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================================================================== BUG: KCSAN: data-race in __dentry_kill / step_into read-write to 0xffff8881065aed80 of 4 bytes by task 26711 on cpu 1: dentry_unlist fs/dcache.c:605 [inline] __dentry_kill+0x230/0x4b0 fs/dcache.c:674 dput+0x5e/0xd0 fs/dcache.c:902 __fput+0x444/0x650 fs/file_table.c:473 fput_close_sync+0x6e/0x120 fs/file_table.c:570 __do_sys_close fs/open.c:1581 [inline] __se_sys_close fs/open.c:1566 [inline] __x64_sys_close+0x56/0xf0 fs/open.c:1566 x64_sys_call+0x2747/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:4 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff8881065aed80 of 4 bytes by task 26581 on cpu 0: __d_entry_type include/linux/dcache.h:409 [inline] d_is_symlink include/linux/dcache.h:439 [inline] step_into+0x12f/0x820 fs/namei.c:1981 open_last_lookups fs/namei.c:3827 [inline] path_openat+0x13e8/0x2170 fs/namei.c:4036 do_filp_open+0x109/0x230 fs/namei.c:4066 do_sys_openat2+0xa6/0x110 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0xf2/0x120 fs/open.c:1455 x64_sys_call+0x1af/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:258 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x00200008 -> 0x00004008 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 26581 Comm: syz-executor Not tainted 6.15.0-rc4-syzkaller-00291-g2a239ffbebb5 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 ================================================================== ================================================================== BUG: KCSAN: data-race in __dentry_kill / fast_dput write to 0xffff88810044ecd0 of 8 bytes by task 26711 on cpu 0: __d_drop fs/dcache.c:566 [inline] __dentry_kill+0x142/0x4b0 fs/dcache.c:658 dput+0x5e/0xd0 fs/dcache.c:902 do_unlinkat+0x299/0x4c0 fs/namei.c:4646 __do_sys_unlink fs/namei.c:4689 [inline] __se_sys_unlink fs/namei.c:4687 [inline] __x64_sys_unlink+0x2e/0x40 fs/namei.c:4687 x64_sys_call+0x22a6/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:88 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff88810044ecd0 of 8 bytes by task 26581 on cpu 1: hlist_bl_unhashed include/linux/list_bl.h:54 [inline] d_unhashed include/linux/dcache.h:359 [inline] retain_dentry fs/dcache.c:743 [inline] fast_dput+0x5f/0x2c0 fs/dcache.c:839 dput+0x24/0xd0 fs/dcache.c:896 __fput+0x444/0x650 fs/file_table.c:473 fput_close_sync+0x6e/0x120 fs/file_table.c:570 __do_sys_close fs/open.c:1581 [inline] __se_sys_close fs/open.c:1566 [inline] __x64_sys_close+0x56/0xf0 fs/open.c:1566 x64_sys_call+0x2747/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:4 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0xffff888237bafdb8 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 26581 Comm: syz-executor Not tainted 6.15.0-rc4-syzkaller-00291-g2a239ffbebb5 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 ================================================================== ================================================================== BUG: KCSAN: data-race in __dentry_kill / step_into read-write to 0xffff88810044f840 of 4 bytes by task 26711 on cpu 1: dentry_unlist fs/dcache.c:605 [inline] __dentry_kill+0x230/0x4b0 fs/dcache.c:674 dput+0x5e/0xd0 fs/dcache.c:902 do_unlinkat+0x299/0x4c0 fs/namei.c:4646 __do_sys_unlink fs/namei.c:4689 [inline] __se_sys_unlink fs/namei.c:4687 [inline] __x64_sys_unlink+0x2e/0x40 fs/namei.c:4687 x64_sys_call+0x22a6/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:88 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff88810044f840 of 4 bytes by task 26581 on cpu 0: __d_entry_type include/linux/dcache.h:409 [inline] d_is_symlink include/linux/dcache.h:439 [inline] step_into+0x12f/0x820 fs/namei.c:1981 open_last_lookups fs/namei.c:3827 [inline] path_openat+0x13e8/0x2170 