Warning: Permanently added '10.128.0.255' (ED25519) to the list of known hosts. [*] Starting KCSAN data-race reproducer... [ 49.802372][ T3655] ================================================================== [ 49.802409][ T3655] BUG: KCSAN: data-race in mas_wmb_replace / mtree_range_walk [ 49.802457][ T3655] [ 49.802467][ T3655] write to 0xffff888107756600 of 8 bytes by task 3639 on cpu 0: [ 49.802484][ T3655] mas_wmb_replace+0x242/0x1870 [ 49.802511][ T3655] mas_wr_store_entry+0x54d7/0x5ac0 [ 49.802533][ T3655] mas_store_prealloc+0x421/0x670 [ 49.802554][ T3655] vma_complete+0x3b7/0x830 [+] Workers created successfully. [ 49.802576][ T3655] __split_vma+0x6be/0x720 [ 49.802602][ T3655] vma_modify+0xc98/0xd50 [ 49.802625][ T3655] vma_modify_flags+0x1be/0x250 [ 49.802648][ T3655] mprotect_fixup+0x382/0x660 [ 49.802673][ T3655] do_mprotect_pkey+0x69f/0x950 [ 49.802701][ T3655] __x64_sys_mprotect+0x48/0x60 [ 49.802726][ T3655] x64_sys_call+0xd54/0x2550 [ 49.802752][ T3655] do_syscall_64+0x112/0x360 [ 49.802773][ T3655] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 49.802794][ T3655] [ 49.802800][ T3655] read to 0xffff888107756600 of 8 bytes by task 3655 on cpu 1: [ 49.802815][ T3655] mtree_range_walk+0x35a/0x480 [ 49.802841][ T3655] mas_walk+0x1ac/0x340 [ 49.802859][ T3655] lock_vma_under_rcu+0xc9/0x210 [ 49.802889][ T3655] do_user_addr_fault+0x239/0x1060 [ 49.802923][ T3655] exc_page_fault+0x62/0xa0 [ 49.802954][ T3655] asm_exc_page_fault+0x26/0x30 [ 49.802974][ T3655] [ 49.802978][ T3655] value changed: 0xffff8881044cd141 -> 0xffff888107756600 [ 49.802991][ T3655] [ 49.802994][ T3655] Reported by Kernel Concurrency Sanitizer on: [ 49.803020][ T3655] CPU: 1 UID: 0 PID: 3655 Comm: syz-executor310 Not tainted syzkaller #0 PREEMPT(lazy) [ 49.803049][ T3655] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 49.803062][ T3655] ================================================================== [ 51.907984][ T3779] ================================================================== [ 51.908035][ T3779] BUG: KCSAN: data-race in futex_hash_allocate_default / release_task [ 51.908094][ T3779] [ 51.908101][ T3779] read-write to 0xffff88810471ed08 of 4 bytes by task 19546 on cpu 1: [ 51.908117][ T3779] release_task+0x639/0xb90 [ 51.908152][ T3779] do_exit+0xd79/0x1510 [ 51.908189][ T3779] __x64_sys_exit+0x1f/0x20 [ 51.908226][ T3779] x64_sys_call+0x254a/0x2550 [ 51.908260][ T3779] do_syscall_64+0x112/0x360 [ 51.908282][ T3779] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 51.908313][ T3779] [ 51.908321][ T3779] read to 0xffff88810471ed08 of 4 bytes by task 3779 on cpu 0: [ 51.908343][ T3779] futex_hash_allocate_default+0x5b/0x170 [ 51.908382][ T3779] copy_process+0x18d5/0x2360 [ 51.908407][ T3779] kernel_clone+0x1c0/0x5f0 [ 51.908430][ T3779] __se_sys_clone3+0x1f5/0x230 [ 51.908464][ T3779] __x64_sys_clone3+0x31/0x40 [ 51.908499][ T3779] x64_sys_call+0x437/0x2550 [ 51.908532][ T3779] do_syscall_64+0x112/0x360 [ 51.908559][ T3779] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 51.908586][ T3779] [ 51.908591][ T3779] value changed: 0x00000016 -> 0x00000015 [ 51.908602][ T3779] [ 51.908605][ T3779] Reported by Kernel Concurrency Sanitizer on: [ 51.908616][ T3779] CPU: 0 UID: 0 PID: 3779 Comm: syz-executor310 Not tainted syzkaller #0 PREEMPT(lazy) [ 51.908640][ T3779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 51.908652][ T3779] ================================================================== [ 52.925554][ T3641] ================================================================== [ 52.925602][ T3641] BUG: KCSAN: data-race in copy_process / futex_hash_allocate_default [ 52.925652][ T3641] [ 52.925658][ T3641] read-write to 0xffff88810471ed08 of 4 bytes by task 3640 on cpu 0: [ 52.925677][ T3641] copy_process+0x1d98/0x2360 [ 52.925706][ T3641] kernel_clone+0x1c0/0x5f0 [ 52.925737][ T3641] __se_sys_clone3+0x1f5/0x230 [ 52.925767][ T3641] __x64_sys_clone3+0x31/0x40 [ 52.925799][ T3641] x64_sys_call+0x437/0x2550 [ 52.925834][ T3641] do_syscall_64+0x112/0x360 [ 52.925862][ T3641] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 52.925890][ T3641] [ 52.925898][ T3641] read to 0xffff88810471ed08 of 4 bytes by task 3641 on cpu 1: [ 52.925918][ T3641] futex_hash_allocate_default+0x5b/0x170 [ 52.925956][ T3641] copy_process+0x18d5/0x2360 [ 52.925983][ T3641] kernel_clone+0x1c0/0x5f0 [ 52.926015][ T3641] __se_sys_clone3+0x1f5/0x230 [ 52.926050][ T3641] __x64_sys_clone3+0x31/0x40 [ 52.926083][ T3641] x64_sys_call+0x437/0x2550 [ 52.926115][ T3641] do_syscall_64+0x112/0x360 [ 52.926134][ T3641] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 52.926162][ T3641] [ 52.926167][ T3641] value changed: 0x00000011 -> 0x00000012 [ 52.926181][ T3641] [ 52.926186][ T3641] Reported by Kernel Concurrency Sanitizer on: [ 52.926210][ T3641] CPU: 1 UID: 0 PID: 3641 Comm: syz-executor310 Not tainted syzkaller #0 PREEMPT(lazy) [ 52.926244][ T3641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 52.926261][ T3641] ================================================================== [ 53.485728][ T29] audit: type=1400 audit(1790978080.865:184): avc: denied { write } for pid=24715 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 53.563554][ T29] audit: type=1400 audit(1790978080.945:185): avc: denied { write } for pid=30434 comm="rm" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 55.202496][ T29] audit: type=1400 audit(1790978082.585:186): avc: denied { write } for pid=31277 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 55.293125][ T29] audit: type=1400 audit(1790978082.675:187): avc: denied { write } for pid=11672 comm="rm" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 57.009108][ T29] audit: type=1400 audit(1790978084.385:188): avc: denied { write } for pid=13615 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 57.501273][ T29] audit: type=1400 audit(1790978084.885:189): avc: denied { write } for pid=27320 comm="rm" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 57.590874][ T3755] ================================================================== [ 57.590926][ T3755] BUG: KCSAN: data-race in futex_hash_allocate_default / release_task [ 57.590974][ T3755] [ 57.590980][ T3755] read-write to 0xffff88810471ed08 of 4 bytes by task 29300 on cpu 1: [ 57.590998][ T3755] release_task+0x639/0xb90 [ 57.591025][ T3755] do_exit+0xd79/0x1510 [ 57.591050][ T3755] __x64_sys_exit+0x1f/0x20 [ 57.591080][ T3755] x64_sys_call+0x254a/0x2550 [ 57.591114][ T3755] do_syscall_64+0x112/0x360 [ 57.591142][ T3755] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 57.591169][ T3755] [ 57.591177][ T3755] read to 0xffff88810471ed08 of 4 bytes by task 3755 on cpu 0: [ 57.591200][ T3755] futex_hash_allocate_default+0x5b/0x170 [ 57.591240][ T3755] copy_process+0x18d5/0x2360 [ 57.591269][ T3755] kernel_clone+0x1c0/0x5f0 [ 57.591296][ T3755] __se_sys_clone3+0x1f5/0x230 [ 57.591327][ T3755] __x64_sys_clone3+0x31/0x40 [ 57.591360][ T3755] x64_sys_call+0x437/0x2550 [ 57.591395][ T3755] do_syscall_64+0x112/0x360 [ 57.591422][ T3755] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 57.591450][ T3755] [ 57.591455][ T3755] value changed: 0x00000012 -> 0x00000011 [ 57.591469][ T3755] [ 57.591472][ T3755] Reported by Kernel Concurrency Sanitizer on: [ 57.591489][ T3755] CPU: 0 UID: 0 PID: 3755 Comm: syz-executor310 Not tainted syzkaller #0 PREEMPT(lazy) [ 57.591513][ T3755] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 57.591529][ T3755] ================================================================== [ 57.874211][ T3660] ================================================================== [ 57.874257][ T3660] BUG: KCSAN: data-race in copy_process / futex_hash_allocate_default [ 57.874308][ T3660] [ 57.874317][ T3660] read-write to 0xffff88810471ed08 of 4 bytes by task 3645 on cpu 1: [ 57.874344][ T3660] copy_process+0x1d98/0x2360 [ 57.874367][ T3660] kernel_clone+0x1c0/0x5f0 [ 57.874397][ T3660] __se_sys_clone3+0x1f5/0x230 [ 57.874430][ T3660] __x64_sys_clone3+0x31/0x40 [ 57.874459][ T3660] x64_sys_call+0x437/0x2550 [ 57.874483][ T3660] do_syscall_64+0x112/0x360 [ 57.874502][ T3660] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 57.874527][ T3660] [ 57.874534][ T3660] read to 0xffff88810471ed08 of 4 bytes by task 3660 on cpu 0: [ 57.874555][ T3660] futex_hash_allocate_default+0x5b/0x170 [ 57.874586][ T3660] copy_process+0x18d5/0x2360 [ 57.874606][ T3660] kernel_clone+0x1c0/0x5f0 [ 57.874638][ T3660] __se_sys_clone3+0x1f5/0x230 [ 57.874672][ T3660] __x64_sys_clone3+0x31/0x40 [ 57.874705][ T3660] x64_sys_call+0x437/0x2550 [ 57.874738][ T3660] do_syscall_64+0x112/0x360 [ 57.874759][ T3660] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 57.874778][ T3660] [ 57.874782][ T3660] value changed: 0x00000011 -> 0x00000012 [ 57.874792][ T3660] [ 57.874796][ T3660] Reported by Kernel Concurrency Sanitizer on: [ 57.874806][ T3660] CPU: 0 UID: 0 PID: 3660 Comm: syz-executor310 Not tainted syzkaller #0 PREEMPT(lazy) [ 57.874833][ T3660] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 57.874850][ T3660] ================================================================== [ 59.024264][ T29] audit: type=1400 audit(1790978086.405:190): avc: denied { write } for pid=30246 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 59.097943][ T29] audit: type=1400 audit(1790978086.475:191): avc: denied { write } for pid=5994 comm="rm" name="hook-state" dev="tmpfs" ino=486 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1