20-Sep-2026 23:30:43: building syzkaller on 5d52cba5d9a409e44dfb6a2603f871fc7631cb2c...
20-Sep-2026 23:31:06: fetching kernel...
20-Sep-2026 23:31:08: checked out kernel commit 5bfe2b8c1439354d25dc5b1779cd0bb75bb90a7f ("Revert \"mmc: sdhci: make tuning_err a signed int\"", 2026-09-11 15:56:56 +0000 UTC)
20-Sep-2026 23:31:08: cleaning kernel...
20-Sep-2026 23:31:08: building kernel...
20-Sep-2026 23:33:58: kernel built successfully with compiler Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
20-Sep-2026 23:33:58: testing patch...
20-Sep-2026 23:51:27: reproduced crash: UBSAN: shift-out-of-bounds in parse_options