==================================================================
BUG: KCSAN: data-race in __dentry_kill / lookup_fast

read-write to 0xffff888106a476c0 of 4 bytes by task 3300 on cpu 1:
 dentry_unlist fs/dcache.c:588 [inline]
 __dentry_kill+0x22e/0x4c0 fs/dcache.c:657
 dput+0x5c/0xd0 fs/dcache.c:885
 __fput+0x428/0x640 fs/file_table.c:472
 __fput_sync+0x96/0xc0 fs/file_table.c:550
 __do_sys_close fs/open.c:1580 [inline]
 __se_sys_close fs/open.c:1565 [inline]
 __x64_sys_close+0x55/0xe0 fs/open.c:1565
 x64_sys_call+0x266c/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:4
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff888106a476c0 of 4 bytes by task 10243 on cpu 0:
 d_revalidate fs/namei.c:927 [inline]
 lookup_fast+0xe9/0x320 fs/namei.c:1741
 lookup_fast_for_open fs/namei.c:3688 [inline]
 open_last_lookups fs/namei.c:3721 [inline]
 path_openat+0x41e/0x1fc0 fs/namei.c:3986
 do_filp_open+0x107/0x230 fs/namei.c:4016
 do_sys_openat2+0xab/0x120 fs/open.c:1428
 do_sys_open fs/open.c:1443 [inline]
 __do_sys_openat fs/open.c:1459 [inline]
 __se_sys_openat fs/open.c:1454 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1454
 x64_sys_call+0x2b30/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00400008 -> 0x00008008

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 10243 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller-00278-gece144f151ac #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
==================================================================
==================================================================
BUG: KCSAN: data-race in __dentry_kill / lookup_fast

read-write to 0xffff888136d63900 of 4 bytes by task 3300 on cpu 1:
 dentry_unlist fs/dcache.c:588 [inline]
 __dentry_kill+0x22e/0x4c0 fs/dcache.c:657
 dput+0x5c/0xd0 fs/dcache.c:885
 __fput+0x428/0x640 fs/file_table.c:472
 __fput_sync+0x96/0xc0 fs/file_table.c:550
 __do_sys_close fs/open.c:1580 [inline]
 __se_sys_close fs/open.c:1565 [inline]
 __x64_sys_close+0x55/0xe0 fs/open.c:1565
 x64_sys_call+0x266c/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:4
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff888136d63900 of 4 bytes by task 10243 on cpu 0:
 d_revalidate fs/namei.c:927 [inline]
 lookup_fast+0xe9/0x320 fs/namei.c:1741
 lookup_fast_for_open fs/namei.c:3688 [inline]
 open_last_lookups fs/namei.c:3721 [inline]
 path_openat+0x41e/0x1fc0 fs/namei.c:3986
 do_filp_open+0x107/0x230 fs/namei.c:4016
 do_sys_openat2+0xab/0x120 fs/open.c:1428
 do_sys_open fs/open.c:1443 [inline]
 __do_sys_openat fs/open.c:1459 [inline]
 __se_sys_openat fs/open.c:1454 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1454
 x64_sys_call+0x2b30/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00400008 -> 0x00008008

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 10243 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller-00278-gece144f151ac #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
==================================================================
==================================================================
BUG: KCSAN: data-race in __dentry_kill / step_into

read-write to 0xffff888136d913c0 of 4 bytes by task 3300 on cpu 1:
 dentry_unlist fs/dcache.c:588 [inline]
 __dentry_kill+0x22e/0x4c0 fs/dcache.c:657
 dput+0x5c/0xd0 fs/dcache.c:885
 __fput+0x428/0x640 fs/file_table.c:472
 __fput_sync+0x96/0xc0 fs/file_table.c:550
 __do_sys_close fs/open.c:1580 [inline]
 __se_sys_close fs/open.c:1565 [inline]
 __x64_sys_close+0x55/0xe0 fs/open.c:1565
 x64_sys_call+0x266c/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:4
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff888136d913c0 of 4 bytes by task 10243 on cpu 0:
 __d_entry_type include/linux/dcache.h:416 [inline]
 d_is_symlink include/linux/dcache.h:446 [inline]
 step_into+0x129/0x820 fs/namei.c:1957
 open_last_lookups fs/namei.c:3777 [inline]
 path_openat+0x13e5/0x1fc0 fs/namei.c:3986
 do_filp_open+0x107/0x230 fs/namei.c:4016
 do_sys_openat2+0xab/0x120 fs/open.c:1428
 do_sys_open fs/open.c:1443 [inline]
 __do_sys_openat fs/open.c:1459 [inline]
 __se_sys_openat fs/open.c:1454 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1454
 x64_sys_call+0x2b30/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00400008 -> 0x00008008

