On Tue, Feb 14, 2023, at 22:49, Kees Cook wrote: > On Tue, Feb 14, 2023 at 02:28:08PM +0100, Arnd Bergmann wrote: >> From: Arnd Bergmann <arnd@xxxxxxxx> >> >> The ipr_log_vpd_compact() function triggers a fortified memcpy() warning >> about a potential string overflow with all versions of clang: > > Perhaps this is arch or config specific? I haven't been able to reproduce > this for some reason. I saw it on three arm32 randconfig builds out of a few thousand, with clang-15, clang-16 and clang-17. See [1] for one config that triggered it with recent linux-next based tree. Arnd [1] https://pastebin.com/c9FEjzKe