libvmmapi: Zero out the structure passed to VM_GET_MEMSEG

Avoid assuming that the kernel zeros the name buffer, it does not do
this for zero-length segments.

MFC after:	2 weeks
Sponsored by:	Innovate UK

This commit is contained in:

Mark Johnston

2024-04-03 13:09:43 -04:00

parent 1855002ddf

commit e499fdcb66

1 changed files with 1 additions and 0 deletions

									
										lib/libvmmapi/vmmapi.c
									
		+1
		
												View File
												
				@@ -371,6 +371,7 @@ vm_get_memseg(struct vmctx *ctx, int segid, size_t *lenp, char *namebuf,

					size_t n;

					int error;

					bzero(&memseg, sizeof(memseg));

					memseg.segid = segid;

					error = ioctl(ctx->fd, VM_GET_MEMSEG, &memseg);

					if (error == 0) {