================================================================== BUG: KCSAN: data-race in netlink_dump / netlink_recvmsg write to 0xffff88811efba359 of 1 bytes by task 6548 on cpu 1: netlink_dump+0x659/0x720 net/netlink/af_netlink.c:2323 netlink_recvmsg+0x432/0x740 net/netlink/af_netlink.c:2013 ____sys_recvmsg+0x16c/0x2e0 ___sys_recvmsg net/socket.c:2737 [inline] do_recvmmsg+0x2f1/0x710 net/socket.c:2831 __sys_recvmmsg net/socket.c:2910 [inline] __do_sys_recvmmsg net/socket.c:2933 [inline] __se_sys_recvmmsg net/socket.c:2926 [inline] __x64_sys_recvmmsg+0xde/0x160 net/socket.c:2926 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff88811efba359 of 1 bytes by task 6547 on cpu 0: netlink_recvmsg+0x3bf/0x740 net/netlink/af_netlink.c:2011 ____sys_recvmsg+0x16c/0x2e0 ___sys_recvmsg net/socket.c:2737 [inline] do_recvmmsg+0x2f1/0x710 net/socket.c:2831 __sys_recvmmsg net/socket.c:2910 [inline] __do_sys_recvmmsg net/socket.c:2933 [inline] __se_sys_recvmmsg net/socket.c:2926 [inline] __x64_sys_recvmmsg+0xde/0x160 net/socket.c:2926 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x01 -> 0x00 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 6547 Comm: syz-executor.4 Not tainted 6.2.0-rc5-syzkaller-00013-g2475bf0250de-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 ==================================================================