accounting resumed [ 40.542277] Process accounting resumed [ 40.549599] Process accounting resumed [ 40.563136] Process accounting resumed [ 40.570176] Process accounting resumed executing program executing program executing program [ 40.586079] Process accounting resumed [ 40.592963] Process accounting resumed [ 40.606684] Process accounting resumed [ 40.610908] Process accounting resumed [ 40.612975] Process accounting resumed [ 40.621690] Process accounting resumed executing program executing program [ 40.636026] Process accounting resumed [ 40.642847] Process accounting resumed [ 40.660347] Process accounting resumed [ 40.665702] Process accounting resumed [ 40.672207] Process accounting resumed [ 40.678978] Process accounting resumed executing program executing program executing program [ 40.685300] Process accounting resumed [ 40.699053] Process accounting resumed executing program executing program [ 40.730170] Process accounting resumed [ 40.738132] Process accounting resumed [ 40.747076] Process accounting resumed [ 40.754865] Process accounting resumed [ 40.755227] MINIX-fs: mounting unchecked file system, running fsck is recommended executing program executing program [ 40.779441] Process accounting resumed [ 40.792370] Process accounting resumed [ 40.807143] Process accounting resumed [ 40.815594] Process accounting resumed [ 40.819942] Process accounting resumed [ 40.823403] Process accounting resumed executing program executing program executing program executing program [ 40.828057] Process accounting resumed [ 40.829472] Process accounting resumed [ 40.835590] Process accounting resumed [ 40.842399] Process accounting resumed [ 40.859278] Process accounting resumed [ 40.867668] Process accounting resumed [ 40.869553] Process accounting resumed executing program executing program executing program executing program [ 40.883313] Process accounting resumed [ 40.884671] Process accounting resumed [ 40.895529] Process accounting resumed [ 40.903434] Process accounting resumed [ 40.914624] Process accounting resumed [ 40.928540] Process accounting resumed executing program executing program [ 40.937299] Process accounting resumed [ 40.939916] Process accounting resumed [ 40.945404] Process accounting resumed [ 40.952636] Process accounting resumed [ 40.963819] Process accounting resumed [ 40.970677] Process accounting resumed [ 40.977245] Process accounting resumed [ 40.982539] Process accounting resumed executing program executing program executing program executing program [ 40.989353] Process accounting resumed [ 40.995671] Process accounting resumed [ 41.002422] Process accounting resumed [ 41.006344] Process accounting resumed [ 41.008519] Process accounting resumed [ 41.026883] Process accounting resumed executing program executing program executing program [ 41.039582] Process accounting resumed [ 41.046648] Process accounting resumed [ 41.052852] Process accounting resumed [ 41.058120] Process accounting resumed [ 41.065413] Process accounting resumed [ 41.071058] Process accounting resumed [ 41.075125] IPVS: ftp: loaded support on port[0] = 21 [ 41.085062] Process accounting resumed executing program executing program executing program executing program [ 41.095655] Process accounting resumed [ 41.105293] Process accounting resumed [ 41.121931] Process accounting resumed [ 41.128466] Process accounting resumed [ 41.138407] Process accounting resumed executing program executing program [ 41.146748] Process accounting resumed [ 41.151457] Process accounting resumed [ 41.161811] Process accounting resumed [ 41.168026] Process accounting resumed [ 41.173370] Process accounting resumed [ 41.188419] Process accounting resumed executing program executing program executing program executing program [ 41.197413] Process accounting resumed [ 41.209124] Process accounting resumed [ 41.215009] Process accounting resumed [ 41.222364] Process accounting resumed [ 41.222717] Process accounting resumed [ 41.241346] Process accounting resumed executing program executing program executing program [ 41.248133] Process accounting resumed [ 41.252366] Process accounting resumed [ 41.268428] Process accounting resumed [ 41.276478] Process accounting resumed [ 41.282826] Process accounting resumed executing program executing