ci starts bisection 2023-04-03 10:32:04.179036528 +0000 UTC m=+17474.501779029 bisecting fixing commit since 1b929c02afd37871d5afb9d498426f83432e71c2 building syzkaller on 44712fbc6b687170984c3562336a415b56d82607 ensuring issue is reproducible on original commit 1b929c02afd37871d5afb9d498426f83432e71c2 testing commit 1b929c02afd37871d5afb9d498426f83432e71c2 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 663d28472051edbbdbcc32de07f734f0496742032f3992853dff6b2712963b2f all runs: crashed: WARNING in bpf_verifier_vlog testing current HEAD 7e364e56293bb98cae1b55fd835f5991c4e96e7d testing commit 7e364e56293bb98cae1b55fd835f5991c4e96e7d gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 5446685e453b5aaf5c06c415153902803857b8da6c91cc3872c8dcb2ad202e78 all runs: crashed: WARNING in bpf_verifier_vlog revisions tested: 2, total time: 35m8.338816786s (build: 27m37.338874718s, test: 6m19.514034332s) the crash still happens on HEAD commit msg: Linux 6.3-rc5 crash: WARNING in bpf_verifier_vlog ------------[ cut here ]------------ verifier log line truncated - local buffer too short WARNING: CPU: 0 PID: 5546 at kernel/bpf/verifier.c:306 bpf_verifier_vlog+0x22c/0x360 kernel/bpf/verifier.c:306 Modules linked in: CPU: 0 PID: 5546 Comm: syz-executor.0 Not tainted 6.3.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 RIP: 0010:bpf_verifier_vlog+0x22c/0x360 kernel/bpf/verifier.c:306 Code: 5d 41 5c 41 5d 41 5e 41 5f e9 60 d7 d8 ff 80 3d dc b3 ca 0b 00 75 15 48 c7 c7 c0 30 72 89 c6 05 cc b3 ca 0b 01 e8 f4 6e bf ff <0f> 0b 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 0f b6 04 RSP: 0018:ffffc90002fbf880 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88807921c210 RCX: 0000000000000000 RDX: 0000000000000002 RSI: 0000000000000008 RDI: 0000000000000001 RBP: ffffc90002fbf980 R08: 0000000000000000 R09: ffffc90002fbf5af R10: fffff520005f7eb5 R11: 0000000000000000 R12: 00000000000003ff R13: ffff88807921c214 R14: ffff88806c900018 R15: ffffffff8973d9e0 FS: 00007f6cbb6d9700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020100000 CR3: 0000000028e39000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __btf_verifier_log+0xa6/0xd0 kernel/bpf/btf.c:1376 __btf_verifier_log_type+0x39b/0x9c0 kernel/bpf/btf.c:1419 btf_func_proto_check_meta+0x114/0x120 kernel/bpf/btf.c:4306 btf_check_meta kernel/bpf/btf.c:5001 [inline] btf_check_all_metas+0x318/0xb10 kernel/bpf/btf.c:5025 btf_parse_type_sec kernel/bpf/btf.c:5161 [inline] btf_parse kernel/bpf/btf.c:5556 [inline] btf_new_fd+0x67b/0x2830 kernel/bpf/btf.c:7188 bpf_btf_load kernel/bpf/syscall.c:4351 [inline] __sys_bpf+0x1092/0x3d30 kernel/bpf/syscall.c:5037 __do_sys_bpf kernel/bpf/syscall.c:5096 [inline] __se_sys_bpf kernel/bpf/syscall.c:5094 [inline] __x64_sys_bpf+0x74/0xb0 kernel/bpf/syscall.c:5094 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f6cba88c0a9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6cbb6d9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f6cba9abf80 RCX: 00007f6cba88c0a9 RDX: 0000000000000020 RSI: 0000000020000240 RDI: 0000000000000012 RBP: 00007f6cba8e7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdc458810f R14: 00007f6cbb6d9300 R15: 0000000000022000