------------[ cut here ]------------ Please remove unsupported % in format string WARNING: CPU: 0 PID: 5322 at lib/vsprintf.c:2693 format_decode+0x8a2/0xca0 lib/vsprintf.c:2693 Modules linked in: CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted 6.13.0-syzkaller-07267-g405057718a1f #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+0x8a2/0xca0 lib/vsprintf.c:2693 Code: ff 14 04 01 90 4c 89 f8 48 c1 e8 03 42 0f b6 04 20 84 c0 0f 85 f0 03 00 00 41 0f b6 37 48 c7 c7 00 50 33 8d e8 cf 74 8f f5 90 <0f> 0b 90 90 e9 a1 fc ff ff e8 00 c5 ce f5 4d 89 ee 4c 8b 6c 24 08 RSP: 0018:ffffc9000d3cf640 EFLAGS: 00010246 RAX: a7ad2a1f07015100 RBX: ffffffff8d334b01 RCX: 0000000000100000 RDX: ffffc9000e812000 RSI: 0000000000000a04 RDI: 0000000000000a05 RBP: ffffffff8d334b00 R08: ffffffff81802a82 R09: fffffbfff1cfa5a4 R10: dffffc0000000000 R11: fffffbfff1cfa5a4 R12: dffffc0000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffffc9000d3cf8ec FS: 00007f3d4f9506c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3d4ed9f630 CR3: 00000000531be000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bstr_printf+0x165/0xee0 lib/vsprintf.c:3218 ____bpf_trace_printk kernel/trace/bpf_trace.c:378 [inline] bpf_trace_printk+0x1a1/0x230 kernel/trace/bpf_trace.c:363 bpf_prog_12183cdb1cd51dab+0x37/0x3b bpf_dispatcher_nop_func include/linux/bpf.h:1290 [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:434 bpf_prog_test_run_skb+0xcaa/0x1830 net/bpf/test_run.c:1096 bpf_prog_test_run+0x2e4/0x360 kernel/bpf/syscall.c:4406 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5812 __do_sys_bpf kernel/bpf/syscall.c:5901 [inline] __se_sys_bpf kernel/bpf/syscall.c:5899 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5899 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: 0033:0x7f3d4eb8cd29 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:00007f3d4f950038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f3d4eda5fa0 RCX: 00007f3d4eb8cd29 RDX: 0000000000000028 RSI: 0000000020000080 RDI: 000000000000000a RBP: 00007f3d4ec0e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f3d4eda5fa0 R15: 00007fffa5180d98