================================================================== BUG: KCSAN: data-race in d_delete / lookup_fast write to 0xffff88813141d300 of 4 bytes by task 24093 on cpu 1: d_delete+0x6e/0xe0 fs/dcache.c:2504 vfs_unlink+0x3d8/0x400 fs/namei.c:4039 do_unlinkat+0x238/0x4f0 fs/namei.c:4092 __do_sys_unlink fs/namei.c:4139 [inline] __se_sys_unlink fs/namei.c:4137 [inline] __x64_sys_unlink+0x2c/0x30 fs/namei.c:4137 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88813141d300 of 4 bytes by task 1037 on cpu 0: d_revalidate fs/namei.c:826 [inline] lookup_fast+0x15f/0x350 fs/namei.c:1578 walk_component+0x5c/0x350 fs/namei.c:1938 lookup_last fs/namei.c:2397 [inline] path_lookupat+0x12d/0x570 fs/namei.c:2421 filename_lookup+0xff/0x390 fs/namei.c:2454 user_path_at_empty+0x3b/0x50 fs/namei.c:2734 do_readlinkat+0x87/0x200 fs/stat.c:425 __do_sys_readlink fs/stat.c:458 [inline] __se_sys_readlink fs/stat.c:455 [inline] __x64_sys_readlink+0x43/0x50 fs/stat.c:455 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00600108 -> 0x00008008 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 1037 Comm: systemd-udevd Not tainted 5.13.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ================================================================== loop2: p1 p2 p4 < p5 p6 p7 p8 p9 p10 p11 p12 p13 p14 p15 p16 p17 p18 p19 p20 p21 p22 p23 p24 p25 p26 p27 p28 p29 p30 p31 p32 p33 p34 p35 p36 p37 p38 p39 p40 p41 p42 p43 p44 p45 p46 p47 p48 p49 p50 p51 p52 p53 p54 p55 p56 p57 p58 p59 p60 p61 p62 p63 p64 p65 p66 p67 p68 p69 p70 p71 p72 p73 p74 p75 p76 p77 p78 p79 p80 p81 p82 p83 p84 p85 p86 p87 p88 p89 p90 p91 p92 p93 p94 p95 p96 p97 p98 p99 p100 p101 p102 p103 p104 p105 p106 p107 p108 p109 p110 p111 p112 p113 p114 p115 p116 p117 p118 p119 p120 p121 p122 p123 p124 p125 p126 p127 p128 p129 p130 p131 p132 p133 p134 p135 p136 p137 p138 p139 p140 p141 p142 p143 p144 p145 p146 p147 p148 p149 p150 p151 p152 p153 p154 p155 p156 p157 p158 p159 p160 p161 p162 p163 p164 p165 p166 p167 p168 p169 p170 p171 p172 p173 p174 p175 p176 p177 p178 p179 p180 p181 p182 p183 p184 p185 p186 p187 p188 p189 p190 p191 p192 p193 p194 p195 p196 p197 p198 p199 p200 p201 p202 p203 p204 p205 p206 p207 p208 p209 p210 p211 p212 p213 p214 p215 loop2: p1 start 10 is beyond EOD, truncated loop2: p2 size 1073872896 extends beyond EOD, truncated loop2: p4 size 2 extends beyond EOD, truncated loop2: p5 start 10 is beyond EOD, truncated loop2: p6 size 1073872896 extends beyond EOD, truncated loop2: p7 start 10 is beyond EOD, truncated loop2: p8 size 1073872896 extends beyond EOD, truncated loop2: p9 start 10 is beyond EOD, truncated loop2: p10 size 1073872896 extends beyond EOD, truncated loop2: p11 start 10 is beyond EOD, truncated loop2: p12 size 1073872896 extends beyond EOD, truncated loop2: p13 start 10 is beyond EOD, truncated loop2: p14 size 1073872896 extends beyond EOD, truncated loop2: p15 start 10 is beyond EOD, truncated loop2: p16 size 1073872896 extends beyond EOD, truncated loop2: p17 start 10 is beyond EOD, truncated loop2: p18 size 1073872896 extends beyond EOD, truncated loop2: p19 start 10 is beyond EOD, truncated loop2: p20 size 1073872896 extends beyond EOD, truncated loop2: p21 start 