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

write to 0xffff88811aab9b50 of 8 bytes by task 3297 on cpu 1:
 __d_drop fs/dcache.c:531 [inline]
 __dentry_kill+0x13e/0x4c0 fs/dcache.c:623
 dput+0x5c/0xd0 fs/dcache.c:867
 do_unlinkat+0x258/0x4d0 fs/namei.c:4590
 __do_sys_unlink fs/namei.c:4635 [inline]
 __se_sys_unlink fs/namei.c:4633 [inline]
 __x64_sys_unlink+0x2e/0x40 fs/namei.c:4633
 x64_sys_call+0x2329/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:88
 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 0xffff88811aab9b50 of 8 bytes by task 3303 on cpu 0:
 hlist_bl_unhashed include/linux/list_bl.h:54 [inline]
 d_unhashed include/linux/dcache.h:354 [inline]
 retain_dentry fs/dcache.c:708 [inline]
 fast_dput+0x65/0x2c0 fs/dcache.c:804
 dput+0x24/0xd0 fs/dcache.c:861
 __fput+0x3fb/0x6d0 fs/file_table.c:458
 __fput_sync+0x96/0xc0 fs/file_table.c:535
 __do_sys_close fs/open.c:1554 [inline]
 __se_sys_close+0x109/0x1b0 fs/open.c:1539
 __x64_sys_close+0x1f/0x30 fs/open.c:1539
 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: 0xffff8882374d6488 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 3303 Comm: syz-executor Not tainted 6.13.0-rc7-syzkaller-00191-gfda5e3f28400 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
==================================================================
==================================================================
BUG: KCSAN: data-race in __dentry_kill / fast_dput

write to 0xffff8881069da910 of 8 bytes by task 3297 on cpu 1:
 __d_drop fs/dcache.c:531 [inline]
 __dentry_kill+0x13e/0x4c0 fs/dcache.c:623
 dput+0x5c/0xd0 fs/dcache.c:867
 do_unlinkat+0x258/0x4d0 fs/namei.c:4590
 __do_sys_unlink fs/namei.c:4635 [inline]
 __se_sys_unlink fs/namei.c:4633 [inline]
 __x64_sys_unlink+0x2e/0x40 fs/namei.c:4633
 x64_sys_call+0x2329/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:88
 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 0xffff8881069da910 of 8 bytes by task 3303 on cpu 0:
 hlist_bl_unhashed include/linux/list_bl.h:54 [inline]
 d_unhashed include/linux/dcache.h:354 [inline]
 retain_dentry fs/dcache.c:708 [inline]
 fast_dput+0x65/0x2c0 fs/dcache.c:804
 dput+0x24/0xd0 fs/dcache.c:861
 __fput+0x3fb/0x6d0 fs/file_table.c:458
 __fput_sync+0x96/0xc0 fs/file_table.c:535
 __do_sys_close fs/open.c:1554 [inline]
 __se_sys_close+0x109/0x1b0 fs/open.c:1539
 __x64_sys_close+0x1f/0x30 fs/open.c:1539
 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: 0xffff8882374d6488 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 3303 Comm: syz-executor Not tainted 6.13.0-rc7-syzkaller-00191-gfda5e3f28400 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
==================================================================
==================================================================
BUG: KCSAN: data-race in __dentry_kill / step_into

read-write to 0xffff888106946480 of 4 bytes by task 3297 on cpu 0:
 dentry_unlist fs/dcache.c:570 [inline]
 __dentry_kill+0x22e/0x4c0 fs/dcache.c:639
 dput+0x5c/0xd0 fs/dcache.c:867
 __fput+0x3fb/0x6d0 fs/file_table.c:458
 __fput_sync+0x96/0xc0 fs/file_table.c:535
 __do_sys_close fs/open.c:1554 [inline]
 __se_sys_close+0x109/0x1b0 fs/open.c:1539
 __x64_sys_close+0x1f/0x30 fs/open.c:1539
 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 0xffff888106946480 of 4 bytes by task 3303 on cpu 1:
 __d_entry_type include/linux/dcache.h:404 [inline]
 d_is_symlink include/linux/dcache.h:434 [inline]
 step_into+0x12f/0x840 fs/namei.c:1955
 open_last_lookups fs/namei.c:3775 [inline]
 path_openat+0x1234/0x1fa0 fs/namei.c:3984
 do_filp_open+0x107/0x230 fs/namei.c:4014
 do_sys_openat2+0xab/0x120 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1428
 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: 1 UID: 0 PID: 3303 Comm: syz-executor Not tainted 6.13.0-rc7-syzkaller-00191-gfda5e3f28400 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
==================================================================
==================================================================
BUG: KCSAN: data-race in __dentry_kill / lookup_fast

