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| author | Ingo Molnar <mingo@kernel.org> | 2021-03-18 15:27:03 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-03-18 15:27:03 +0100 |
| commit | 14ff3ed86e2c1700345f411b90a78f62867f217e (patch) | |
| tree | 0eec583be82296fa6359edb59f2921095eef0dc2 /drivers/misc/fastrpc.c | |
| parent | 81519f778830d1ab02274eeaaeab6797fdc4ec52 (diff) | |
| parent | 1e28eed17697bcf343c6743f0028cc3b5dd88bf0 (diff) | |
| download | linux-14ff3ed86e2c1700345f411b90a78f62867f217e.tar.gz | |
Merge tag 'v5.12-rc3' into x86/cleanups, to refresh the tree
Signed-off-by: Ingo Molnar <mingo@kernel.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); |