10 is beyond EOD, truncated loop2: p22 size 1073872896 extends beyond EOD, truncated loop2: p23 start 10 is beyond EOD, truncated loop2: p24 size 1073872896 extends beyond EOD, truncated loop2: p25 start 10 is beyond EOD, truncated loop2: p26 size 1073872896 extends beyond EOD, truncated loop2: p27 start 10 is beyond EOD, truncated loop2: p28 size 1073872896 extends beyond EOD, truncated loop2: p29 start 10 is beyond EOD, truncated loop2: p30 size 1073872896 extends beyond EOD, truncated loop2: p31 start 10 is beyond EOD, truncated loop2: p32 size 1073872896 extends beyond EOD, truncated loop2: p33 start 10 is beyond EOD, truncated loop2: p34 size 1073872896 extends beyond EOD, truncated loop2: p35 start 10 is beyond EOD, truncated loop2: p36 size 1073872896 extends beyond EOD, truncated loop2: p37 start 10 is beyond EOD, truncated loop2: p38 size 1073872896 extends beyond EOD, truncated loop2: p39 start 10 is beyond EOD, truncated loop2: p40 size 1073872896 extends beyond EOD, truncated loop2: p41 start 10 is beyond EOD, truncated loop2: p42 size 1073872896 extends beyond EOD, truncated loop2: p43 start 10 is beyond EOD, truncated loop2: p44 size 1073872896 extends beyond EOD, truncated loop2: p45 start 10 is beyond EOD, truncated loop2: p46 size 1073872896 extends beyond EOD, truncated loop2: p47 start 10 is beyond EOD, truncated loop2: p48 size 1073872896 extends beyond EOD, truncated loop2: p49 start 10 is beyond EOD, truncated loop2: p50 size 1073872896 extends beyond EOD, truncated loop2: p51 start 10 is beyond EOD, truncated loop2: p52 size 1073872896 extends beyond EOD, truncated loop2: p53 start 10 is beyond EOD, truncated loop2: p54 size 1073872896 extends beyond EOD, truncated loop2: p55 start 10 is beyond EOD, truncated loop2: p56 size 1073872896 extends beyond EOD, truncated loop2: p57 start 10 is beyond EOD, truncated loop2: p58 size 1073872896 extends beyond EOD, truncated loop2: p59 start 10 is beyond EOD, truncated loop2: p60 size 1073872896 extends beyond EOD, truncated loop2: p61 start 10 is beyond EOD, truncated loop2: p62 size 1073872896 extends beyond EOD, truncated loop2: p63 start 10 is beyond EOD, truncated loop2: p64 size 1073872896 extends beyond EOD, truncated loop2: p65 start 10 is beyond EOD, truncated loop2: p66 size 1073872896 extends beyond EOD, truncated loop2: p67 start 10 is beyond EOD, truncated loop2: p68 size 1073872896 extends beyond EOD, truncated loop2: p69 start 10 is beyond EOD, truncated loop2: p70 size 1073872896 extends beyond EOD, truncated loop2: p71 start 10 is beyond EOD, truncated loop2: p72 size 1073872896 extends beyond EOD, truncated loop2: p73 start 10 is beyond EOD, truncated loop2: p74 size 1073872896 extends beyond EOD, truncated loop2: p75 start 10 is beyond EOD, truncated loop2: p76 size 1073872896 extends beyond EOD, truncated loop2: p77 start 10 is beyond EOD, truncated loop2: p78 size 1073872896 extends beyond EOD, truncated loop2: p79 start 10 is beyond EOD, truncated loop2: p80 size 1073872896 extends beyond EOD, truncated loop2: p81 start 10 is beyond EOD, truncated loop2: p82 size 1073872896 extends beyond EOD, truncated loop2: p83 start 10 is beyond EOD, truncated loop2: p84 size 