fs/namei.c:4036 do_filp_open+0x109/0x230 fs/namei.c:4066 do_sys_openat2+0xa6/0x110 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0xf2/0x120 fs/open.c:1455 x64_sys_call+0x1af/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:258 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x00200008 -> 0x00004008 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 26581 Comm: syz-executor Not tainted 6.15.0-rc4-syzkaller-00291-g2a239ffbebb5 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 ================================================================== ================================================================== BUG: KCSAN: data-race in __dentry_kill / lookup_fast read-write to 0xffff8881005c83c0 of 4 bytes by task 26711 on cpu 1: dentry_unlist fs/dcache.c:605 [inline] __dentry_kill+0x230/0x4b0 fs/dcache.c:674 dput+0x5e/0xd0 fs/dcache.c:902 __fput+0x444/0x650 fs/file_table.c:473 fput_close_sync+0x6e/0x120 fs/file_table.c:570 __do_sys_close fs/open.c:1581 [inline] __se_sys_close fs/open.c:1566 [inline] __x64_sys_close+0x56/0xf0 fs/open.c:1566 x64_sys_call+0x2747/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:4 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff8881005c83c0 of 4 bytes by task 26581 on cpu 0: d_revalidate fs/namei.c:928 [inline] lookup_fast+0xf0/0x320 fs/namei.c:1765 lookup_fast_for_open fs/namei.c:3738 [inline] open_last_lookups fs/namei.c:3771 [inline] path_openat+0x43c/0x2170 fs/namei.c:4036 do_filp_open+0x109/0x230 fs/namei.c:4066 do_sys_openat2+0xa6/0x110 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0xf2/0x120 fs/open.c:1455 x64_sys_call+0x1af/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:258 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x00200008 -> 0x00004008 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 26581 Comm: syz-executor Not tainted 6.15.0-rc4-syzkaller-00291-g2a239ffbebb5 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 ================================================================== ================================================================== BUG: KCSAN: data-race in __dentry_kill / fast_dput write to 0xffff8881066d1b50 of 8 bytes by task 26711 on cpu 1: __d_drop fs/dcache.c:566 [inline] __dentry_kill+0x142/0x4b0 fs/dcache.c:658 dput+0x5e/0xd0 fs/dcache.c:902 __fput+0x444/0x650 fs/file_table.c:473 fput_close_sync+0x6e/0x120 fs/file_table.c:570 __do_sys_close fs/open.c:1581 [inline] __se_sys_close fs/open.c:1566 [inline] __x64_sys_close+0x56/0xf0 fs/open.c:1566 x64_sys_call+0x2747/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:4 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff8881066d1b50 of 8 bytes by task 26581 on cpu 0: hlist_bl_unhashed include/linux/list_bl.h:54 [inline] d_unhashed include/linux/dcache.h:359 [inline] retain_dentry fs/dcache.c:743 [inline] fast_dput+0x5f/0x2c0 fs/dcache.c:839 dput+0x24/0xd0 fs/dcache.c:896 do_unlinkat+0x299/0x4c0 fs/namei.c:4646 __do_sys_unlink fs/namei.c:4689 [inline] __se_sys_unlink fs/namei.c:4687 [inline] __x64_sys_unlink+0x2e/0x40 fs/namei.c:4687 x64_sys_call+0x22a6/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:88 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0xffff888237bafdb8 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 26581 Comm: syz-executor Not tainted 6.15.0-rc4-syzkaller-00291-g2a239ffbebb5 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 ================================================================== ================================================================== BUG: KCSAN: data-race in __dentry_kill / step_into read-write to 0xffff888100457cc0 of 4 bytes by task 26711 on cpu 1: dentry_unlist fs/dcache.c:605 [inline] __dentry_kill+0x230/0x4b0 fs/dcache.c:674 dput+0x5e/0xd0 fs/dcache.c:902 __fput+0x444/0x650 