------------[ cut here ]------------ WARNING: CPU: 0 PID: 7975 at kernel/trace/ring_buffer.c:3526 check_buffer+0x88a/0x930 kernel/trace/ring_buffer.c:3526 Modules linked in: CPU: 0 PID: 7975 Comm: syz.7.1187 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:check_buffer+0x88a/0x930 kernel/trace/ring_buffer.c:3526 Code: 4c 89 ee e8 68 bf 9f 08 48 c7 c7 20 14 c6 96 be 04 00 00 00 e8 87 1d 4e 00 f0 ff 0d 20 d5 40 15 e9 91 fe ff ff e8 16 ef fc ff <0f> 0b e9 e2 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 20 f8 ff RSP: 0018:ffffc900050bf5c0 EFLAGS: 00010287 RAX: ffffffff81853f0a RBX: 0000000000000003 RCX: 0000000000080000 RDX: ffffc9001dc00000 RSI: 0000000000000077 RDI: 0000000000000078 RBP: ffffc900050bf778 R08: ffff888017478807 R09: 1ffff11002e8f100 R10: dffffc0000000000 R11: ffffed1002e8f101 R12: 0000001c1e0eb826 R13: 0000000000000460 R14: ffff888017478800 R15: dffffc0000000000 FS: 00007f4a37a706c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b30720ff8 CR3: 000000005f983000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __rb_reserve_next+0x4d9/0xd00 kernel/trace/ring_buffer.c:3622 rb_reserve_next_event kernel/trace/ring_buffer.c:3757 [inline] ring_buffer_lock_reserve+0xafa/0xf10 kernel/trace/ring_buffer.c:3816 __trace_buffer_lock_reserve kernel/trace/trace.c:956 [inline] trace_event_buffer_lock_reserve+0x1ce/0x6f0 kernel/trace/trace.c:2843 trace_event_buffer_reserve+0x2a8/0x3d0 kernel/trace/trace_events.c:647 do_trace_event_raw_event_bpf_trace_printk kernel/trace/bpf_trace.h:11 [inline] trace_event_raw_event_bpf_trace_printk+0x112/0x230 kernel/trace/bpf_trace.h:11 trace_bpf_trace_printk+0x199/0x220 kernel/trace/bpf_trace.h:11 ____bpf_trace_printk kernel/trace/bpf_trace.c:391 [inline] bpf_trace_printk+0x13e/0x1c0 kernel/trace/bpf_trace.c:374 bpf_prog_684afd27cbd518f8+0x3c/0x64 bpf_dispatcher_nop_func include/linux/bpf.h:1012 [inline] __bpf_prog_run include/linux/filter.h:607 [inline] bpf_prog_run include/linux/filter.h:614 [inline] __bpf_prog_test_run_raw_tp+0x1ed/0x430 net/bpf/test_run.c:847 bpf_prog_test_run_raw_tp+0x45a/0x680 net/bpf/test_run.c:889 bpf_prog_test_run+0x31c/0x390 kernel/bpf/syscall.c:3695 __sys_bpf+0x62b/0x780 kernel/bpf/syscall.c:5050 __do_sys_bpf kernel/bpf/syscall.c:5136 [inline] __se_sys_bpf kernel/bpf/syscall.c:5134 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5134 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f4a36b9e0d9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4a37a70028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f4a36e25fa0 RCX: 00007f4a36b9e0d9 RDX: 000000000000000c RSI: 00002000000004c0 RDI: 000000000000000a RBP: 00007f4a36c35024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4a36e26038 R14: 00007f4a36e25fa0 R15: 00007ffdaade8ec8 </TASK>