1073872896 extends beyond EOD, truncated loop2: p85 start 10 is beyond EOD, truncated loop2: p86 size 1073872896 extends beyond EOD, truncated loop2: p87 start 10 is beyond EOD, truncated loop2: p88 size 1073872896 extends beyond EOD, truncated loop2: p89 start 10 is beyond EOD, truncated loop2: p90 size 1073872896 extends beyond EOD, truncated loop2: p91 start 10 is beyond EOD, truncated loop2: p92 size 1073872896 extends beyond EOD, truncated loop2: p93 start 10 is beyond EOD, truncated loop2: p94 size 1073872896 extends beyond EOD, truncated loop2: p95 start 10 is beyond EOD, truncated loop2: p96 size 1073872896 extends beyond EOD, truncated loop2: p97 start 10 is beyond EOD, truncated loop2: p98 size 1073872896 extends beyond EOD, truncated loop2: p99 start 10 is beyond EOD, truncated loop2: p100 size 1073872896 extends beyond EOD, truncated loop2: p101 start 10 is beyond EOD, truncated loop2: p102 size 1073872896 extends beyond EOD, truncated loop2: p103 start 10 is beyond EOD, truncated loop2: p104 size 1073872896 extends beyond EOD, truncated loop2: p105 start 10 is beyond EOD, truncated loop2: p106 size 1073872896 extends beyond EOD, truncated loop2: p107 start 10 is beyond EOD, truncated loop2: p108 size 1073872896 extends beyond EOD, truncated loop2: p109 start 10 is beyond EOD, truncated loop2: p110 size 1073872896 extends beyond EOD, truncated loop2: p111 start 10 is beyond EOD, truncated loop2: p112 size 1073872896 extends beyond EOD, truncated loop2: p113 start 10 is beyond EOD, truncated loop2: p114 size 1073872896 extends beyond EOD, truncated loop2: p115 start 10 is beyond EOD, truncated loop2: p116 size 1073872896 extends beyond EOD, truncated loop2: p117 start 10 is beyond EOD, truncated loop2: p118 size 1073872896 extends beyond EOD, truncated loop2: p119 start 10 is beyond EOD, truncated loop2: p120 size 1073872896 extends beyond EOD, truncated loop2: p121 start 10 is beyond EOD, truncated loop2: p122 size 1073872896 extends beyond EOD, truncated loop2: p123 start 10 is beyond EOD, truncated loop2: p124 size 1073872896 extends beyond EOD, truncated loop2: p125 start 10 is beyond EOD, truncated loop2: p126 size 1073872896 extends beyond EOD, truncated loop2: p127 start 10 is beyond EOD, truncated loop2: p128 size 1073872896 extends beyond EOD, truncated loop2: p129 start 10 is beyond EOD, truncated loop2: p130 size 1073872896 extends beyond EOD, truncated loop2: p131 start 10 is beyond EOD, truncated loop2: p132 size 1073872896 extends beyond EOD, truncated loop2: p133 start 10 is beyond EOD, truncated loop2: p134 size 1073872896 extends beyond EOD, truncated loop2: p135 start 10 is beyond EOD, truncated loop2: p136 size 1073872896 extends beyond EOD, truncated loop2: p137 start 10 is beyond EOD, truncated loop2: p138 size 1073872896 extends beyond EOD, truncated loop2: p139 start 10 is beyond EOD, truncated loop2: p140 size 1073872896 extends beyond EOD, truncated loop2: p141 start 10 is beyond EOD, truncated loop2: p142 size 1073872896 extends beyond EOD, truncated loop2: p143 start 10 is beyond EOD, truncated loop2: p144 size 1073872896 extends beyond EOD, truncated loop2: p145 start 10 is beyond EOD, truncated loop2: p146 size 