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Please remove unsupported %S in format string
WARNING: CPU: 0 PID: 6284 at lib/vsprintf.c:2724 format_decode+0x965/0xe30
Modules linked in:
CPU: 0 UID: 0 PID: 6284 Comm: syz.1.109 Not tainted 6.16.0-rc5-syzkaller-00159-g47c84997c686-dirty #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:format_decode+0x965/0xe30
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 c0 dd b9 8c e8 cc a6 18 f6 90 <0f> 0b 90 90 e9 6b fc ff ff e8 ed c6 54 f6 48 89 dd e9 55 fa ff ff
RSP: 0018:ffffc90003a778f0 EFLAGS: 00010246
RAX: 6340ae36c1a34000 RBX: 0000000000000000 RCX: ffff88812195b980
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: ffffc90003a77aeb R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff1bfaa64 R12: ffffc90003a77aeb
R13: ffffffff8cb9da0c R14: 0000000000000406 R15: 0000000000000400
FS:  00007fd9430b86c0(0000) GS:ffff8880b861b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e95ffff CR3: 0000000107c86000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 bstr_printf+0xd0/0xb70
 bpf_trace_printk+0x10e/0x190
 bpf_prog_a343b6dd85f2a454+0x41/0x4c
 bpf_flow_dissect+0x135/0x400
 bpf_prog_test_run_flow_dissector+0x37c/0x5c0
 bpf_prog_test_run+0x2c7/0x340
 __sys_bpf+0x4a4/0x860
 __x64_sys_bpf+0x7c/0x90
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd94218e929
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:00007fd9430b8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fd9423b5fa0 RCX: 00007fd94218e929
RDX: 0000000000000050 RSI: 0000200000000180 RDI: 000000000000000a
RBP: 00007fd942210b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd9423b5fa0 R15: 00007fff752b46c8
 </TASK>
