28-Sep-2026 07:08:49: building syzkaller on 1eda0d1459e5ff07903ffa2f8cedf55ae7b24af0... 28-Sep-2026 07:09:14: fetching kernel... 28-Sep-2026 07:09:16: checked out kernel commit 0248c33e835ecbec3a591f93fdaae53f7b90a4d6 ("Linux 5.15.221", 2026-09-14 13:20:54 +0200 +0200) 28-Sep-2026 07:09:16: cleaning kernel... 28-Sep-2026 07:09:17: building kernel... 28-Sep-2026 07:14:43: kernel built successfully with compiler Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 28-Sep-2026 07:14:43: testing patch... 28-Sep-2026 07:21:35: reproduced crash: KASAN: use-after-free Read in udf_sync_fs