1073872896 extends beyond EOD, truncated loop2: p147 start 10 is beyond EOD, truncated loop2: p148 size 1073872896 extends beyond EOD, truncated loop2: p149 start 10 is beyond EOD, truncated loop2: p150 size 1073872896 extends beyond EOD, truncated loop2: p151 start 10 is beyond EOD, truncated loop2: p152 size 1073872896 extends beyond EOD, truncated loop2: p153 start 10 is beyond EOD, truncated loop2: p154 size 1073872896 extends beyond EOD, truncated loop2: p155 start 10 is beyond EOD, truncated loop2: p156 size 1073872896 extends beyond EOD, truncated loop2: p157 start 10 is beyond EOD, truncated loop2: p158 size 1073872896 extends beyond EOD, truncated loop2: p159 start 10 is beyond EOD, truncated loop2: p160 size 1073872896 extends beyond EOD, truncated loop2: p161 start 10 is beyond EOD, truncated loop2: p162 size 1073872896 extends beyond EOD, truncated loop2: p163 start 10 is beyond EOD, truncated loop2: p164 size 1073872896 extends beyond EOD, truncated loop2: p165 start 10 is beyond EOD, truncated loop2: p166 size 1073872896 extends beyond EOD, truncated loop2: p167 start 10 is beyond EOD, truncated loop2: p168 size 1073872896 extends beyond EOD, truncated loop2: p169 start 10 is beyond EOD, truncated loop2: p170 size 1073872896 extends beyond EOD, truncated loop2: p171 start 10 is beyond EOD, truncated loop2: p172 size 1073872896 extends beyond EOD, truncated loop2: p173 start 10 is beyond EOD, truncated loop2: p174 size 1073872896 extends beyond EOD, truncated loop2: p175 start 10 is beyond EOD, truncated loop2: p176 size 1073872896 extends beyond EOD, truncated loop2: p177 start 10 is beyond EOD, truncated loop2: p178 size 1073872896 extends beyond EOD, truncated loop2: p179 start 10 is beyond EOD, truncated loop2: p180 size 1073872896 extends beyond EOD, truncated loop2: p181 start 10 is beyond EOD, truncated loop2: p182 size 1073872896 extends beyond EOD, truncated loop2: p183 start 10 is beyond EOD, truncated loop2: p184 size 1073872896 extends beyond EOD, truncated loop2: p185 start 10 is beyond EOD, truncated loop2: p186 size 1073872896 extends beyond EOD, truncated loop2: p187 start 10 is beyond EOD, truncated loop2: p188 size 1073872896 extends beyond EOD, truncated loop2: p189 start 10 is beyond EOD, truncated loop2: p190 size 1073872896 extends beyond EOD, truncated loop2: p191 start 10 is beyond EOD, truncated loop2: p192 size 1073872896 extends beyond EOD, truncated loop2: p193 start 10 is beyond EOD, truncated loop2: p194 size 1073872896 extends beyond EOD, truncated loop2: p195 start 10 is beyond EOD, truncated loop2: p196 size 1073872896 extends beyond EOD, truncated loop2: p197 start 10 is beyond EOD, truncated loop2: p198 size 1073872896 extends beyond EOD, truncated loop2: p199 start 10 is beyond EOD, truncated loop2: p200 size 1073872896 extends beyond EOD, truncated loop2: p201 start 10 is beyond EOD, truncated loop2: p202 size 1073872896 extends beyond EOD, truncated loop2: p203 start 10 is beyond EOD, truncated loop2: p204 size 1073872896 extends beyond EOD, truncated loop2: p205 start 10 is beyond EOD, truncated loop2: p206 size 1073872896 extends beyond EOD, truncated loop2: p207 start 10 is beyond EOD, truncated