Hello, I reported the bug in subject on the kernel bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=220387 Kernel 6.16.0 crashes with a CFI panic at boot in crypto/zstd.c (am compiling with Clang+thinLTO). I bisected, did some digging and managed to produce a working patch (I'm not sure of the correctness of it). Can you please take a look at the bug and apply/rework the patch as you see fit? I guess this could be added to stable in 6.16.2 then (patch still applies cleanly on 6.16.1). Thanks, Fabio