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Re: [PATCH for-8.2] ui/pixman-minimal.h: fix empty allocation


From: Michael Tokarev
Subject: Re: [PATCH for-8.2] ui/pixman-minimal.h: fix empty allocation
Date: Thu, 23 Nov 2023 13:15:15 +0300
User-agent: Mozilla Thunderbird

21.11.2023 12:38, Manos Pitsidianakis :
In the minimal pixman API stub that is used when the real pixman
dependency is missing a NULL dereference happens when
virtio-gpu-rutabaga allocates a pixman image with bits = NULL and
rowstride_bytes = zero. A buffer of rowstride_bytes * height is
allocated which is NULL. However, in that scenario pixman calculates a
new stride value based on given width, height and format size.

So, does rutabaga depend on pixman (as mentioned on irc), or can the
minimal in-qemu version (with this fix) be used?

/mjt



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