program [ 41.304460] Process accounting resumed [ 41.308911] Process accounting resumed [ 41.318340] Process accounting resumed [ 41.322873] Process accounting resumed [ 41.337792] Process accounting resumed [ 41.347086] Process accounting resumed executing program executing program [ 41.351265] Process accounting resumed [ 41.361977] Process accounting resumed [ 41.376395] Process accounting resumed [ 41.383150] Process accounting resumed [ 41.390676] Process accounting resumed [ 41.399777] Process accounting resumed executing program executing program executing program [ 41.404657] Process accounting resumed [ 41.415011] Process accounting resumed [ 41.425404] Process accounting resumed [ 41.432088] Process accounting resumed [ 41.444552] Process accounting resumed [ 41.451495] Process accounting resumed executing program executing program executing program executing program [ 41.457468] Process accounting resumed [ 41.462817] Process accounting resumed [ 41.463807] Process accounting resumed [ 41.470982] Process accounting resumed [ 41.490545] Process accounting resumed [ 41.498379] Process accounting resumed executing program executing program executing program executing program [ 41.508051] Process accounting resumed [ 41.512573] Process accounting resumed [ 41.521582] Process accounting resumed [ 41.527844] Process accounting resumed [ 41.538206] Process accounting resumed [ 41.545716] Process accounting resumed executing program [ 41.556699] Process accounting resumed [ 41.564024] Process accounting resumed [ 41.577819] Process accounting resumed [ 41.582627] Process accounting resumed [ 41.590039] Process accounting resumed [ 41.597060] Process accounting resumed [ 41.598629] Process accounting resumed executing program executing program executing program executing program executing program executing program [ 41.601346] Process accounting resumed [ 41.608381] Process accounting resumed [ 41.612744] Process accounting resumed [ 41.639393] Process accounting resumed [ 41.646763] Process accounting resumed executing program [ 41.668991] Process accounting resumed [ 41.674669] Process accounting resumed [ 41.680341] Process accounting resumed [ 41.686778] Process accounting resumed [ 41.698356] Process accounting resumed [ 41.702580] Process accounting resumed [ 41.707833] MINIX-fs: mounting unchecked file system, running fsck is recommended executing program executing program executing program executing program [ 41.724171] Process accounting resumed [ 41.729051] Process accounting resumed [ 41.735546] Process accounting resumed [ 41.739351] Process accounting resumed [ 41.740531] Process accounting resumed [ 41.749012] Process accounting resumed executing program executing program [ 41.780582] Process accounting resumed [ 41.786265] Process accounting resumed [ 41.791113] Process accounting resumed [ 41.798059] Process accounting resumed [ 41.800512] Process accounting resumed [ 41.809508] Process accounting resumed [ 41.812325] Process accounting resumed executing program executing program executing program [ 41.831982] Process accounting resumed [ 41.849790] Process accounting resumed [ 41.856606] Process accounting resumed [ 41.857542] Process accounting resumed [ 41.866062] Process accounting resumed [ 41.866636] Process accounting resumed [ 41.872569] Process accounting resumed executing program executing program executing program executing program [ 41.886630] Process accounting resumed [ 41.894783] Process accounting resumed [ 41.902494] Process accounting resumed [ 41.910857] Process accounting resumed [ 41.920343] Process accounting resumed [ 41.926576] Process accounting resumed executing program executing program executing program executing program executing program [ 41.937511] Process accounting resumed [ 41.943743] Process accounting resumed [ 41.944470] Process accounting resumed [ 41.950060] Process accounting resumed [ 41.957027] Process accounting resumed [ 41.963538] Process accounting resumed [ 41.980197] Process accounting resumed executing program executing program [ 41.985015] Process accounting resumed [ 41.989557] Process accounting resumed [ 41.998024] Process accounting resumed [ 42.004168] Process accounting resumed [ 42.008445] Process accounting resumed [ 42.013573] Process accounting