[ 37.884326][ T3023] 8021q: adding VLAN 0 to HW filter on device eth8 Warning: Permanently added '10.128.1.190' (ED25519) to the list of known hosts. sched_setaffinity: Invalid argument sched_setaffinity: Invalid argument [ 43.101560][ T3634] ================================================================== [ 43.101600][ T3634] BUG: KCSAN: data-race in __d_instantiate / lookup_fast [ 43.101640][ T3634] [ 43.101647][ T3634] read-write to 0xffff8881004dc900 of 4 bytes by task 3633 on cpu 0: [ 43.101665][ T3634] __d_instantiate+0x2a8/0x390 [ 43.101693][ T3634] d_instantiate_new+0x68/0xf0 [ 43.101723][ T3634] ext4_add_nondir+0x187/0x1b0 [ 43.101744][ T3634] ext4_symlink+0x58f/0x660 [ 43.101760][ T3634] vfs_symlink+0xfd/0x220 [ 43.101782][ T3634] filename_symlinkat+0xe8/0x2b0 [ 43.101799][ T3634] __se_sys_symlink+0x42/0x1b0 [ 43.101819][ T3634] __x64_sys_symlink+0x31/0x40 [ 43.101840][ T3634] x64_sys_call+0x211f/0x2550 [ 43.101867][ T3634] do_syscall_64+0x112/0x360 [ 43.101891][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.101914][ T3634] [ 43.101920][ T3634] read to 0xffff8881004dc900 of 4 bytes by task 3634 on cpu 1: [ 43.101935][ T3634] lookup_fast+0xf1/0x320 [ 43.101958][ T3634] path_lookupat+0x120/0x4c0 [ 43.101980][ T3634] filename_lookup+0x18f/0x390 [ 43.102005][ T3634] do_readlinkat+0x74/0x2f0 [ 43.102033][ T3634] __x64_sys_readlink+0x47/0x60 [ 43.102058][ T3634] x64_sys_call+0x1d41/0x2550 [ 43.102087][ T3634] do_syscall_64+0x112/0x360 [ 43.102107][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.102130][ T3634] [ 43.102134][ T3634] value changed: 0x00040040 -> 0x00340040 [ 43.102147][ T3634] [ 43.102151][ T3634] Reported by Kernel Concurrency Sanitizer on: [ 43.102174][ T3634] CPU: 1 UID: 0 PID: 3634 Comm: syz-executor337 Not tainted syzkaller #0 PREEMPT(lazy) [ 43.102207][ T3634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 43.102222][ T3634] ================================================================== [ 43.319974][ T3634] ================================================================== [ 43.320007][ T3634] BUG: KCSAN: data-race in dont_mount / lookup_fast [ 43.320035][ T3634] [ 43.320042][ T3634] read-write to 0xffff8881004ea0c0 of 4 bytes by task 3633 on cpu 0: [ 43.320061][ T3634] dont_mount+0x2a/0x40 [ 43.320088][ T3634] vfs_unlink+0x202/0x490 [ 43.320107][ T3634] filename_unlinkat+0x1dc/0x410 [ 43.320126][ T3634] __se_sys_unlink+0x2b/0xe0 [ 43.320146][ T3634] __x64_sys_unlink+0x1f/0x30 [ 43.320164][ T3634] x64_sys_call+0x18ee/0x2550 [ 43.320190][ T3634] do_syscall_64+0x112/0x360 [ 43.320213][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.320238][ T3634] [ 43.320244][ T3634] read to 0xffff8881004ea0c0 of 4 bytes by task 3634 on cpu 1: [ 43.320262][ T3634] lookup_fast+0xf1/0x320 [ 43.320289][ T3634] path_lookupat+0x120/0x4c0 [ 43.320313][ T3634] filename_lookup+0x18f/0x390 [ 43.320333][ T3634] do_readlinkat+0x74/0x2f0 [ 43.320354][ T3634] __x64_sys_readlink+0x47/0x60 [ 43.320375][ T3634] x64_sys_call+0x1d41/0x2550 [ 43.320400][ T3634] do_syscall_64+0x112/0x360 [ 