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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-15 08:43:49 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-15 08:43:49 +0100 |
| commit | 280def1e1c17d35b21206881937d4498bcc1f503 (patch) | |
| tree | 6e40d88144f06dce56338c60073b85b36207f1ef /drivers/misc/fastrpc.c | |
| parent | 3d82be8be6fdf38543fa3ae9c35beda4a8a8d067 (diff) | |
| parent | 1e28eed17697bcf343c6743f0028cc3b5dd88bf0 (diff) | |
| download | linux-280def1e1c17d35b21206881937d4498bcc1f503.tar.gz linux-280def1e1c17d35b21206881937d4498bcc1f503.tar.bz2 linux-280def1e1c17d35b21206881937d4498bcc1f503.zip | |
Merge 5.12-rc3 into tty-next
Resolves a merge issue with:
drivers/tty/hvc/hvcs.c
and we want the tty/serial fixes from 5.12-rc3 in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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); |