================================================================== BUG: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg read to 0xffff88811c5deb28 of 8 bytes by task 15320 on cpu 0: netlink_recvmsg+0xee/0x740 net/netlink/af_netlink.c:1967 sock_recvmsg_nosec net/socket.c:995 [inline] sock_recvmsg net/socket.c:1013 [inline] __sys_recvfrom+0x1db/0x2a0 net/socket.c:2169 __do_sys_recvfrom net/socket.c:2187 [inline] __se_sys_recvfrom net/socket.c:2183 [inline] __x64_sys_recvfrom+0x74/0x90 net/socket.c:2183 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 write to 0xffff88811c5deb28 of 8 bytes by task 15318 on cpu 1: netlink_recvmsg+0x12c/0x740 net/netlink/af_netlink.c:1968 sock_recvmsg_nosec net/socket.c:995 [inline] sock_recvmsg net/socket.c:1013 [inline] __sys_recvfrom+0x1db/0x2a0 net/socket.c:2169 __do_sys_recvfrom net/socket.c:2187 [inline] __se_sys_recvfrom net/socket.c:2183 [inline] __x64_sys_recvfrom+0x74/0x90 net/socket.c:2183 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: 0x0000000000000000 -> 0x0000000000001000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 15318 Comm: syz-executor.4 Not tainted 6.0.0-rc3-syzkaller-00363-g7726d4c3e60b-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 ==================================================================