43.320422][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.320445][ T3634] [ 43.320450][ T3634] value changed: 0x00340000 -> 0x00040040 [ 43.320462][ T3634] [ 43.320467][ T3634] Reported by Kernel Concurrency Sanitizer on: [ 43.320480][ T3634] CPU: 1 UID: 0 PID: 3634 Comm: syz-executor337 Not tainted syzkaller #0 PREEMPT(lazy) [ 43.320503][ T3634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 43.320514][ T3634] ================================================================== [ 43.570893][ T3635] ================================================================== [ 43.570931][ T3635] BUG: KCSAN: data-race in __d_instantiate / path_lookupat [ 43.570968][ T3635] [ 43.570978][ T3635] write to 0xffff88810734bab0 of 8 bytes by task 3633 on cpu 0: [ 43.570996][ T3635] __d_instantiate+0x1db/0x390 [ 43.571026][ T3635] d_instantiate_new+0x68/0xf0 [ 43.571055][ T3635] ext4_add_nondir+0x187/0x1b0 [ 43.571077][ T3635] ext4_symlink+0x58f/0x660 [ 43.571094][ T3635] vfs_symlink+0xfd/0x220 [ 43.571110][ T3635] filename_symlinkat+0xe8/0x2b0 [ 43.571127][ T3635] __se_sys_symlink+0x42/0x1b0 [ 43.571146][ T3635] __x64_sys_symlink+0x31/0x40 [ 43.571163][ T3635] x64_sys_call+0x211f/0x2550 [ 43.571186][ T3635] do_syscall_64+0x112/0x360 [ 43.571208][ T3635] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.571231][ T3635] [ 43.571237][ T3635] read to 0xffff88810734bab0 of 8 bytes by task 3635 on cpu 1: [ 43.571255][ T3635] path_lookupat+0x1eb/0x4c0 [ 43.571280][ T3635] filename_lookup+0x18f/0x390 [ 43.571302][ T3635] do_readlinkat+0x74/0x2f0 [ 43.571327][ T3635] __x64_sys_readlink+0x47/0x60 [ 43.571352][ T3635] x64_sys_call+0x1d41/0x2550 [ 43.571379][ T3635] do_syscall_64+0x112/0x360 [ 43.571399][ T3635] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.571423][ T3635] [ 43.571427][ T3635] value changed: 0x0000000000000000 -> 0xffff88810737f9c8 [ 43.571438][ T3635] [ 43.571442][ T3635] Reported by Kernel Concurrency Sanitizer on: [ 43.571453][ T3635] CPU: 1 UID: 0 PID: 3635 Comm: syz-executor337 Not tainted syzkaller #0 PREEMPT(lazy) [ 43.571482][ T3635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 43.571496][ T3635] ================================================================== [ 43.799918][ T3634] ================================================================== [ 43.799953][ T3634] BUG: KCSAN: data-race in dont_mount / step_into_slowpath [ 43.799983][ T3634] [ 43.799990][ T3634] read-write to 0xffff8881004df480 of 4 bytes by task 3633 on cpu 0: [ 43.800009][ T3634] dont_mount+0x2a/0x40 [ 43.800028][ T3634] vfs_unlink+0x202/0x490 [ 43.800046][ T3634] filename_unlinkat+0x1dc/0x410 [ 43.800063][ T3634] __se_sys_unlink+0x2b/0xe0 [ 43.800079][ T3634] __x64_sys_unlink+0x1f/0x30 [ 43.800095][ T3634] x64_sys_call+0x18ee/0x2550 [ 43.800119][ T3634] do_syscall_64+0x112/0x360 [ 43.800142][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.800166][ T3634] [ 43.800172][ T3634] read to 0xffff8881004df480 of 4 bytes by task 3634 on cpu 1: [ 43.800189][ T3634] step_into_slowpath+0x139/0x4c0 [ 43.800213][ T3634] path_lookupat+0x2eb/0x4c0 [ 43.800235][ T3634] filename_lookup+0x18f/0x390 [ 43.800260][ T3634] do_readlinkat+0x74/0x2f0 [ 43.800288][ T3634] __x64_sys_readlink+0x47/0x60 [ 43.800313][ T3634] x64_sys_call+0x1d41/0x2550 [ 43.800340][ T3634] do_syscall_64+0x112/0x360 [ 43.800359][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.800377][ T3634] [ 43.800380][ T3634] value changed: 0x00340000 -> 0x00040040 [ 43.800390][ T3634] [ 43.800394][ T3634] Reported by Kernel Concurrency Sanitizer on: [ 43.800405][ T3634] CPU: 1 UID: 0 PID: 3634 Comm: syz-executor337 Not tainted syzkaller #0 PREEMPT(lazy) [ 43.800431][ T3634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 43.800445][ T3634] ================================================================== [ 43.800612][ T3634] ================================================================== [ 43.800643][ T3634] BUG: KCSAN: data-race in __d_instantiate / path_lookupat [ 43.800698][ T3634] [ 43.800704][ T3634] read-write to 0xffff8881004df480 of 4 bytes by task 3633 on cpu 0: [ 43.800722][ T3634] __d_instantiate+0x2a8/0x390 [ 43.800746][ T3634] d_instantiate_new+0x68/0xf0 [ 43.800773][ T3634] ext4_add_nondir+0x187/0x1b0 [ 43.800793][ T3634] ext4_symlink+0x58f/0x660 [ 43.800809][ T3634] vfs_symlink+0xfd/0x220 [ 43.800828][ T3634] filename_symlinkat+0xe8/0x2b0 [ 43.800849][ T3634] __se_sys_symlink+0x42/0x1b0 [ 43.800871][ T3634] __x64_sys_symlink+0x31/0x40 [ 43.800892][ T3634] x64_sys_call+0x211f/0x2550 [ 43.800918][ T3634] do_syscall_64+0x112/0x360 [ 43.800938][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.800961][ T3634] [ 43.800967][ T3634] read to 0xffff8881004df480 of 4 bytes by task 3634 on cpu 1: [ 43.800981][ T3634] path_lookupat+0x19b/0x4c0 [ 43.801001][ T3634] filename_lookup+0x18f/0x390 [ 43.801020][ T3634] do_readlinkat+0x74/0x2f0 [ 43.801041][ T3634] __x64_sys_readlink+0x47/0x60 [ 43.801064][ T3634] x64_sys_call+0x1d41/0x2550 [ 43.801087][ T3634] do_syscall_64+0x112/0x360 [ 43.801107][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 43.801129][ T3634] [ 43.801133][ T3634] value changed: 0x00040040 -> 0x00340040 [ 43.801145][ T3634] [ 43.801148][ T3634] Reported by Kernel Concurrency Sanitizer on: [ 43.801158][ T3634] CPU: 1 UID: 0 PID: 3634 Comm: syz-executor337 Not tainted syzkaller #0 PREEMPT(lazy) [ 43.801185][ T3634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 43.801197][ T3634] ================================================================== [ 44.413552][ T3634] ================================================================== [ 44.413595][ T3634] BUG: KCSAN: data-race in dentry_unlink_inode / step_into_slowpath [ 44.413633][ T3634] [ 44.413639][ T3634] write to 0xffff8881006f5270 of 8 bytes by task 3633 on cpu 0: [ 44.413653][ T3634] dentry_unlink_inode+0x65/0x260 [ 44.413683][ T3634] d_delete+0x164/0x180 [ 44.413712][ T3634] d_delete_notify+0x32/0x100 [ 44.413731][ T3634] vfs_unlink+0x287/0x490 [ 44.413749][ T3634] filename_unlinkat+0x1dc/0x410 [ 44.413769][ T3634] __se_sys_unlink+0x2b/0xe0 [ 44.413788][ T3634] __x64_sys_unlink+0x1f/0x30 [ 44.413806][ T3634] x64_sys_call+0x18ee/0x2550 [ 44.413829][ T3634] do_syscall_64+0x112/0x360 [ 44.413850][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 44.413874][ T3634] [ 44.413880][ T3634] read to 0xffff8881006f5270 of 8 bytes by task 3634 on cpu 1: [ 44.413898][ T3634] step_into_slowpath+0x12c/0x4c0 [ 44.413922][ T3634] path_lookupat+0x2eb/0x4c0 [ 44.413943][ T3634] filename_lookup+0x18f/0x390 [ 44.413967][ T3634] do_readlinkat+0x74/0x2f0 [ 44.413992][ T3634] __x64_sys_readlink+0x47/0x60 [ 44.414014][ T3634] x64_sys_call+0x1d41/0x2550 [ 44.414041][ T3634] do_syscall_64+0x112/0x360 [ 44.414062][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 44.414082][ T3634] [ 44.414085][ T3634] value changed: 0xffff8881073aa578 -> 0x0000000000000000 [ 44.414096][ T3634] [ 44.414099][ T3634] Reported by Kernel Concurrency Sanitizer on: [ 44.414110][ T3634] CPU: 1 UID: 0 PID: 3634 Comm: syz-executor337 Not tainted syzkaller #0 PREEMPT(lazy) [ 44.414133][ T3634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 44.414146][ T3634] ================================================================== [ 44.792705][ T3634] ================================================================== [ 44.792734][ T3634] BUG: KCSAN: data-race in dont_mount / path_lookupat [ 44.792762][ T3634] [ 44.792769][ T3634] read-write to 0xffff8881004da3c0 of 4 bytes by task 3633 on cpu 0: [ 44.792787][ T3634] dont_mount+0x2a/0x40 [ 44.792806][ T3634] vfs_unlink+0x202/0x490 [ 44.792825][ T3634] filename_unlinkat+0x1dc/0x410 [ 44.792842][ T3634] __se_sys_unlink+0x2b/0xe0 [ 44.792858][ T3634] __x64_sys_unlink+0x1f/0x30 [ 44.792873][ T3634] x64_sys_call+0x18ee/0x2550 [ 44.792896][ T3634] do_syscall_64+0x112/0x360 [ 44.792919][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 44.792943][ T3634] [ 44.792949][ T3634] read to 0xffff8881004da3c0 of 4 bytes by task 3634 on cpu 1: [ 44.792966][ T3634] path_lookupat+0x19b/0x4c0 [ 44.792991][ T3634] filename_lookup+0x18f/0x390 [ 44.793011][ T3634] do_readlinkat+0x74/0x2f0 [ 44.793034][ T3634] __x64_sys_readlink+0x47/0x60 [ 44.793054][ T3634] x64_sys_call+0x1d41/0x2550 [ 44.793080][ T3634] do_syscall_64+0x112/0x360 [ 44.793101][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 44.793124][ T3634] [ 44.793128][ T3634] value changed: 0x00340040 -> 0x00040040 [ 44.793141][ T3634] [ 44.793145][ T3634] Reported by Kernel Concurrency Sanitizer on: [ 44.793157][ T3634] CPU: 1 UID: 0 PID: 3634 Comm: syz-executor337 Not tainted syzkaller #0 PREEMPT(lazy) [ 44.793181][ T3634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 44.793193][ T3634] ================================================================== [ 45.233873][ T3634] ================================================================== [ 45.233905][ T3634] BUG: KCSAN: data-race in dont_mount / step_into_slowpath [ 45.233938][ T3634] [ 45.233944][ T3634] read-write to 0xffff88810734b300 of 4 bytes by task 3633 on cpu 0: [ 45.233960][ T3634] dont_mount+0x2a/0x40 [ 45.233975][ T3634] vfs_unlink+0x202/0x490 [ 45.233990][ T3634] filename_unlinkat+0x1dc/0x410 [ 45.234006][ T3634] __se_sys_unlink+0x2b/0xe0 [ 45.234023][ T3634] __x64_sys_unlink+0x1f/0x30 [ 45.234039][ T3634] x64_sys_call+0x18ee/0x2550 [ 45.234062][ T3634] do_syscall_64+0x112/0x360 [ 45.234084][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 45.234104][ T3634] [ 45.234109][ T3634] read to 0xffff88810734b300 of 4 bytes by task 3634 on cpu 1: [ 45.234123][ T3634] step_into_slowpath+0xea/0x4c0 [ 45.234146][ T3634] path_lookupat+0x2eb/0x4c0 [ 45.234170][ T3634] filename_lookup+0x18f/0x390 [ 45.234190][ T3634] do_readlinkat+0x74/0x2f0 [ 45.234212][ T3634] __x64_sys_readlink+0x47/0x60 [ 45.234232][ T3634] x64_sys_call+0x1d41/0x2550 [ 45.234257][ T3634] do_syscall_64+0x112/0x360 [ 45.234279][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 45.234302][ T3634] [ 45.234306][ T3634] value changed: 0x00340040 -> 0x00040040 [ 45.234318][ T3634] [ 45.234322][ T3634] Reported by Kernel Concurrency Sanitizer on: [ 45.234334][ T3634] CPU: 1 UID: 0 PID: 3634 Comm: syz-executor337 Not tainted syzkaller #0 PREEMPT(lazy) [ 45.234357][ T3634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 45.234368][ T3634] ================================================================== [ 45.827352][ T3634] ================================================================== [ 45.827394][ T3634] BUG: KCSAN: data-race in d_lru_add / lookup_fast [ 45.827432][ T3634] [ 45.827439][ T3634] write to 0xffff888107348a80 of 4 bytes by task 3633 on cpu 0: [ 45.827457][ T3634] d_lru_add+0x45/0x100 [ 45.827487][ T3634] fast_dput+0x272/0x300 [ 45.827505][ T3634] dput+0x1f/0x50 [ 45.827523][ T3634] filename_symlinkat+0x11f/0x2b0 [ 45.827545][ T3634] __se_sys_symlink+0x42/0x1b0 [ 45.827566][ T3634] __x64_sys_symlink+0x31/0x40 [ 45.827586][ T3634] x64_sys_call+0x211f/0x2550 [ 45.827609][ T3634] do_syscall_64+0x112/0x360 [ 45.827629][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 45.827650][ T3634] [ 45.827656][ T3634] read to 0xffff888107348a80 of 4 bytes by task 3634 on cpu 1: [ 45.827674][ T3634] lookup_fast+0xf1/0x320 [ 45.827700][ T3634] path_lookupat+0x120/0x4c0 [ 45.827724][ T3634] filename_lookup+0x18f/0x390 [ 45.827747][ T3634] do_readlinkat+0x74/0x2f0 [ 45.827769][ T3634] __x64_sys_readlink+0x47/0x60 [ 45.827792][ T3634] x64_sys_call+0x1d41/0x2550 [ 45.827819][ T3634] do_syscall_64+0x112/0x360 [ 45.827840][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 45.827863][ T3634] [ 45.827867][ T3634] value changed: 0x00300000 -> 0x00040040 [ 45.827880][ T3634] [ 45.827884][ T3634] Reported by Kernel Concurrency Sanitizer on: [ 45.827899][ T3634] CPU: 1 UID: 0 PID: 3634 Comm: syz-executor337 Not tainted syzkaller #0 PREEMPT(lazy) [ 45.827926][ T3634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 45.827939][ T3634] ================================================================== [ 46.124390][ T3635] ================================================================== [ 46.124430][ T3635] BUG: KCSAN: data-race in __d_instantiate / lookup_fast [ 46.124469][ T3635] [ 46.124476][ T3635] read-write to 0xffff88810734f240 of 4 bytes