diff options
| author | Michal Luczaj <mhal@rbox.co> | 2025-07-03 17:18:20 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-07-08 08:39:49 -0700 |
| commit | 1e7d9df379a04ccd0c2f82f39fbb69d482e864cc (patch) | |
| tree | e36fa8c3602a18a307393d45fd7c8b17fea2d8d0 | |
| parent | 687aa0c5581b8d4aa87fd92973e4ee576b550cdf (diff) | |
vsock: Fix IOCTL_VM_SOCKETS_GET_LOCAL_CID to check also `transport_local`
Support returning VMADDR_CID_LOCAL in case no other vsock transport is
available.
Fixes: 0e12190578d0 ("vsock: add local transport support in the vsock core")
Suggested-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Link: https://patch.msgid.link/20250703-vsock-transports-toctou-v4-3-98f0eb530747@rbox.co
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | net/vmw_vsock/af_vsock.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 66404c06bdaa..1053662725f8 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -2581,6 +2581,8 @@ static long vsock_dev_do_ioctl(struct file *filp, cid = vsock_registered_transport_cid(&transport_g2h); if (cid == VMADDR_CID_ANY) cid = vsock_registered_transport_cid(&transport_h2g); + if (cid == VMADDR_CID_ANY) + cid = vsock_registered_transport_cid(&transport_local); if (put_user(cid, p) != 0) retval = -EFAULT; |