ci starts bisection 2022-12-29 18:10:46.987428842 +0000 UTC m=+178197.530134408 bisecting fixing commit since 7e18e42e4b280c85b76967a9106a13ca61c16179 building syzkaller on 28811d0ac5274e8b3730fcf2ad0634d723fcd878 ensuring issue is reproducible on original commit 7e18e42e4b280c85b76967a9106a13ca61c16179 testing commit 7e18e42e4b280c85b76967a9106a13ca61c16179 gcc compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 2818b3beda15124741884fa36cc9a35ddeb58570b8b2e4deb288ad981a9ddb5c all runs: crashed: WARNING in bpf_verifier_vlog testing current HEAD 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: 392a9cddadfe312f4751bce7a382ec9f6b4cf444811cb1bcb68916f615739bf3 all runs: crashed: WARNING in bpf_verifier_vlog revisions tested: 2, total time: 22m45.365040482s (build: 15m13.16702536s, test: 6m22.140761048s) the crash still happens on HEAD commit msg: Linux 6.2-rc1 crash: WARNING in bpf_verifier_vlog ------------[ cut here ]------------ verifier log line truncated - local buffer too short WARNING: CPU: 0 PID: 5513 at kernel/bpf/verifier.c:301 bpf_verifier_vlog+0x1fe/0x320 kernel/bpf/verifier.c:301 Modules linked in: CPU: 0 PID: 5513 Comm: syz-executor.0 Not tainted 6.2.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:bpf_verifier_vlog+0x1fe/0x320 kernel/bpf/verifier.c:301 Code: 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f c3 80 3d 27 da 5c 0b 00 75 15 48 c7 c7 40 e2 12 89 c6 05 17 da 5c 0b 01 e8 b9 6a 11 07 <0f> 0b 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 0f b6 04 RSP: 0018:ffffc90004d4f8a8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff888027492210 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff896618a0 RDI: fffff520009a9f07 RBP: ffffc90004d4f9a0 R08: 0000000000000001 R09: ffffc90004d4f6cf R10: fffff520009a9ed9 R11: 0000000000000000 R12: ffff888027492000 R13: 00000000000003ff R14: ffff888027492214 R15: ffffffff8914c4e0 FS: 00007fa3eb91f700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055938ec95028 CR3: 000000001a99f000 CR4: 0000000000350ee0 Call Trace: __btf_verifier_log+0xa6/0xd0 kernel/bpf/btf.c:1370 __btf_verifier_log_type+0x39b/0x9c0 kernel/bpf/btf.c:1407 btf_func_proto_check_meta+0x110/0x120 kernel/bpf/btf.c:4213 btf_check_meta kernel/bpf/btf.c:4907 [inline] btf_check_all_metas+0x318/0xb10 kernel/bpf/btf.c:4931 btf_parse_type_sec kernel/bpf/btf.c:5067 [inline] btf_parse kernel/bpf/btf.c:5459 [inline] btf_new_fd+0x669/0x2810 kernel/bpf/btf.c:7068 bpf_btf_load kernel/bpf/syscall.c:4338 [inline] __sys_bpf+0x923/0x3aa0 kernel/bpf/syscall.c:5024 __do_sys_bpf kernel/bpf/syscall.c:5083 [inline] __se_sys_bpf kernel/bpf/syscall.c:5081 [inline] __x64_sys_bpf+0x70/0xb0 kernel/bpf/syscall.c:5081 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa3ea889279 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007fa3eb91f168 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fa3ea99bf80 RCX: 00007fa3ea889279 RDX: 0000000000000020 RSI: 0000000020000240 RDI: 0000000000000012 RBP: 00007fa3ea8e32e9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffea742259f R14: 00007fa3eb91f300 R15: 0000000000022000