26-Oct-2026 00:36:09: building syzkaller on fb8f743dc82ba3a879228aa71ce09fdc570665d1... 26-Oct-2026 00:36:45: fetching kernel... 26-Oct-2026 00:36:49: 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 00:36:49: cleaning kernel... 26-Oct-2026 00:36:51: building kernel... 26-Oct-2026 00:50:09: kernel built successfully with compiler Debian clang version 22.1.8 (1~deb13u4), Debian LLD 22.1.8 26-Oct-2026 00:50:09: testing patch... 26-Oct-2026 00:59:33: reproduced crash: INFO: rcu detected stall in x64_sys_call