by task 3633 on cpu 0: [ 46.124494][ T3635] __d_instantiate+0x2a8/0x390 [ 46.124524][ T3635] d_instantiate_new+0x68/0xf0 [ 46.124549][ T3635] ext4_add_nondir+0x187/0x1b0 [ 46.124569][ T3635] ext4_symlink+0x58f/0x660 [ 46.124586][ T3635] vfs_symlink+0xfd/0x220 [ 46.124605][ T3635] filename_symlinkat+0xe8/0x2b0 [ 46.124626][ T3635] __se_sys_symlink+0x42/0x1b0 [ 46.124647][ T3635] __x64_sys_symlink+0x31/0x40 [ 46.124668][ T3635] x64_sys_call+0x211f/0x2550 [ 46.124696][ T3635] do_syscall_64+0x112/0x360 [ 46.124717][ T3635] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 46.124736][ T3635] [ 46.124741][ T3635] read to 0xffff88810734f240 of 4 bytes by task 3635 on cpu 1: [ 46.124761][ T3635] lookup_fast+0xf1/0x320 [ 46.124787][ T3635] path_lookupat+0x120/0x4c0 [ 46.124812][ T3635] filename_lookup+0x18f/0x390 [ 46.124837][ T3635] do_readlinkat+0x74/0x2f0 [ 46.124870][ T3635] __x64_sys_readlink+0x47/0x60 [ 46.124891][ T3635] x64_sys_call+0x1d41/0x2550 [ 46.124918][ T3635] do_syscall_64+0x112/0x360 [ 46.124938][ T3635] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 46.124957][ T3635] [ 46.124960][ T3635] value changed: 0x00040040 -> 0x00340040 [ 46.124970][ T3635] [ 46.124974][ T3635] Reported by Kernel Concurrency Sanitizer on: [ 46.124985][ T3635] CPU: 1 UID: 0 PID: 3635 Comm: syz-executor337 Not tainted syzkaller #0 PREEMPT(lazy) [ 46.125013][ T3635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 46.125027][ T3635] ================================================================== [ 46.591768][ T3634] ================================================================== [ 46.591807][ T3634] BUG: KCSAN: data-race in __d_instantiate / path_lookupat [ 46.591851][ T3634] [ 46.591859][ T3634] write to 0xffff8881004da3f0 of 8 bytes by task 3633 on cpu 0: [ 46.591875][ T3634] __d_instantiate+0x1db/0x390 [ 46.591899][ T3634] d_instantiate_new+0x68/0xf0 [ 46.591928][ T3634] ext4_add_nondir+0x187/0x1b0 [ 46.591952][ T3634] ext4_symlink+0x58f/0x660 [ 46.591971][ T3634] vfs_symlink+0xfd/0x220 [ 46.591991][ T3634] filename_symlinkat+0xe8/0x2b0 [ 46.592009][ T3634] __se_sys_symlink+0x42/0x1b0 [ 46.592026][ T3634] __x64_sys_symlink+0x31/0x40 [ 46.592045][ T3634] x64_sys_call+0x211f/0x2550 [ 46.592067][ T3634] do_syscall_64+0x112/0x360 [ 46.592086][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 46.592107][ T3634] [ 46.592111][ T3634] read to 0xffff8881004da3f0 of 8 bytes by task 3634 on cpu 1: [ 46.592124][ T3634] path_lookupat+0x1eb/0x4c0 [ 46.592142][ T3634] filename_lookup+0x18f/0x390 [ 46.592161][ T3634] do_readlinkat+0x74/0x2f0 [ 46.592185][ T3634] __x64_sys_readlink+0x47/0x60 [ 46.592206][ T3634] x64_sys_call+0x1d41/0x2550 [ 46.592228][ T3634] do_syscall_64+0x112/0x360 [ 46.592247][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 46.592265][ T3634] [ 46.592268][ T3634] value changed: 0x0000000000000000 -> 0xffff888107390908 [ 46.592280][ T3634] [ 46.592283][ T3634] Reported by Kernel Concurrency Sanitizer on: [ 46.592294][ T3634] CPU: 1 UID: 0 PID: 3634 Comm: syz-executor337 Not tainted syzkaller #0 