diff options
| -rw-r--r-- | ipc/copy_user.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/ipc/copy_user.c b/ipc/copy_user.c index a4b238de..850ea49e 100644 --- a/ipc/copy_user.c +++ b/ipc/copy_user.c @@ -442,16 +442,18 @@ int copyinmsg (const void *userbuf, void *kernelbuf, const size_t usize, const s } kmsg->msgh_size = sizeof(mach_msg_header_t) + ksaddr - (vm_offset_t)(kmsg + 1); - assert(kmsg->msgh_size <= ksize); #else /* The 64 bit interface ensures the header is the same size, so it does not need any resizing. */ _Static_assert(sizeof(mach_msg_header_t) == sizeof(mach_msg_user_header_t), "mach_msg_header_t and mach_msg_user_header_t expected to be of the same size"); if (copyin(umsg, kmsg, usize)) return 1; + + kmsg->msgh_size = usize; kmsg->msgh_remote_port &= 0xFFFFFFFF; // FIXME: still have port names here kmsg->msgh_local_port &= 0xFFFFFFFF; // also, this assumes little-endian #endif + assert(kmsg->msgh_size <= ksize); return 0; } |