================================================================== BUG: KCSAN: data-race in audit_log_start / audit_receive write to 0xffffffff88e52460 of 8 bytes by task 20959 on cpu 1: audit_ctl_unlock kernel/audit.c:243 [inline] audit_receive+0x200d/0x2180 kernel/audit.c:1581 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline] netlink_unicast+0x59e/0x670 net/netlink/af_netlink.c:1339 netlink_sendmsg+0x58b/0x6b0 net/netlink/af_netlink.c:1883 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x142/0x180 net/socket.c:727 ____sys_sendmsg+0x31e/0x4e0 net/socket.c:2566 ___sys_sendmsg+0x17b/0x1d0 net/socket.c:2620 __sys_sendmsg net/socket.c:2652 [inline] __do_sys_sendmsg net/socket.c:2657 [inline] __se_sys_sendmsg net/socket.c:2655 [inline] __x64_sys_sendmsg+0xd4/0x160 net/socket.c:2655 x64_sys_call+0x2999/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:47 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd0/0x1a0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffffffff88e52460 of 8 bytes by task 20971 on cpu 0: audit_ctl_owner_current kernel/audit.c:256 [inline] audit_log_start+0x129/0x6c0 kernel/audit.c:1881 audit_seccomp+0x48/0x100 kernel/auditsc.c:3001 seccomp_log kernel/seccomp.c:1033 [inline] __seccomp_filter+0x69d/0x10d0 kernel/seccomp.c:1328 __secure_computing+0x82/0x150 kernel/seccomp.c:1388 syscall_trace_enter+0xcf/0x1e0 kernel/entry/common.c:52 syscall_enter_from_user_mode_work include/linux/entry-common.h:169 [inline] syscall_enter_from_user_mode include/linux/entry-common.h:199 [inline] do_syscall_64+0xaa/0x1a0 arch/x86/entry/syscall_64.c:90 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0xffff888103138000 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 20971 Comm: syz.2.6269 Not tainted 6.15.0-rc6-syzkaller-00208-g3c21441eeffc #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 ================================================================== loop2: detected capacity change from 0 to 2048