read-write to 0xffff888106a42cc0 of 4 bytes by task 3297 on cpu 0:
 dentry_unlist fs/dcache.c:570 [inline]
 __dentry_kill+0x22e/0x4c0 fs/dcache.c:639
 dput+0x5c/0xd0 fs/dcache.c:867
 __fput+0x3fb/0x6d0 fs/file_table.c:458
 __fput_sync+0x96/0xc0 fs/file_table.c:535
 __do_sys_close fs/open.c:1554 [inline]
 __se_sys_close+0x109/0x1b0 fs/open.c:1539
 __x64_sys_close+0x1f/0x30 fs/open.c:1539
 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 0xffff888106a42cc0 of 4 bytes by task 3303 on cpu 1:
 d_revalidate fs/namei.c:926 [inline]
 lookup_fast+0xd9/0x2a0 fs/namei.c:1740
 lookup_fast_for_open fs/namei.c:3686 [inline]
 open_last_lookups fs/namei.c:3719 [inline]
 path_openat+0x41e/0x1fa0 fs/namei.c:3984
 do_filp_open+0x107/0x230 fs/namei.c:4014
 do_sys_openat2+0xab/0x120 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1428
 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: 1 UID: 0 PID: 3303 Comm: syz-executor Not tainted 6.13.0-rc7-syzkaller-00191-gfda5e3f28400 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
==================================================================
==================================================================
BUG: KCSAN: data-race in __dentry_kill / fast_dput

write to 0xffff88811a823010 of 8 bytes by task 3297 on cpu 0:
 __d_drop fs/dcache.c:531 [inline]
 __dentry_kill+0x13e/0x4c0 fs/dcache.c:623
 dput+0x5c/0xd0 fs/dcache.c:867
 do_unlinkat+0x258/0x4d0 fs/namei.c:4590
 __do_sys_unlink fs/namei.c:4635 [inline]
 __se_sys_unlink fs/namei.c:4633 [inline]
 __x64_sys_unlink+0x2e/0x40 fs/namei.c:4633
 x64_sys_call+0x2329/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:88
 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 0xffff88811a823010 of 8 bytes by task 3303 on cpu 1:
 hlist_bl_unhashed include/linux/list_bl.h:54 [inline]
 d_unhashed include/linux/dcache.h:354 [inline]
 retain_dentry fs/dcache.c:708 [inline]
 fast_dput+0x65/0x2c0 fs/dcache.c:804
 dput+0x24/0xd0 fs/dcache.c:861
 __fput+0x3fb/0x6d0 fs/file_table.c:458
 __fput_sync+0x96/0xc0 fs/file_table.c:535
 __do_sys_close fs/open.c:1554 [inline]
 __se_sys_close+0x109/0x1b0 fs/open.c:1539
 __x64_sys_close+0x1f/0x30 fs/open.c:1539
 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: 0xffff8882374d6488 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 3303 Comm: syz-executor Not tainted 6.13.0-rc7-syzkaller-00191-gfda5e3f28400 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
==================================================================
==================================================================
BUG: KCSAN: data-race in __dentry_kill / step_into

read-write to 0xffff88810697bb40 of 4 bytes by task 3297 on cpu 0:
 dentry_unlist fs/dcache.c:570 [inline]
 __dentry_kill+0x22e/0x4c0 fs/dcache.c:639
 dput+0x5c/0xd0 fs/dcache.c:867
 __fput+0x3fb/0x6d0 fs/file_table.c:458
 __fput_sync+0x96/0xc0 fs/file_table.c:535
 __do_sys_close fs/open.c:1554 [inline]
 __se_sys_close+0x109/0x1b0 fs/open.c:1539
 __x64_sys_close+0x1f/0x30 fs/open.c:1539
 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 0xffff88810697bb40 of 4 bytes by task 3303 on cpu 1:
 __d_entry_type include/linux/dcache.h:404 [inline]
 d_is_symlink include/linux/dcache.h:434 [inline]
 step_into+0x12f/0x840 fs/namei.c:1955
 open_last_lookups fs/namei.c:3775 [inline]
 path_openat+0x1234/0x1fa0 fs/namei.c:3984
 do_filp_open+0x107/0x230 fs/namei.c:4014
 do_sys_openat2+0xab/0x120 fs/open.c:1402
 do_sys_open fs/open.c:1417 [inline]
 __do_sys_openat fs/open.c:1433 [inline]
 __se_sys_openat fs/open.c:1428 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1428
 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: 1 UID: 0 PID: 3303 Comm: syz-executor Not tainted 6.13.0-rc7-syzkaller-00191-gfda5e3f28400 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
==================================================================