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authorMarkus Armbruster <armbru@redhat.com>2013-01-10 14:24:50 +0100
committerGerd Hoffmann <kraxel@redhat.com>2013-01-14 08:59:38 +0100
commit08688af04dc1137ac2f420b35c235183926b4a23 (patch)
treec69d3e3b9e8d1ab7a5e0f394c4d91ec51babb03c /hw/qxl.c
parentbc5f92e5db6f303e73387278e32f8669f0abf0e5 (diff)
qxl: Don't drop client capability bits
interface_set_client_capabilities() copies only the first few bits, because it falls into a Classic C trap: you can declare a parameter uint8_t caps[58], but the resulting parameter type is uint8_t *, not uint8_t[58]. In particular, sizeof(caps) is sizeof(uint8_t *), not the intended sizeof(uint8_t[58]). Harmless, because the bits aren't used, yet. Broken in commit c10018d6. Spotted by Coverity. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Diffstat (limited to 'hw/qxl.c')
-rw-r--r--hw/qxl.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/qxl.c b/hw/qxl.c
index e8f380bd55..9dc44b9b88 100644
--- a/hw/qxl.c
+++ b/hw/qxl.c
@@ -951,9 +951,11 @@ static void interface_set_client_capabilities(QXLInstance *sin,
}
qxl->shadow_rom.client_present = client_present;
- memcpy(qxl->shadow_rom.client_capabilities, caps, sizeof(caps));
+ memcpy(qxl->shadow_rom.client_capabilities, caps,
+ sizeof(qxl->shadow_rom.client_capabilities));
qxl->rom->client_present = client_present;
- memcpy(qxl->rom->client_capabilities, caps, sizeof(caps));
+ memcpy(qxl->rom->client_capabilities, caps,
+ sizeof(qxl->rom->client_capabilities));
qxl_rom_set_dirty(qxl);
qxl_send_events(qxl, QXL_INTERRUPT_CLIENT);