The branch main has been updated by markj:
URL:
https://cgit.FreeBSD.org/src/commit/?id=e499fdcb66b9ef3d9fc3c626daaefe909c65a2ab
commit e499fdcb66b9ef3d9fc3c626daaefe909c65a2ab
Author: Mark Johnston <ma...@freebsd.org>
AuthorDate: 2024-04-03 17:09:43 +0000
Commit: Mark Johnston <ma...@freebsd.org>
CommitDate: 2024-04-10 15:17:56 +0000
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
---
lib/libvmmapi/vmmapi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/lib/libvmmapi/vmmapi.c b/lib/libvmmapi/vmmapi.c
index 073aaddf4c92..5dcad8a16703 100644
--- a/lib/libvmmapi/vmmapi.c
+++ b/lib/libvmmapi/vmmapi.c
@@ -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) {
