18-Aug-2026 17:09:06: building syzkaller on 1e62d1982527c3b4e18df04d61f2560fa1f434cc...
18-Aug-2026 17:09:53: fetching kernel...
18-Aug-2026 17:09:55: checked out kernel commit a825653ab7afc3350ddc9d46b7fd02d0f53a798d ("Revert \"skmsg: convert struct sk_msg_sg::copy to a bitmap\"", 2026-08-17 14:55:33 +0000 UTC)
18-Aug-2026 17:09:55: cleaning kernel...
18-Aug-2026 17:09:56: building kernel...
18-Aug-2026 17:13:02: kernel built successfully with compiler Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
18-Aug-2026 17:13:02: testing patch...
18-Aug-2026 17:15:53: reproduced crash: UBSAN: shift-out-of-bounds in ext4_fill_super