syzbot

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Please remove unsupported %� in format string
WARNING: CPU: 0 PID: 3506 at lib/vsprintf.c:2667 format_decode+0x12d2/0x1f10 lib/vsprintf.c:2667
Modules linked in:
CPU: 0 PID: 3506 Comm: syz-executor393 Not tainted 5.15.149-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:format_decode+0x12d2/0x1f10 lib/vsprintf.c:2667
Code: a4 09 01 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0 0f 85 30 0c 00 00 41 0f be 36 48 c7 c7 20 b4 db 8a e8 8e 80 1f fd <0f> 0b e9 01 fa ff ff 48 8b 4c 24 18 80 e1 07 38 c1 0f 8c e3 ed ff
RSP: 0018:ffffc900020676e0 EFLAGS: 00010046
RAX: 8af68d4c74891100 RBX: 00000000ffffffdb RCX: ffff888021b03b80
RDX: 0000000000000000 RSI: 0000000080000002 RDI: 0000000000000000
RBP: ffffc900020677d0 R08: ffffffff8166625c R09: ffffed1017344f24
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff0a00ffffff00
R13: ffff0000ffffff00 R14: ffffc900020679ec R15: 1ffff9200040cf3d
FS:  00005555573c5380(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020001000 CR3: 000000001a94d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 bstr_printf+0x130/0x10c0 lib/vsprintf.c:3238
 ____bpf_trace_printk kernel/trace/bpf_trace.c:383 [inline]
 bpf_trace_printk+0x191/0x3d0 kernel/trace/bpf_trace.c:368
 bpf_prog_12183cdb1cd51dab+0x2e/0x8e4
 bpf_dispatcher_nop_func include/linux/bpf.h:780 [inline]
 __bpf_prog_run include/linux/filter.h:625 [inline]
 bpf_prog_run include/linux/filter.h:632 [inline]
 bpf_test_run+0x3f4/0x8a0 net/bpf/test_run.c:119
 bpf_prog_test_run_skb+0xb41/0x1420 net/bpf/test_run.c:663
 bpf_prog_test_run+0x32f/0x3a0 kernel/bpf/syscall.c:3346
 __sys_bpf+0x3ac/0x670 kernel/bpf/syscall.c:4647
 __do_sys_bpf kernel/bpf/syscall.c:4733 [inline]
 __se_sys_bpf kernel/bpf/syscall.c:4731 [inline]
 __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4731
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fd9dfa644e9
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:00007ffcf58e3cb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007ffcf58e3e88 RCX: 00007fd9dfa644e9
RDX: 0000000000000028 RSI: 0000000020000080 RDI: 000000000000000a
RBP: 00007fd9dfad7610 R08: 0000000000000000 R09: 00007ffcf58e3e88
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffcf58e3e78 R14: 0000000000000001 R15: 0000000000000001
 </TASK>