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

read-write to 0xffff88813b50ccc0 of 4 bytes by task 3541 on cpu 0:
 dentry_unlist fs/dcache.c:547 [inline]
 __dentry_kill+0x18f/0x4a0 fs/dcache.c:603
 dentry_kill+0x8d/0x1e0
 dput+0x118/0x1f0 fs/dcache.c:913
 do_unlinkat+0x257/0x4c0 fs/namei.c:4385
 __do_sys_unlink fs/namei.c:4430 [inline]
 __se_sys_unlink fs/namei.c:4428 [inline]
 __x64_sys_unlink+0x30/0x40 fs/namei.c:4428
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

read to 0xffff88813b50ccc0 of 4 bytes by task 2780 on cpu 1:
 __d_entry_type include/linux/dcache.h:386 [inline]
 d_is_symlink include/linux/dcache.h:416 [inline]
 step_into+0x12f/0x800 fs/namei.c:1845
 walk_component+0x164/0x230 fs/namei.c:2008
 lookup_last fs/namei.c:2459 [inline]
 path_lookupat+0x10a/0x2a0 fs/namei.c:2483
 filename_lookup+0x126/0x300 fs/namei.c:2512
 user_path_at_empty+0x42/0x110 fs/namei.c:2911
 do_readlinkat+0x92/0x210 fs/stat.c:490
 __do_sys_readlink fs/stat.c:523 [inline]
 __se_sys_readlink fs/stat.c:520 [inline]
 __x64_sys_readlink+0x47/0x50 fs/stat.c:520
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x44/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b

value changed: 0x00600008 -> 0x00008008

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 2780 Comm: udevd Not tainted 6.7.0-rc2-syzkaller-00147-gf1a09972a45a #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
==================================================================
 loop2: unable to read partition table
loop2: partition table beyond EOD, truncated
 loop3: unable to read partition table
loop3: partition table beyond EOD, truncated
Alternate GPT is invalid, using primary GPT.
 loop2: p2 p3 p7
I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
buffer_io_error: 22 callbacks suppressed
Buffer I/O error on dev loop3, logical block 0, async page read
 loop3: unable to read partition table
loop3: partition table beyond EOD, truncated
Alternate GPT is invalid, using primary GPT.
 loop2: p2 p3 p7
I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
Buffer I/O error on dev loop3, logical block 0, async page read
 loop3: unable to read partition table
loop3: partition table beyond EOD, truncated
 loop3: unable to read partition table
loop3: partition table beyond EOD, truncated
I/O error, dev loop3, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2
 loop3: unable to read partition table
loop3: partition table beyond EOD, truncated
Alternate GPT is invalid, using primary GPT.
 loop0: p2 p3 p7