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 10243 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller-00278-gece144f151ac #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
==================================================================
==================================================================
BUG: KCSAN: data-race in __dentry_kill / fast_dput

write to 0xffff8881046cd0d0 of 8 bytes by task 3300 on cpu 1:
 __d_drop fs/dcache.c:549 [inline]
 __dentry_kill+0x13e/0x4c0 fs/dcache.c:641
 dput+0x5c/0xd0 fs/dcache.c:885
 __fput+0x428/0x640 fs/file_table.c:472
 __fput_sync+0x96/0xc0 fs/file_table.c:550
 __do_sys_close fs/open.c:1580 [inline]
 __se_sys_close fs/open.c:1565 [inline]
 __x64_sys_close+0x55/0xe0 fs/open.c:1565
 x64_sys_call+0x266c/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:4
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff8881046cd0d0 of 8 bytes by task 10243 on cpu 0:
 hlist_bl_unhashed include/linux/list_bl.h:54 [inline]
 d_unhashed include/linux/dcache.h:366 [inline]
 retain_dentry fs/dcache.c:726 [inline]
 fast_dput+0x65/0x2c0 fs/dcache.c:822
 dput+0x24/0xd0 fs/dcache.c:879
 __fput+0x428/0x640 fs/file_table.c:472
 __fput_sync+0x96/0xc0 fs/file_table.c:550
 __do_sys_close fs/open.c:1580 [inline]
 __se_sys_close fs/open.c:1565 [inline]
 __x64_sys_close+0x55/0xe0 fs/open.c:1565
 x64_sys_call+0x266c/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:4
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0xffff888237671758 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 10243 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller-00278-gece144f151ac #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
==================================================================
==================================================================
BUG: KCSAN: data-race in __dentry_kill / step_into

read-write to 0xffff888136c2aa80 of 4 bytes by task 3300 on cpu 1:
 dentry_unlist fs/dcache.c:588 [inline]
 __dentry_kill+0x22e/0x4c0 fs/dcache.c:657
 dput+0x5c/0xd0 fs/dcache.c:885
 __fput+0x428/0x640 fs/file_table.c:472
 __fput_sync+0x96/0xc0 fs/file_table.c:550
 __do_sys_close fs/open.c:1580 [inline]
 __se_sys_close fs/open.c:1565 [inline]
 __x64_sys_close+0x55/0xe0 fs/open.c:1565
 x64_sys_call+0x266c/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:4
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff888136c2aa80 of 4 bytes by task 10243 on cpu 0:
 __follow_mount_rcu fs/namei.c:1571 [inline]
 handle_mounts fs/namei.c:1622 [inline]
 step_into+0xe3/0x820 fs/namei.c:1952
 open_last_lookups fs/namei.c:3777 [inline]
 path_openat+0x13e5/0x1fc0 fs/namei.c:3986
 do_filp_open+0x107/0x230 fs/namei.c:4016
 do_sys_openat2+0xab/0x120 fs/open.c:1428
 do_sys_open fs/open.c:1443 [inline]
 __do_sys_openat fs/open.c:1459 [inline]
 __se_sys_openat fs/open.c:1454 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1454
 x64_sys_call+0x2b30/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00400008 -> 0x00008008

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 10243 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller-00278-gece144f151ac #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
==================================================================
==================================================================
BUG: KCSAN: data-race in __dentry_kill / lookup_fast

read-write to 0xffff888136e6dc00 of 4 bytes by task 3300 on cpu 1:
 dentry_unlist fs/dcache.c:588 [inline]
 __dentry_kill+0x22e/0x4c0 fs/dcache.c:657
 dput+0x5c/0xd0 fs/dcache.c:885
 __fput+0x428/0x640 fs/file_table.c:472
 __fput_sync+0x96/0xc0 fs/file_table.c:550
 __do_sys_close fs/open.c:1580 [inline]
 __se_sys_close fs/open.c:1565 [inline]
 __x64_sys_close+0x55/0xe0 fs/open.c:1565
 x64_sys_call+0x266c/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:4
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff888136e6dc00 of 4 bytes by task 10243 on cpu 0:
 d_revalidate fs/namei.c:927 [inline]
 lookup_fast+0xe9/0x320 fs/namei.c:1741
 lookup_fast_for_open fs/namei.c:3688 [inline]
 open_last_lookups fs/namei.c:3721 [inline]
 path_openat+0x41e/0x1fc0 fs/namei.c:3986
 do_filp_open+0x107/0x230 fs/namei.c:4016
 do_sys_openat2+0xab/0x120 fs/open.c:1428
 do_sys_open fs/open.c:1443 [inline]
 __do_sys_openat fs/open.c:1459 [inline]
 __se_sys_openat fs/open.c:1454 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1454
 x64_sys_call+0x2b30/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00400008 -> 0x00008008

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 10243 Comm: syz-executor Not tainted 6.14.0-rc4-syzkaller-00278-gece144f151ac #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
==================================================================