CVE-2022-50867

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/msm/a6xx: Fix kvzalloc vs state_kcalloc usage<br /> <br /> adreno_show_object() is a trap! It will re-allocate the pointer it is<br /> passed on first call, when the data is ascii85 encoded, using kvmalloc/<br /> kvfree(). Which means the data *passed* to it must be kvmalloc&amp;#39;d, ie.<br /> we cannot use the state_kcalloc() helper.<br /> <br /> This partially reverts commit ec8f1813bf8d ("drm/msm/a6xx: Replace<br /> kcalloc() with kvzalloc()"), but adds the missing kvfree() to fix the<br /> memory leak that was present previously. And adds a warning comment.<br /> <br /> Patchwork: https://patchwork.freedesktop.org/patch/507014/