===================================================== BUG: KMSAN: uninit-value in vsock_assign_transport+0xb2a/0xb90 net/vmw_vsock/af_vsock.c:500 vsock_assign_transport+0xb2a/0xb90 net/vmw_vsock/af_vsock.c:500 vsock_connect+0x544/0x1560 net/vmw_vsock/af_vsock.c:1393 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x606/0x690 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x91/0xe0 net/socket.c:2072 x64_sys_call+0x3356/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:43 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Uninit was created at: __kmalloc_large_node+0x231/0x370 mm/slub.c:3921 __do_kmalloc_node mm/slub.c:3954 [inline] __kmalloc_node+0xb07/0x1060 mm/slub.c:3973 kmalloc_node include/linux/slab.h:648 [inline] kvmalloc_node+0xc0/0x2d0 mm/util.c:634 kvmalloc include/linux/slab.h:766 [inline] vhost_vsock_dev_open+0x44/0x510 drivers/vhost/vsock.c:659 misc_open+0x66b/0x760 drivers/char/misc.c:165 chrdev_open+0xa5f/0xb80 fs/char_dev.c:414 do_dentry_open+0x11f1/0x2120 fs/open.c:955 vfs_open+0x7e/0xa0 fs/open.c:1089 do_open fs/namei.c:3642 [inline] path_openat+0x4a3c/0x5b00 fs/namei.c:3799 do_filp_open+0x20e/0x590 fs/namei.c:3826 do_sys_openat2+0x1bf/0x2f0 fs/open.c:1406 do_sys_open fs/open.c:1421 [inline] __do_sys_openat fs/open.c:1437 [inline] __se_sys_openat fs/open.c:1432 [inline] __x64_sys_openat+0x2a1/0x310 fs/open.c:1432 x64_sys_call+0x3a64/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:258 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f CPU: 1 PID: 5021 Comm: syz-executor390 Not tainted 6.9.0-rc4-syzkaller-00038-g8cd26fd90c1a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 =====================================================