resumed [ 42.026473] Process accounting resumed [ 42.027442] Process accounting resumed executing program executing program executing program executing program executing program [ 42.035906] Process accounting resumed [ 42.050721] Process accounting resumed [ 42.056607] Process accounting resumed [ 42.064135] Process accounting resumed [ 42.069041] Process accounting resumed [ 42.071172] Process accounting resumed [ 42.082516] Process accounting resumed executing program executing program executing program [ 42.085514] Process accounting resumed [ 42.091238] Process accounting resumed [ 42.098296] Process accounting resumed [ 42.102582] Process accounting resumed [ 42.114457] Process accounting resumed [ 42.125354] Process accounting resumed executing program executing program executing program executing program [ 42.138354] Process accounting resumed [ 42.143951] Process accounting resumed [ 42.146977] Process accounting resumed [ 42.156271] Process accounting resumed [ 42.159562] Process accounting resumed [ 42.171405] Process accounting resumed [ 42.176623] Process accounting resumed [ 42.179365] Process accounting resumed executing program executing program executing program executing program [ 42.195499] Process accounting resumed [ 42.202322] Process accounting resumed [ 42.203446] Process accounting resumed [ 42.212755] Process accounting resumed [ 42.217394] Process accounting resumed [ 42.227459] Process accounting resumed [ 42.238956] Process accounting resumed executing program executing program executing program executing program [ 42.244547] Process accounting resumed [ 42.249045] Process accounting resumed [ 42.249759] Process accounting resumed [ 42.256137] Process accounting resumed [ 42.267988] Process accounting resumed [ 42.269905] Process accounting resumed [ 42.281040] Process accounting resumed [ 42.284214] Process accounting resumed [ 42.288389] Process accounting resumed executing program executing program executing program executing program [ 42.297201] Process accounting resumed [ 42.305972] Process accounting resumed [ 42.307882] Process accounting resumed [ 42.312355] Process accounting resumed [ 42.318582] Process accounting resumed [ 42.325226] Process accounting resumed [ 42.342480] Process accounting resumed executing program executing program executing program [ 42.349578] Process accounting resumed [ 42.349913] Process accounting resumed [ 42.366650] Process accounting resumed [ 42.368807] Process accounting resumed [ 42.374470] Process accounting resumed [ 42.386667] Process accounting resumed [ 42.390931] Process accounting resumed executing program executing program executing program [ 42.396914] Process accounting resumed [ 42.399224] Process accounting resumed [ 42.411120] Process accounting resumed [ 42.416908] Process accounting resumed [ 42.418857] Process accounting resumed [ 42.424865] Process accounting resumed [ 42.434330] Process accounting resumed [ 42.438961] Process accounting resumed [ 42.444366] Process accounting resumed executing program executing program executing program executing program [ 42.449504] Process accounting resumed [ 42.454868] Process accounting resumed [ 42.461385] Process accounting resumed [ 42.485247] Process accounting resumed [ 42.491420] Process accounting resumed [ 42.492159] Process accounting resumed executing program executing program executing program executing program executing program executing program [ 42.505291] Process accounting resumed [ 42.510101] Process accounting resumed [ 42.512127] Process accounting resumed [ 42.519368] Process accounting resumed [ 42.521495] Process accounting resumed [ 42.536772] Process accounting resumed [ 42.541497] Process accounting resumed [ 42.545042] Process accounting resumed [ 42.550636] Process accounting resumed executing program executing program [ 42.565617] Process accounting resumed [ 42.585400] Process accounting resumed [ 42.592354] Process accounting resumed [ 42.597977] Process accounting resumed [ 42.603169] Process accounting resumed [ 42.607653] Process accounting resumed executing program executing program executing program executing program [ 42.614734] Process accounting resumed [ 42.616154] Process accounting resumed [ 42.623164] Process accounting resumed [ 42.631132] Process