diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-03-15 09:17:54 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-03-15 09:17:54 -0300 |
| commit | 689bb69093d7ac9e12ab058ba2611ad5eb9347c3 (patch) | |
| tree | abb9131ea54d7c9df78e192b31a0c09635f8acab /drivers/misc/fastrpc.c | |
| parent | 2a76f6de07906f0bb5f2a13fb02845db1695cc29 (diff) | |
| parent | 1e28eed17697bcf343c6743f0028cc3b5dd88bf0 (diff) | |
Merge remote-tracking branch 'torvalds/master' into perf/urgent
To update kernel headers and check if some need syncing.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'drivers/misc/fastrpc.c')
| -rw-r--r-- | drivers/misc/fastrpc.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c index f12e909034ac..beda610e6b30 100644 --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -950,6 +950,11 @@ static int fastrpc_internal_invoke(struct fastrpc_user *fl, u32 kernel, if (!fl->cctx->rpdev) return -EPIPE; + if (handle == FASTRPC_INIT_HANDLE && !kernel) { + dev_warn_ratelimited(fl->sctx->dev, "user app trying to send a kernel RPC message (%d)\n", handle); + return -EPERM; + } + ctx = fastrpc_context_alloc(fl, kernel, sc, args); if (IS_ERR(ctx)) return PTR_ERR(ctx); |