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From cb260ba95d2bb1ae98b05e289d1b7947ac409230 Mon Sep 17 00:00:00 2001
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From: Peter Hutterer <peter.hutterer@who-t.net>
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Date: Tue, 29 Nov 2022 13:24:00 +1000
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Subject: [PATCH xserver 2/7] Xi: return an error from XI property changes if
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verification failed
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Both ProcXChangeDeviceProperty and ProcXIChangeProperty checked the
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property for validity but didn't actually return the potential error.
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Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
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Acked-by: Olivier Fourdan <ofourdan@redhat.com>
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---
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Xi/xiproperty.c | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/Xi/xiproperty.c b/Xi/xiproperty.c
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index a36f7d61df..68c362c628 100644
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--- a/Xi/xiproperty.c
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+++ b/Xi/xiproperty.c
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@@ -902,6 +902,8 @@ ProcXChangeDeviceProperty(ClientPtr client)
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rc = check_change_property(client, stuff->property, stuff->type,
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stuff->format, stuff->mode, stuff->nUnits);
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+ if (rc != Success)
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+ return rc;
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len = stuff->nUnits;
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if (len > (bytes_to_int32(0xffffffff - sizeof(xChangeDevicePropertyReq))))
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@@ -1141,6 +1143,9 @@ ProcXIChangeProperty(ClientPtr client)
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rc = check_change_property(client, stuff->property, stuff->type,
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stuff->format, stuff->mode, stuff->num_items);
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+ if (rc != Success)
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+ return rc;
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+
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len = stuff->num_items;
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if (len > bytes_to_int32(0xffffffff - sizeof(xXIChangePropertyReq)))
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return BadLength;
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--
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2.38.1
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