accounting resumed [ 42.632417] Process accounting resumed [ 42.643868] Process accounting resumed [ 42.646474] Process accounting resumed [ 42.650421] Process accounting resumed executing program executing program executing program [ 42.668202] Process accounting resumed [ 42.675315] Process accounting resumed [ 42.675339] Process accounting resumed [ 42.686598] Process accounting resumed [ 42.687839] Process accounting resumed [ 42.695573] Process accounting resumed [ 42.695575] Process accounting resumed [ 42.698002] Process accounting resumed [ 42.714311] Process accounting resumed executing program executing program executing program executing program [ 42.725651] Process accounting resumed [ 42.738329] Process accounting resumed [ 42.745604] Process accounting resumed [ 42.761903] Process accounting resumed [ 42.766213] Process accounting resumed [ 42.768275] Process accounting resumed executing program executing program executing program executing program executing program [ 42.776840] Process accounting resumed [ 42.784109] Process accounting resumed [ 42.788258] Process accounting resumed [ 42.797076] Process accounting resumed [ 42.802288] Process accounting resumed [ 42.822309] Process accounting resumed executing program executing program executing program [ 42.829607] Process accounting resumed [ 42.836454] Process accounting resumed [ 42.841779] Process accounting resumed [ 42.845341] MINIX-fs: mounting unchecked file system, running fsck is recommended [ 42.850112] Process accounting resumed [ 42.853668] Process accounting resumed [ 42.855092] Process accounting resumed [ 42.867050] Process accounting resumed [ 42.870463] Process accounting resumed executing program executing program executing program [ 42.881780] Process accounting resumed [ 42.888351] Process accounting resumed [ 42.904149] Process accounting resumed [ 42.908777] Process accounting resumed [ 42.921483] Process accounting resumed [ 42.926444] Process accounting resumed executing program [ 42.938160] Process accounting resumed [ 42.942462] ================================================================== [ 42.949969] BUG: KASAN: use-after-free in get_block+0xfaa/0x10f0 [ 42.956122] Write of size 2 at addr ffff888080f0f7b8 by task syz-executor781/7387 [ 42.963739] [ 42.965370] CPU: 1 PID: 7387 Comm: syz-executor781 Not tainted 4.14.178-syzkaller #0 [ 42.973250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.982627] Call Trace: [ 42.985220] dump_stack+0x13e/0x194 [ 42.988846] ? get_block+0xfaa/0x10f0 [ 42.992661] print_address_description.cold+0x7c/0x1e2 [ 42.998125] ? get_block+0xfaa/0x10f0 [ 43.002456] kasan_report.cold+0xa9/0x2ae [ 43.006611] get_block+0xfaa/0x10f0 [ 43.010280] ? block_to_path.isra.0+0x2d0/0x2d0 [ 43.014958] ? trace_hardirqs_on+0x10/0x10 [ 43.019196] ? lock_downgrade+0x6e0/0x6e0 [ 43.023350] ? __lock_acquire+0x5f7/0x4620 [ 43.027596] minix_get_block+0xd6/0x100 [ 43.031616] __block_write_begin_int+0x337/0x1030 [ 43.036472] ? minix_rename+0x760/0x760 [ 43.040463] ? __breadahead_gfp+0xd0/0xd0 [ 43.044645] ? wait_for_stable_page+0xe3/0x270 [ 43.049253] ? minix_rename+0x760/0x760 [ 43.053232] block_write_begin+0x58/0x260 [ 43.057390] minix_write_begin+0x35/0xc0 [ 43.061457] generic_perform_write+0x1c9/0x420 [ 43.066048] ? page_endio+0x540/0x540 [ 43.069986] ? current_time+0xb0/0xb0 [ 43.073818] ? lock_acquire+0x170/0x3f0 [ 43.077805] __generic_file_write_iter+0x227/0x590 [ 43.082747] generic_file_write_iter+0x2fa/0x650 [ 43.087535] ? iov_iter_init+0xa6/0x1c0 [ 43.091525] __vfs_write+0x44e/0x630 [ 43.095243] ? save_trace+0x290/0x290 [ 43.099047] ? kernel_read+0x110/0x110 [ 43.102938] ? save_trace+0x290/0x290 [ 43.106747] ? do_acct_process+0xc41/0xf60 [ 43.110986] __kernel_write+0xf5/0x330 [ 43.114879] do_acct_process+0xb49/0xf60 [ 43.119034] ? acct_put+0x40/0x40 [ 43.122670] ? pin_kill+0xfb/0x650 [ 43.126224] acct_pin_kill+0x28/0xe0 [ 43.129945] pin_kill+0x147/0x650 [ 43.133403] ? pin_insert+0x50/0x50 [ 43.137064] ? __mutex_unlock_slowpath+0x75/0x780 [ 43.141910] ? finish_wait+0x260/0x260 [ 43.145805] SyS_acct+0x528/0x850 [ 43.149261] ? acct_pin_kill+0xe0/0xe0 [ 43.153156] do_syscall_64+0x1d5/0x640 [ 43.157052] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.162246] RIP: 0033:0x44ba09 [ 43.165435] RSP: 