Re: [PATCH 0/3] fbdev: Fix use-after-free caused by wrong fb_info cleanup in drivers

Hello Thomas,

On 5/5/22 10:16, Thomas Zimmermann wrote:

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Patch #1 adds a WARN_ON() to framebuffer_release() to prevent the use-after-free to happen.

Patch #2 and patch #3 fixes the simplefb and efifb drivers respectively, to free the resources at the correct place.

From a quick look, vesafb seems to be affected as well.

Right, I wrongly assumed that we only cared about efifb and simplefb but forgot that vesafb is used when setting a VESA mode with vga=foo. I'll add it in a v2.

Best regards Thomas