------------[ cut here ]------------ Please remove unsupported %W in format string WARNING: CPU: 0 PID: 9612 at lib/vsprintf.c:2667 format_decode+0xc65/0x1330 lib/vsprintf.c:2667 Modules linked in: CPU: 0 PID: 9612 Comm: syz.1.1038 Not tainted 5.15.186-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:format_decode+0xc65/0x1330 lib/vsprintf.c:2667 Code: e8 80 30 79 fd c6 05 03 45 57 09 01 41 0f b6 44 1d 00 84 c0 0f 85 be 06 00 00 41 0f be 36 48 c7 c7 a0 cf 5c 8a e8 3b 25 a0 05 <0f> 0b e9 fe fc ff ff 48 8b 0c 24 80 e1 07 38 c1 0f 8c d9 f3 ff ff RSP: 0018:ffffc9000300f968 EFLAGS: 00010246 RAX: 84ace620027a5f00 RBX: dffffc0000000000 RCX: 0000000000080000 RDX: ffffc9000d172000 RSI: 000000000002e502 RDI: 000000000002e503 RBP: ffff0000ffffff00 R08: dffffc0000000000 R09: ffffed1017204f24 R10: ffffed1017204f24 R11: 1ffff11017204f23 R12: ffff0a00ffffff00 R13: 1ffff92000601f71 R14: ffffc9000300fb8b R15: 0000000000000032 FS: 00007f6dc146b6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31613ff8 CR3: 0000000069414000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bstr_printf+0xc4/0xef0 lib/vsprintf.c:3238 ____bpf_trace_printk kernel/trace/bpf_trace.c:381 [inline] bpf_trace_printk+0x10a/0x320 kernel/trace/bpf_trace.c:366 bpf_prog_a343b6dd85f2a454+0x38/0xc74 bpf_dispatcher_nop_func include/linux/bpf.h:790 [inline] __bpf_prog_run include/linux/filter.h:628 [inline] bpf_prog_run include/linux/filter.h:635 [inline] bpf_prog_run_pin_on_cpu include/linux/filter.h:652 [inline] bpf_flow_dissect+0x12b/0x3f0 net/core/flow_dissector.c:896 bpf_prog_test_run_flow_dissector+0x432/0x5e0 net/bpf/test_run.c:907 bpf_prog_test_run+0x31e/0x390 kernel/bpf/syscall.c:3368 __sys_bpf+0x535/0x670 kernel/bpf/syscall.c:4669 __do_sys_bpf kernel/bpf/syscall.c:4755 [inline] __se_sys_bpf kernel/bpf/syscall.c:4753 [inline] __x64_sys_bpf+0x78/0x90 kernel/bpf/syscall.c:4753 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f6dc3603929 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:00007f6dc146b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007f6dc382afa0 RCX: 00007f6dc3603929 RDX: 0000000000000050 RSI: 0000200000000180 RDI: 000000000000000a RBP: 00007f6dc3685b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f6dc382afa0 R15: 00007fff24af5948