002b:00007fcb001b8ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a3 [ 43.173147] RAX: ffffffffffffffda RBX: 00000000006e39c8 RCX: 000000000044ba09 [ 43.180422] RDX: 000000000044ba09 RSI: edc86c9e6ad7551b RDI: 0000000020000480 [ 43.187700] RBP: 00000000006e39c0 R08: 0000000000000000 R09: 0000000000000000 [ 43.194973] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e39cc [ 43.202252] R13: 00007fffcc728b7f R14: 00007fcb001b99c0 R15: 0000000000000000 [ 43.209578] [ 43.211208] The buggy address belongs to the page: [ 43.216136] page:ffffea000203c3c0 count:0 mapcount:0 mapping: (null) index:0x1 [ 43.224289] flags: 0xfffe0000000000() [ 43.228094] raw: 00fffe0000000000 0000000000000000 0000000000000001 00000000ffffffff [ 43.235993] raw: ffffea000203f3e0 ffffea0002038020 0000000000000000 0000000000000000 [ 43.243873] page dumped because: kasan: bad access detected [ 43.244306] Process accounting resumed [ 43.249575] [ 43.249586] Memory state around the buggy address: [ 43.249594] ffff888080f0f680: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 43.249600] ffff888080f0f700: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 43.249606] >ffff888080f0f780: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 43.249610] ^ [ 43.249616] ffff888080f0f800: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 43.249621] ffff888080f0f880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 43.249625] ================================================================== [ 43.249628] Disabling lock debugging due to kernel taint [ 43.255046] Kernel panic - not syncing: panic_on_warn set ... [ 43.255046] [ 43.322341] CPU: 1 PID: 7387 Comm: syz-executor781 Tainted: G B 4.14.178-syzkaller #0 [ 43.331588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.341068] Call Trace: [ 43.343648] dump_stack+0x13e/0x194 [ 43.347285] panic+0x1f9/0x42d [ 43.350468] ? add_taint.cold+0x16/0x16 [ 43.354433] ? preempt_schedule_common+0x4a/0xc0 [ 43.359264] ? get_block+0xfaa/0x10f0 [ 43.363060] ? ___preempt_schedule+0x16/0x18 [ 43.367453] ? get_block+0xfaa/0x10f0 [ 43.371343] kasan_end_report+0x43/0x49 [ 43.375307] kasan_report.cold+0x12f/0x2ae [ 43.380391] get_block+0xfaa/0x10f0 [ 43.383999] ? block_to_path.isra.0+0x2d0/0x2d0 [ 43.388647] ? trace_hardirqs_on+0x10/0x10 [ 43.392862] ? lock_downgrade+0x6e0/0x6e0 [ 43.396990] ? __lock_acquire+0x5f7/0x4620 [ 43.401225] minix_get_block+0xd6/0x100 [ 43.405194] __block_write_begin_int+0x337/0x1030 [ 43.410019] ? minix_rename+0x760/0x760 [ 43.413973] ? __breadahead_gfp+0xd0/0xd0 [ 43.418138] ? wait_for_stable_page+0xe3/0x270 [ 43.422708] ? minix_rename+0x760/0x760 [ 43.426663] block_write_begin+0x58/0x260 [ 43.430806] minix_write_begin+0x35/0xc0 [ 43.434854] generic_perform_write+0x1c9/0x420 [ 43.439423] ? page_endio+0x540/0x540 [ 43.443555] ? current_time+0xb0/0xb0 [ 43.447363] ? lock_acquire+0x170/0x3f0 [ 43.451321] __generic_file_write_iter+0x227/0x590 [ 43.456342] generic_file_write_iter+0x2fa/0x650 [ 43.461257] ? iov_iter_init+0xa6/0x1c0 [ 43.465253] __vfs_write+0x44e/0x630 [ 43.468981] ? save_trace+0x290/0x290 [ 43.472763] ? kernel_read+0x110/0x110 [ 43.476645] ? save_trace+0x290/0x290 [ 43.480432] ? do_acct_process+0xc41/0xf60 [ 43.484647] __kernel_write+0xf5/0x330 [ 43.488516] do_acct_process+0xb49/0xf60 [ 43.492565] ? acct_put+0x40/0x40 [ 43.496008] ? pin_kill+0xfb/0x650 [ 43.499530] acct_pin_kill+0x28/0xe0 [ 43.503236] pin_kill+0x147/0x650 [ 43.506683] ? pin_insert+0x50/0x50 [ 43.510310] ? __mutex_unlock_slowpath+0x75/0x780 [ 43.515146] ? finish_wait+0x260/0x260 [ 43.519894] SyS_acct+0x528/0x850 [ 43.523343] ? acct_pin_kill+0xe0/0xe0 [ 43.527240] do_syscall_64+0x1d5/0x640 [ 43.531132] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 43.536319] RIP: 0033:0x44ba09 [ 43.539492] RSP: 002b:00007fcb001b8ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a3 [ 43.547184] RAX: ffffffffffffffda RBX: 00000000006e39c8 RCX: 000000000044ba09 [ 43.554435] RDX: 000000000044ba09 RSI: edc86c9e6ad7551b RDI: 0000000020000480 [ 43.561716] RBP: 00000000006e39c0 R08: 0000000000000000 R09: 0000000000000000 [ 43.569093] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e39cc [ 43.576461] R13: 00007fffcc728b7f R14: 00007fcb001b99c0 R15: 0000000000000000 [ 43.584368] Kernel Offset: disabled [ 43.587988] Rebooting in 86400 seconds..