------------[ cut here ]------------ Please remove unsupported % in format string WARNING: CPU: 0 PID: 5962 at lib/vsprintf.c:2700 format_decode+0x8a9/0xcb0 lib/vsprintf.c:2700 Modules linked in: CPU: 0 UID: 0 PID: 5962 Comm: syz.3.11 Not tainted 6.14.0-syzkaller-07422-gacb4f33713b9 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:format_decode+0x8a9/0xcb0 lib/vsprintf.c:2700 Code: f5 26 04 01 90 4c 89 f8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 f0 03 00 00 41 0f b6 37 48 c7 c7 40 f7 75 8d e8 28 9f 61 f5 90 <0f> 0b 90 90 e9 9c fc ff ff e8 39 8b a2 f5 4d 89 ee 4c 8b 6c 24 08 RSP: 0018:ffffc90004527640 EFLAGS: 00010246 RAX: 7b5ff35bb47e9900 RBX: ffffffff8d75f241 RCX: 0000000000080000 RDX: ffffc9000db15000 RSI: 0000000000005d27 RDI: 0000000000005d28 RBP: ffffffff8d75f240 R08: ffffffff81829db2 R09: 1ffffffff20bbace R10: dffffc0000000000 R11: fffffbfff20bbacf R12: dffffc0000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffffc900045278ec FS: 00007f212772a6c0(0000) GS:ffff888124ff1000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2127729f98 CR3: 0000000066348000 CR4: 0000000000350ef0 Call Trace: bstr_printf+0x167/0xef0 lib/vsprintf.c:3225 ____bpf_trace_printk kernel/trace/bpf_trace.c:378 [inline] bpf_trace_printk+0x1a3/0x230 kernel/trace/bpf_trace.c:363 bpf_prog_12183cdb1cd51dab+0x37/0x3f bpf_dispatcher_nop_func include/linux/bpf.h:1290 [inline] __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run include/linux/filter.h:708 [inline] bpf_test_run+0x4ec/0xa90 net/bpf/test_run.c:434 bpf_prog_test_run_skb+0xcc3/0x1850 net/bpf/test_run.c:1093 bpf_prog_test_run+0x2e6/0x360 kernel/bpf/syscall.c:4407 __sys_bpf+0x49f/0x850 kernel/bpf/syscall.c:5813 __do_sys_bpf kernel/bpf/syscall.c:5902 [inline] __se_sys_bpf kernel/bpf/syscall.c:5900 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5900 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f212698d169 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f212772a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f2126ba6080 RCX: 00007f212698d169 RDX: 0000000000000028 RSI: 0000200000000080 RDI: 000000000000000a RBP: 00007f2126a0e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f2126ba6080 R15: 00007ffe39cd0808