================================================================== BUG: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg read to 0xffff88811a5d1b28 of 8 bytes by task 14847 on cpu 0: netlink_recvmsg+0xee/0x740 net/netlink/af_netlink.c:1967 ____sys_recvmsg+0x162/0x2f0 ___sys_recvmsg net/socket.c:2749 [inline] __sys_recvmsg+0x1fd/0x3d0 net/socket.c:2779 __do_sys_recvmsg net/socket.c:2789 [inline] __se_sys_recvmsg net/socket.c:2786 [inline] __x64_sys_recvmsg+0x42/0x50 net/socket.c:2786 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 0xffff88811a5d1b28 of 8 bytes by task 14858 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+0x1d8/0x290 net/socket.c:2171 __do_sys_recvfrom net/socket.c:2189 [inline] __se_sys_recvfrom net/socket.c:2185 [inline] __x64_sys_recvfrom+0x74/0x90 net/socket.c:2185 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 -> 0x000000000000243f Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 14858 Comm: syz-executor.4 Not tainted 5.19.0-rc7-syzkaller-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 ==================================================================