26-Oct-2026 01:55:12: building syzkaller on d6526ea3e6ad9081c902859bbb80f9f840377cb4... 26-Oct-2026 01:59:11: fetching kernel... 26-Oct-2026 01:59:15: checked out kernel commit 7076f684d5132e6a6145e1da2fa74771ecd052e5 ("net/sched: etf: initialise the sock_exterr_skb before filling it", 2026-10-23 17:04:27 -0700 -0700) 26-Oct-2026 01:59:15: cleaning kernel... 26-Oct-2026 01:59:17: building kernel... 26-Oct-2026 02:12:23: kernel built successfully with compiler Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 26-Oct-2026 02:12:23: testing patch... 26-Oct-2026 02:21:39: reproduced crash: INFO: rcu detected stall in futex