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BUG: KCSAN: data-race in avc_policy_seqno / avc_ss_reset

write to 0xffffffff88e90c08 of 4 bytes by task 6546 on cpu 0:
 avc_latest_notif_update security/selinux/avc.c:582 [inline]
 avc_ss_reset+0x20c/0x240 security/selinux/avc.c:971
 selinux_notify_policy_change security/selinux/ss/services.c:2205 [inline]
 security_set_bools+0x301/0x340 security/selinux/ss/services.c:3140
 sel_commit_bools_write+0x1ea/0x270 security/selinux/selinuxfs.c:1332
 do_loop_readv_writev include/linux/uio.h:-1 [inline]
 vfs_writev+0x3ee/0x870 fs/read_write.c:1059
 do_writev+0xe7/0x210 fs/read_write.c:1103
 __do_sys_writev fs/read_write.c:1171 [inline]
 __se_sys_writev fs/read_write.c:1168 [inline]
 __x64_sys_writev+0x45/0x50 fs/read_write.c:1168
 x64_sys_call+0x2006/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:21
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

read to 0xffffffff88e90c08 of 4 bytes by task 6506 on cpu 1:
 avc_policy_seqno+0x15/0x30 security/selinux/avc.c:1207
 selinux_file_permission+0x1cd/0x320 security/selinux/hooks.c:3762
 security_file_permission+0x3e/0x80 security/security.c:2844
 rw_verify_area+0x8d/0x160 fs/read_write.c:473
 __io_read+0x3d7/0xc20 io_uring/rw.c:937
 io_read+0x1c/0x60 io_uring/rw.c:1020
 __io_issue_sqe+0xfe/0x2e0 io_uring/io_uring.c:1730
 io_issue_sqe+0x53/0x970 io_uring/io_uring.c:1753
 io_queue_sqe io_uring/io_uring.c:1960 [inline]
 io_req_task_submit+0x6b/0xc0 io_uring/io_uring.c:1375
 __io_run_local_work_loop io_uring/io_uring.c:1290 [inline]
 __io_run_local_work+0x185/0x4f0 io_uring/io_uring.c:1314
 io_run_local_work io_uring/io_uring.c:1356 [inline]
 io_cqring_wait io_uring/io_uring.c:2609 [inline]
 __do_sys_io_uring_enter io_uring/io_uring.c:3435 [inline]
 __se_sys_io_uring_enter+0x144b/0x1b70 io_uring/io_uring.c:3330
 __x64_sys_io_uring_enter+0x78/0x90 io_uring/io_uring.c:3330
 x64_sys_call+0x28c8/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:427
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00000009 -> 0x0000000a

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 6506 Comm: syz.3.678 Not tainted 6.15.0-syzkaller-03645-g3d413f0cfd7e #0 PREEMPT(voluntary) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
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