18-Oct-2026 17:41:26: building syzkaller on 867e44df36d93e8127938eca6f6a5c339a2ba0b8... 18-Oct-2026 17:42:07: fetching kernel... 18-Oct-2026 17:42:10: checked out kernel commit 32c52ec87d6245ee2d12ed5dd509e40062939b50 ("x86/insn-eval: Fix shadowed segment index in get_seg_reg_override_idx()", 2026-10-17 06:36:20 -1000 -1000) 18-Oct-2026 17:42:10: cleaning kernel... 18-Oct-2026 17:42:11: building kernel... 18-Oct-2026 17:52:41: kernel built successfully with compiler Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 18-Oct-2026 17:52:41: testing patch... 18-Oct-2026 18:03:24: reproduced crash: KASAN: use-after-free Read in copy_folio_from_iter_atomic