================================================================== BUG: KCSAN: data-race in __skb_wait_for_more_packets / unix_release_sock write to 0xffff888137d3aa78 of 1 bytes by task 22258 on cpu 0: unix_release_sock+0x298/0x680 net/unix/af_unix.c:565 unix_release+0x4e/0x70 net/unix/af_unix.c:949 __sock_release net/socket.c:649 [inline] sock_close+0x6c/0x150 net/socket.c:1314 __fput+0x295/0x520 fs/file_table.c:280 ____fput+0x11/0x20 fs/file_table.c:313 task_work_run+0x8e/0x110 kernel/task_work.c:164 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop kernel/entry/common.c:175 [inline] exit_to_user_mode_prepare+0x160/0x190 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x20/0x40 kernel/entry/common.c:300 do_syscall_64+0x50/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888137d3aa78 of 1 bytes by task 22284 on cpu 1: __skb_wait_for_more_packets+0xe8/0x2f0 net/core/datagram.c:106 __unix_dgram_recvmsg+0x21c/0x8c0 net/unix/af_unix.c:2316 unix_dgram_recvmsg net/unix/af_unix.c:2401 [inline] unix_seqpacket_recvmsg+0x5a/0x70 net/unix/af_unix.c:2269 sock_recvmsg_nosec net/socket.c:944 [inline] sock_recvmsg net/socket.c:962 [inline] sock_read_iter+0x19d/0x1e0 net/socket.c:1035 call_read_iter include/linux/fs.h:2155 [inline] new_sync_read fs/read_write.c:400 [inline] vfs_read+0x66c/0x750 fs/read_write.c:481 ksys_read+0xd9/0x190 fs/read_write.c:619 __do_sys_read fs/read_write.c:629 [inline] __se_sys_read fs/read_write.c:627 [inline] __x64_sys_read+0x3e/0x50 fs/read_write.c:627 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x00 -> 0x03 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 22284 Comm: syz-executor.0 Not tainted 5.15.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================