syzbot

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Please remove unsupported %� in format string
WARNING: CPU: 0 PID: 5831 at lib/vsprintf.c:2659 format_decode+0x1193/0x1bb0 lib/vsprintf.c:2659
Modules linked in:
CPU: 0 UID: 0 PID: 5831 Comm: syz-executor188 Not tainted 6.12.0-rc5-syzkaller-00063-g0fc810ae3ae1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:format_decode+0x1193/0x1bb0 lib/vsprintf.c:2659
Code: 32 dd f5 c6 05 97 0a 4e 04 01 90 43 0f b6 04 34 84 c0 0f 85 14 0a 00 00 41 0f b6 75 00 48 c7 c7 e0 ac 34 8d e8 5e 27 9e f5 90 <0f> 0b 90 90 e9 0e fd ff ff 48 8b 4c 24 10 80 e1 07 38 c1 0f 8c 14
RSP: 0018:ffffc9000386f5c0 EFLAGS: 00010246
RAX: b0094a5d18138e00 RBX: 0000000000000000 RCX: ffff88807d3a0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000386f6b0 R08: ffffffff8155d162 R09: fffffbfff1cf9fd0
R10: dffffc0000000000 R11: fffffbfff1cf9fd0 R12: 1ffff9200070df1d
R13: ffffc9000386f8ec R14: dffffc0000000000 R15: ffff0000ffffff00
FS:  000055557a135380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000018874398 CR3: 00000000794f8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bstr_printf+0x137/0x1210 lib/vsprintf.c:3232
 ____bpf_trace_printk kernel/trace/bpf_trace.c:389 [inline]
 bpf_trace_printk+0x1a1/0x230 kernel/trace/bpf_trace.c:374
 bpf_prog_12183cdb1cd51dab+0x37/0x3b
 bpf_dispatcher_nop_func include/linux/bpf.h:1265 [inline]
 __bpf_prog_run include/linux/filter.h:701 [inline]
 bpf_prog_run include/linux/filter.h:708 [inline]
 bpf_test_run+0x4f0/0xa90 net/bpf/test_run.c:433
 bpf_prog_test_run_skb+0xc97/0x1820 net/bpf/test_run.c:1094
 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4266
 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5671
 __do_sys_bpf kernel/bpf/syscall.c:5760 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:5758 [inline]
 __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5758
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f00c78514e9
Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffb87a9c48 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fffb87a9e18 RCX: 00007f00c78514e9
RDX: 0000000000000028 RSI: 0000000020000080 RDI: 000000000000000a
RBP: 00007f00c78c4610 R08: 0000000000000000 R09: 00007fffb87a9e18
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fffb87a9e08 R14: 0000000000000001 R15: 0000000000000001
 </TASK>