Please remove unsupported % in format string WARNING: CPU: 0 PID: 5331 at lib/vsprintf.c:2659 format_decode+0xa07/0xba0 lib/vsprintf.c:2659 Modules linked in: CPU: 0 UID: 0 PID: 5331 Comm: syz-executor259 Not tainted 6.12.0-rc1-syzkaller-00031-ge32cde8d2bd7 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:format_decode+0xa07/0xba0 lib/vsprintf.c:2659 Code: f6 41 c6 44 24 05 08 e9 c4 fa ff ff e8 e2 83 7a f6 c6 05 ed f6 34 05 01 90 48 c7 c7 c0 b7 cc 8c 40 0f b6 f5 e8 6a 6c 3b f6 90 <0f> 0b 90 90 e9 17 fc ff ff 48 8b 3c 24 e8 07 f8 db f6 e9 0f f7 ff RSP: 0018:ffffc900049f76e0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffffc900049f7954 RCX: ffffffff814e7329 RDX: ffff88802ef9c880 RSI: ffffffff814e7336 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffc900049f77e0 R13: 0000000000000000 R14: 0000000000000000 R15: 00000000ffffffd0 FS: 00005555883e8380(0000) GS:ffff88806a600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 000000001f9d0000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bstr_printf+0x137/0x1090 lib/vsprintf.c:3232 ____bpf_trace_printk kernel/trace/bpf_trace.c:389 [inline] bpf_trace_printk+0x10b/0x190 kernel/trace/bpf_trace.c:374 bpf_prog_12183cdb1cd51dab+0x37/0x3b bpf_dispatcher_nop_func include/linux/bpf.h:1257 [inline] __bpf_prog_run include/linux/filter.h:701 [inline] bpf_prog_run include/linux/filter.h:708 [inline] bpf_test_run+0x49d/0xa90 net/bpf/test_run.c:433 bpf_prog_test_run_skb+0xb6e/0x20f0 net/bpf/test_run.c:1094 bpf_prog_test_run kernel/bpf/syscall.c:4247 [inline] __sys_bpf+0xfc6/0x49a0 kernel/bpf/syscall.c:5652 __do_sys_bpf kernel/bpf/syscall.c:5741 [inline] __se_sys_bpf kernel/bpf/syscall.c:5739 [inline] __x64_sys_bpf+0x78/0xc0 kernel/bpf/syscall.c:5739 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f80dd51a4a9 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:00007fffdbb326b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007fffdbb32888 RCX: 00007f80dd51a4a9 RDX: 0000000000000028 RSI: 0000000020000080 RDI: 000000000000000a RBP: 00007f80dd58d610 R08: 0000000000000000 R09: 00007fffdbb32888 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fffdbb32878 R14: 0000000000000001 R15: 0000000000000001