syzbot

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BUG: KCSAN: data-race in inode_doinit_with_dentry / inode_doinit_with_dentry

write to 0xffff88812632ba7a of 1 bytes by task 4634 on cpu 1:
 inode_doinit_with_dentry+0x285/0x7a0 security/selinux/hooks.c:1459
 __inode_security_revalidate security/selinux/hooks.c:298 [inline]
 inode_security security/selinux/hooks.c:332 [inline]
 selinux_file_open+0xe4/0x330 security/selinux/hooks.c:4145
 security_file_open+0x36/0x70 security/security.c:2636
 do_dentry_open+0x216/0xa60 fs/open.c:939
 vfs_open+0x37/0x1e0 fs/open.c:1094
 dentry_open+0x4a/0x90 fs/open.c:1117
 pidfs_alloc_file+0xe2/0x180 fs/pidfs.c:1079
 pidfd_prepare+0x11d/0x170 kernel/fork.c:1900
 pidfd_create kernel/pid.c:625 [inline]
 __do_sys_pidfd_open kernel/pid.c:661 [inline]
 __se_sys_pidfd_open+0x133/0x270 kernel/pid.c:646
 __x64_sys_pidfd_open+0x31/0x40 kernel/pid.c:646
 x64_sys_call+0x57c/0x3000 arch/x86/include/generated/asm/syscalls_64.h:435
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xca/0x2b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffff88812632ba7a of 1 bytes by task 4632 on cpu 0:
 inode_doinit_with_dentry+0x74/0x7a0 security/selinux/hooks.c:1434
 __inode_security_revalidate security/selinux/hooks.c:298 [inline]
 inode_security security/selinux/hooks.c:332 [inline]
 selinux_file_open+0xe4/0x330 security/selinux/hooks.c:4145
 security_file_open+0x36/0x70 security/security.c:2636
 do_dentry_open+0x216/0xa60 fs/open.c:939
 vfs_open+0x37/0x1e0 fs/open.c:1094
 dentry_open+0x4a/0x90 fs/open.c:1117
 pidfs_alloc_file+0xe2/0x180 fs/pidfs.c:1079
 pidfd_prepare+0x11d/0x170 kernel/fork.c:1900
 pidfd_create kernel/pid.c:625 [inline]
 __do_sys_pidfd_open kernel/pid.c:661 [inline]
 __se_sys_pidfd_open+0x133/0x270 kernel/pid.c:646
 __x64_sys_pidfd_open+0x31/0x40 kernel/pid.c:646
 x64_sys_call+0x57c/0x3000 arch/x86/include/generated/asm/syscalls_64.h:435
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xca/0x2b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00 -> 0x01

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 4632 Comm: syz.7.319 Not tainted syzkaller #0 PREEMPT(voluntary) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
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