------------[ cut here ]------------
WARNING: CPU: 1 PID: 21052 at kernel/trace/ring_buffer.c:3525 check_buffer+0x88a/0x930 kernel/trace/ring_buffer.c:3525
Modules linked in:
CPU: 1 PID: 21052 Comm: syz.7.4486 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:3525
Code: 4c 89 ee e8 48 63 a3 08 48 c7 c7 20 54 a8 97 be 04 00 00 00 e8 77 48 4e 00 f0 ff 0d 80 f8 22 16 e9 91 fe ff ff e8 d6 ea 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:ffffc9000ee2f5c0 EFLAGS: 00010246

RAX: ffffffff81855baa RBX: 0000000000000003 RCX: 0000000000080000
RDX: ffffc9001247e000 RSI: 000000000007ffff RDI: 0000000000080000
RBP: ffffc9000ee2f778 R08: ffff888018740007 R09: 1ffff110030e8000
R10: dffffc0000000000 R11: ffffed10030e8001 R12: 000000ac128c72c9
R13: 0000000000000d6c R14: ffff888018740000 R15: dffffc0000000000
FS:  00007f17392916c0(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3171cff8 CR3: 000000005e829000 CR4: 00000000003506e0
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:3621
 rb_reserve_next_event kernel/trace/ring_buffer.c:3756 [inline]
 ring_buffer_lock_reserve+0xafa/0xf10 kernel/trace/ring_buffer.c:3815
 __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_38ed67c9dc514ea7+0x3f/0x46
 bpf_dispatcher_nop_func include/linux/bpf.h:1013 [inline]
 __bpf_prog_run include/linux/filter.h:608 [inline]
 bpf_prog_run include/linux/filter.h:615 [inline]
 bpf_prog_run_pin_on_cpu include/linux/filter.h:632 [inline]
 bpf_flow_dissect+0x130/0x3f0 net/core/flow_dissector.c:922
 bpf_prog_test_run_flow_dissector+0x431/0x640 net/bpf/test_run.c:1552
 bpf_prog_test_run+0x31c/0x390 kernel/bpf/syscall.c:3695
 __sys_bpf+0x62b/0x780 kernel/bpf/syscall.c:5053
 __do_sys_bpf kernel/bpf/syscall.c:5139 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5137 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:5137
 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: 0033:0x7f173839e1d9
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:00007f1739291028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f1738625fa0 RCX: 00007f173839e1d9
RDX: 0000000000000050 RSI: 0000200000000300 RDI: 000000000000000a
RBP: 00007f1738435888 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1738626038 R14: 00007f1738625fa0 R15: 00007fff603f0c18
 </TASK>