PREEMPT(lazy) [ 46.592316][ T3634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 46.592327][ T3634] ================================================================== [ 46.593169][ T3634] ================================================================== [ 46.593195][ T3634] BUG: KCSAN: data-race in dont_mount / lookup_fast [ 46.593225][ T3634] [ 46.593230][ T3634] read-write to 0xffff8881004eff00 of 4 bytes by task 3633 on cpu 0: [ 46.593244][ T3634] dont_mount+0x2a/0x40 [ 46.593259][ T3634] vfs_unlink+0x202/0x490 [ 46.593273][ T3634] filename_unlinkat+0x1dc/0x410 [ 46.593289][ T3634] __se_sys_unlink+0x2b/0xe0 [ 46.593308][ T3634] __x64_sys_unlink+0x1f/0x30 [ 46.593327][ T3634] x64_sys_call+0x18ee/0x2550 [ 46.593354][ T3634] do_syscall_64+0x112/0x360 [ 46.593375][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 46.593396][ T3634] [ 46.593401][ T3634] read to 0xffff8881004eff00 of 4 bytes by task 3634 on cpu 1: [ 46.593415][ T3634] lookup_fast+0xf1/0x320 [ 46.593436][ T3634] path_lookupat+0x120/0x4c0 [ 46.593457][ T3634] filename_lookup+0x18f/0x390 [ 46.593482][ T3634] do_readlinkat+0x74/0x2f0 [ 46.593507][ T3634] __x64_sys_readlink+0x47/0x60 [ 46.593527][ T3634] x64_sys_call+0x1d41/0x2550 [ 46.593552][ T3634] do_syscall_64+0x112/0x360 [ 46.593573][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 46.593594][ T3634] [ 46.593597][ T3634] value changed: 0x00340000 -> 0x00040040 [ 46.593607][ T3634] [ 46.593610][ T3634] Reported by Kernel Concurrency Sanitizer on: [ 46.593619][ T3634] CPU: 1 UID: 0 PID: 3634 Comm: syz-executor337 Not tainted syzkaller #0 PREEMPT(lazy) [ 46.593641][ T3634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 46.593651][ T3634] ================================================================== [ 47.170428][ T3635] ================================================================== [ 47.170460][ T3635] BUG: KCSAN: data-race in dont_mount / step_into_slowpath [ 47.170485][ T3635] [ 47.170491][ T3635] read-write to 0xffff888107348b40 of 4 bytes by task 3633 on cpu 0: [ 47.170507][ T3635] dont_mount+0x2a/0x40 [ 47.170526][ T3635] vfs_unlink+0x202/0x490 [ 47.170544][ T3635] filename_unlinkat+0x1dc/0x410 [ 47.170564][ T3635] __se_sys_unlink+0x2b/0xe0 [ 47.170583][ T3635] __x64_sys_unlink+0x1f/0x30 [ 47.170599][ T3635] x64_sys_call+0x18ee/0x2550 [ 47.170623][ T3635] do_syscall_64+0x112/0x360 [ 47.170642][ T3635] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 47.170661][ T3635] [ 47.170666][ T3635] read to 0xffff888107348b40 of 4 bytes by task 3635 on cpu 1: [ 47.170682][ T3635] step_into_slowpath+0x139/0x4c0 [ 47.170715][ T3635] path_lookupat+0x2eb/0x4c0 [ 47.170741][ T3635] filename_lookup+0x18f/0x390 [ 47.170766][ T3635] do_readlinkat+0x74/0x2f0 [ 47.170790][ T3635] __x64_sys_readlink+0x47/0x60 [ 47.170810][ T3635] x64_sys_call+0x1d41/0x2550 [ 47.170833][ T3635] do_syscall_64+0x112/0x360 [ 47.170855][ T3635] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 47.170878][ T3635] [ 47.170882][ T3635] value changed: 0x00340040 -> 0x00040040 [ 47.170894][ T3635] [ 47.170898][ T3635] Reported by Kernel Concurrency Sanitizer on: [ 47.170909][ T3635] CPU: 1 UID: 0 PID: 3635 Comm: syz-executor337 Not tainted syzkaller #0 PREEMPT(lazy) [ 47.170933][ T3635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 47.170944][ T3635] ================================================================== [ 47.363410][ T3634] ================================================================== [ 47.363451][ T3634] BUG: KCSAN: data-race in __d_instantiate / path_lookupat [ 47.363487][ T3634] [ 47.363493][ T3634] read-write to 0xffff888107349480 of 4 bytes by task 3633 on cpu 0: [ 47.363511][ T3634] __d_instantiate+0x2a8/0x390 [ 47.363541][ T3634] d_instantiate_new+0x68/0xf0 [ 47.363569][ T3634] ext4_add_nondir+0x187/0x1b0 [ 47.363589][ T3634] ext4_symlink+0x58f/0x660 [ 47.363604][ T3634] vfs_symlink+0xfd/0x220 [ 47.363621][ T3634] filename_symlinkat+0xe8/0x2b0 [ 47.363642][ T3634] __se_sys_symlink+0x42/0x1b0 [ 47.363663][ T3634] __x64_sys_symlink+0x31/0x40 [ 47.363681][ T3634] x64_sys_call+0x211f/0x2550 [ 47.363715][ T3634] do_syscall_64+0x112/0x360 [ 47.363738][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 47.363763][ T3634] [ 47.363769][ T3634] read to 0xffff888107349480 of 4 bytes by task 3634 on cpu 1: [ 47.363787][ T3634] path_lookupat+0x19b/0x4c0 [ 47.363812][ T3634] filename_lookup+0x18f/0x390 [ 47.363836][ T3634] do_readlinkat+0x74/0x2f0 [ 47.363863][ T3634] __x64_sys_readlink+0x47/0x60 [ 47.363888][ T3634] x64_sys_call+0x1d41/0x2550 [ 47.363913][ T3634] do_syscall_64+0x112/0x360 [ 47.363931][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 47.363949][ T3634] [ 47.363952][ T3634] value changed: 0x00040040 -> 0x00340040 [ 47.363963][ T3634] [ 47.363967][ T3634] Reported by Kernel Concurrency Sanitizer on: [ 47.363980][ T3634] CPU: 1 UID: 0 PID: 3634 Comm: syz-executor337 Not tainted syzkaller #0 PREEMPT(lazy) [ 47.364005][ T3634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 47.364018][ T3634] ================================================================== [ 47.990085][ T3634] ================================================================== [ 47.990123][ T3634] BUG: KCSAN: data-race in dentry_unlink_inode / step_into_slowpath [ 47.990160][ T3634] [ 47.990166][ T3634] write to 0xffff8881073537b0 of 8 bytes by task 3633 on cpu 0: [ 47.990183][ T3634] dentry_unlink_inode+0x65/0x260 [ 47.990214][ T3634] d_delete+0x164/0x180 [ 47.990241][ T3634] d_delete_notify+0x32/0x100 [ 47.990260][ T3634] vfs_unlink+0x287/0x490 [+] Race completed. [ 47.990278][ T3634] filename_unlinkat+0x1dc/0x410 [ 47.990298][ T3634] __se_sys_unlink+0x2b/0xe0 [ 47.990318][ T3634] __x64_sys_unlink+0x1f/0x30 [ 47.990337][ T3634] x64_sys_call+0x18ee/0x2550 [ 47.990360][ T3634] do_syscall_64+0x112/0x360 [ 47.990378][ T3634] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 47.990398][ T3634] [ 47.990402][ T3634] read to 0xffff8881073537b0 of 8 bytes by task 3634 on cpu 1: [ 47.990419][ T3634] step_into_slowpath+0x12c/0x4c0 [ 47.990446][ T3634] path_lookupat+0x2eb/0x4c0 [ 47.990468][ T3634] filename_lookup+0x18f/0x390 [