fs/file_table.c:473 fput_close_sync+0x6e/0x120 fs/file_table.c:570 __do_sys_close fs/open.c:1581 [inline] __se_sys_close fs/open.c:1566 [inline] __x64_sys_close+0x56/0xf0 fs/open.c:1566 x64_sys_call+0x2747/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:4 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff888100457cc0 of 4 bytes by task 26581 on cpu 0: __follow_mount_rcu fs/namei.c:1572 [inline] handle_mounts fs/namei.c:1623 [inline] step_into+0xe3/0x820 fs/namei.c:1976 open_last_lookups fs/namei.c:3827 [inline] path_openat+0x13e8/0x2170 fs/namei.c:4036 do_filp_open+0x109/0x230 fs/namei.c:4066 do_sys_openat2+0xa6/0x110 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0xf2/0x120 fs/open.c:1455 x64_sys_call+0x1af/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:258 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x00200008 -> 0x00004008 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 26581 Comm: syz-executor Not tainted 6.15.0-rc4-syzkaller-00291-g2a239ffbebb5 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 ================================================================== ================================================================== BUG: KCSAN: data-race in __dentry_kill / step_into read-write to 0xffff888106661c00 of 4 bytes by task 26711 on cpu 0: dentry_unlist fs/dcache.c:605 [inline] __dentry_kill+0x230/0x4b0 fs/dcache.c:674 dput+0x5e/0xd0 fs/dcache.c:902 __fput+0x444/0x650 fs/file_table.c:473 fput_close_sync+0x6e/0x120 fs/file_table.c:570 __do_sys_close fs/open.c:1581 [inline] __se_sys_close fs/open.c:1566 [inline] __x64_sys_close+0x56/0xf0 fs/open.c:1566 x64_sys_call+0x2747/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:4 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff888106661c00 of 4 bytes by task 26581 on cpu 1: __d_entry_type include/linux/dcache.h:409 [inline] d_is_symlink include/linux/dcache.h:439 [inline] step_into+0x12f/0x820 fs/namei.c:1981 open_last_lookups fs/namei.c:3827 [inline] path_openat+0x13e8/0x2170 fs/namei.c:4036 do_filp_open+0x109/0x230 fs/namei.c:4066 do_sys_openat2+0xa6/0x110 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0xf2/0x120 fs/open.c:1455 x64_sys_call+0x1af/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:258 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x00200008 -> 0x00004008 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 26581 Comm: syz-executor Not tainted 6.15.0-rc4-syzkaller-00291-g2a239ffbebb5 #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 ================================================================== ================================================================== BUG: KCSAN: data-race in dentry_unlink_inode / step_into write to 0xffff8881065e49f0 of 8 bytes by task 26711 on cpu 1: __d_clear_type_and_inode fs/dcache.c:410 [inline] dentry_unlink_inode+0x65/0x260 fs/dcache.c:447 __dentry_kill+0x18d/0x4b0 fs/dcache.c:660 dput+0x5e/0xd0 fs/dcache.c:902 __fput+0x444/0x650 fs/file_table.c:473 fput_close_sync+0x6e/0x120 fs/file_table.c:570 __do_sys_close fs/open.c:1581 [inline] __se_sys_close fs/open.c:1566 [inline] __x64_sys_close+0x56/0xf0 fs/open.c:1566 x64_sys_call+0x2747/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:4 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff8881065e49f0 of 8 bytes by task 26581 on cpu 0: step_into+0x122/0x820 fs/namei.c:1980 open_last_lookups fs/namei.c:3827 [inline] path_openat+0x13e8/0x2170 fs/namei.c:4036 do_filp_open+0x109/0x230 fs/namei.c:4066 do_sys_openat2+0xa6/0x110 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __x64_sys_openat+0xf2/0x120 fs/open.c:1455
| Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/05/03 22:29 | upstream | 2a239ffbebb5 | b0714e37 | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in __dentry_kill / step_into |