BUG: KCSAN: data-race in audit_log_start / audit_receive

write to 0xffffffff88bcd270 of 8 bytes by task 5758 on cpu 0:
 audit_ctl_unlock kernel/audit.c:243 [inline]
 audit_receive+0x28da/0x2a20 kernel/audit.c:1580
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x599/0x670 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x5cc/0x6e0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg+0x140/0x180 net/socket.c:744
 ____sys_sendmsg+0x312/0x410 net/socket.c:2607
 ___sys_sendmsg net/socket.c:2661 [inline]
 __sys_sendmsg+0x1d9/0x270 net/socket.c:2690
 __do_sys_sendmsg net/socket.c:2699 [inline]
 __se_sys_sendmsg net/socket.c:2697 [inline]
 __x64_sys_sendmsg+0x46/0x50 net/socket.c:2697
 x64_sys_call+0x2689/0x2d60 arch/x86/include/generated/asm/syscalls_64.h:47
 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 0xffffffff88bcd270 of 8 bytes by task 3000 on cpu 1:
 audit_ctl_owner_current kernel/audit.c:256 [inline]
 audit_log_start+0x129/0x6b0 kernel/audit.c:1880
 common_lsm_audit+0x65/0xfc0 security/lsm_audit.c:449
 slow_avc_audit+0xf9/0x140 security/selinux/avc.c:773
 avc_audit security/selinux/include/avc.h:127 [inline]
 avc_has_perm+0x129/0x160 security/selinux/avc.c:1191
 selinux_inode_follow_link+0x1d9/0x220 security/selinux/hooks.c:3074
 security_inode_follow_link+0x7f/0xc0 security/security.c:2299
 pick_link+0x35c/0x7e0 fs/namei.c:1842
 step_into+0x725/0x810 fs/namei.c:1923
 walk_component fs/namei.c:2059 [inline]
 link_path_walk+0x54c/0x820 fs/namei.c:2418
 path_openat+0x1af/0x1fa0 fs/namei.c:3929
 do_filp_open+0xf7/0x200 fs/namei.c:3960
 do_sys_openat2+0xab/0x120 fs/open.c:1415
 do_sys_open fs/open.c:1430 [inline]
 __do_sys_openat fs/open.c:1446 [inline]
 __se_sys_openat fs/open.c:1441 [inline]
 __x64_sys_openat+0xf3/0x120 fs/open.c:1441
 x64_sys_call+0x1025/0x2d60 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: 0xffff888107e4c200 -> 0x0000000000000000

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 3000 Comm: syslogd Not tainted 6.12.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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