22-Oct-2026 04:09:05: building syzkaller on 5cb44a80412f4dcfba9693d7d0e4c2ae352acdaa... 22-Oct-2026 04:10:45: fetching kernel... 22-Oct-2026 04:10:46: checked out kernel commit 792fbe1537d8daeca9bd1917e84078b5432aadc2 ("Linux 5.15.223", 2026-10-15 14:14:32 +0200 +0200) 22-Oct-2026 04:10:46: cleaning kernel... 22-Oct-2026 04:10:47: building kernel... 22-Oct-2026 04:17:18: kernel built successfully with compiler Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 22-Oct-2026 04:17:18: testing patch... 22-Oct-2026 04:31:22: reproduced crash: WARNING in udf_free_blocks