building syzkaller on c69befb30ac10e158cc9d1557b508ee3f0eca1de...
fetching kernel...
checked out kernel commit f5bbbfec59b4e2fb7520a91de3df8a6174325d6a ("Merge tag 'probes-fixes-v7.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace", 2026-08-11 06:51:46 -0700 -0700)
cleaning kernel...
building kernel...
kernel built successfully with compiler gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
testing patch...
reproduced crash: kernel BUG in __free_frozen_pages