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authorPeter Maydell <peter.maydell@linaro.org>2017-01-09 16:45:09 +0000
committerMichael Tokarev <mjt@tls.msk.ru>2017-01-24 23:26:53 +0300
commitba56e4cad41ea2b2fb68d18a632ebc7d4e4b1051 (patch)
tree65dd38361a1dfed9072e179c5f40f9de26e0553b
parent1706e9d819ff610154fe47ef3a195c2fd6604efe (diff)
downloadqemu-ba56e4cad41ea2b2fb68d18a632ebc7d4e4b1051.zip
hw/display/framebuffer.c: Avoid overflow for framebuffers > 4GB
Coverity points out that calculating src_len by multiplying src_width by rows could overflow. This can only happen in the implausible case of a framebuffer larger than 4GB, but we may as well fix it, placating Coverity. (CID1005515) Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
-rw-r--r--hw/display/framebuffer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/display/framebuffer.c b/hw/display/framebuffer.c
index df51358e72..25aa46c8c7 100644
--- a/hw/display/framebuffer.c
+++ b/hw/display/framebuffer.c
@@ -78,7 +78,7 @@ void framebuffer_update_display(
i = *first_row;
*first_row = -1;
- src_len = src_width * rows;
+ src_len = (hwaddr)src_width * rows;
mem = mem_section->mr;
if (!mem) {