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| author | Dan McDonald <danmcd@mnx.io> | 2022-05-03 00:10:41 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-05-03 00:10:41 -0400 |
| commit | e2ccbc6b238eb1f8e74a434c640e5b322f359224 (patch) | |
| tree | 679c0fdb9270e3844f7bb68a60eea351a58702d2 /usr | |
| parent | e9f6569a02449ea535efa06fb1c4f3b93bb85a35 (diff) | |
| download | illumos-joyent-e2ccbc6b238eb1f8e74a434c640e5b322f359224.tar.gz | |
OS-8378 Have bhhwcompat exploit illumos#14660
Reviewed by: Brian Bennett <brian.bennett@mnx.io>
Approved by: Brian Bennett <brian.bennett@mnx.io>
Diffstat (limited to 'usr')
| -rw-r--r-- | usr/src/lib/brand/bhyve/zone/bhhwcompat.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/usr/src/lib/brand/bhyve/zone/bhhwcompat.c b/usr/src/lib/brand/bhyve/zone/bhhwcompat.c index 5f7a20feba..d13df8cd42 100644 --- a/usr/src/lib/brand/bhyve/zone/bhhwcompat.c +++ b/usr/src/lib/brand/bhyve/zone/bhhwcompat.c @@ -11,6 +11,7 @@ /* * Copyright 2018, Joyent, Inc. + * Copyright 2022 MNX Cloud, Inc. */ /* @@ -43,7 +44,7 @@ usage() int main(int argc, char *argv[]) { - int fd, c; + int fd, c, version; char emsg[128]; boolean_t max_cpu = B_FALSE; boolean_t verbose = B_FALSE; @@ -72,6 +73,15 @@ main(int argc, char *argv[]) } emsg[0] = '\0'; + version = ioctl(fd, VMM_INTERFACE_VERSION, 0); + if (version != VMM_CURRENT_INTERFACE_VERSION) { + if (verbose) { + fprintf(stderr, "mismatched interface version, " + "expecting %d, got %d\n", + VMM_CURRENT_INTERFACE_VERSION, version); + } + exit(1); + } if (ioctl(fd, VMM_VM_SUPPORTED, emsg) < 0) { if (verbose) fprintf(stderr, "%s\n", emsg); |