------------[ cut here ]------------ Please remove unsupported % in format string WARNING: lib/vsprintf.c:2776 at format_decode+0x965/0xe30 lib/vsprintf.c:2776, CPU#1: syz.1.2603/15389 Modules linked in: CPU: 1 UID: 0 PID: 15389 Comm: syz.1.2603 Not tainted 6.16.0-rc2-next-20250620-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:format_decode+0x965/0xe30 lib/vsprintf.c:2776 Code: e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 0f 85 b4 04 00 00 41 0f b6 34 24 48 c7 c7 60 d7 b9 8c e8 2c 79 1a f6 90 <0f> 0b 90 90 e9 6b fc ff ff e8 5d c9 56 f6 48 89 dd e9 55 fa ff ff RSP: 0018:ffffc900030f77b0 EFLAGS: 00010246 RAX: dda664ad79d68c00 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc90004ae2000 RSI: 000000000000304b RDI: 000000000000304c RBP: ffffc900030f79ac R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfaa2c R12: ffffc900030f79ac R13: ffffffff8cb9d260 R14: 0000000000000406 R15: 0000000000000400 FS: 00007ff7a97ab6c0(0000) GS:ffff888125d26000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3957fc CR3: 000000003172e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bstr_printf+0xd0/0xb70 lib/vsprintf.c:3301 ____bpf_trace_printk kernel/trace/bpf_trace.c:378 [inline] bpf_trace_printk+0x10e/0x190 kernel/trace/bpf_trace.c:363 bpf_prog_12183cdb1cd51dab+0x37/0x3f bpf_dispatcher_nop_func include/linux/bpf.h:1322 [inline] __bpf_prog_run include/linux/filter.h:718 [inline] bpf_prog_run include/linux/filter.h:725 [inline] bpf_test_run+0x38e/0x830 net/bpf/test_run.c:434 bpf_prog_test_run_skb+0xb30/0x1560 net/bpf/test_run.c:1099 bpf_prog_test_run+0x2c7/0x340 kernel/bpf/syscall.c:4571 __sys_bpf+0x4a4/0x860 kernel/bpf/syscall.c:5996 __do_sys_bpf kernel/bpf/syscall.c:6085 [inline] __se_sys_bpf kernel/bpf/syscall.c:6083 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6083 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff7a898e929 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:00007ff7a97ab038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007ff7a8bb5fa0 RCX: 00007ff7a898e929 RDX: 0000000000000028 RSI: 0000200000000080 RDI: 000000000000000a RBP: 00007ff7a8a10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ff7a8bb5fa0 R15: 00007ffccc92e568