loop1: detected capacity change from 0 to 32768 ------------[ cut here ]------------ precision 65535 too large WARNING: CPU: 1 PID: 5267 at lib/vsprintf.c:2721 set_precision+0xc0/0x160 lib/vsprintf.c:2721 Modules linked in: CPU: 1 PID: 5267 Comm: syz-executor.1 Not tainted 6.9.0-syzkaller-08654-g0cc6f45cecb4 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:set_precision+0xc0/0x160 lib/vsprintf.c:2721 Code: ff 44 89 e6 e8 21 90 bf f6 45 84 e4 75 20 e8 97 95 bf f6 c6 05 e7 c9 fc 04 01 90 48 c7 c7 e0 ca 7f 8c 89 de e8 c1 13 82 f6 90 <0f> 0b 90 90 e8 77 95 bf f6 31 c0 85 db 48 89 ea 0f 48 d8 b8 ff 7f RSP: 0018:ffffc90002bb6bb0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 000000000000ffff RCX: ffffc900079c1000 RDX: 0000000000040000 RSI: ffffffff81510476 RDI: 0000000000000001 RBP: ffffc90002bb6c28 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffffc90002bb6c2f R14: ffffc90002bb6d00 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff88802c100000(0063) knlGS:00000000f5f32b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f5f33000 CR3: 000000005b774000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> vsnprintf+0xb0d/0x1870 lib/vsprintf.c:2797 bch2_prt_printf+0x19f/0x3d0 fs/bcachefs/printbuf.c:75 bch2_xattr_to_text+0x28b/0x760 fs/bcachefs/xattr.c:121 bch2_val_to_text fs/bcachefs/bkey_methods.c:300 [inline] bch2_bkey_val_to_text+0x1c9/0x210 fs/bcachefs/bkey_methods.c:310 journal_entry_btree_keys_to_text+0x139/0x580 fs/bcachefs/journal_io.c:410 bch2_journal_entry_to_text+0x386/0x4f0 fs/bcachefs/journal_io.c:835 bch2_sb_clean_to_text+0x109/0x210 fs/bcachefs/sb-clean.c:316 __bch2_sb_field_to_text+0x123/0x1e0 fs/bcachefs/super-io.c:1245 bch2_sb_field_validate+0x248/0x2d0 fs/bcachefs/super-io.c:1228 bch2_sb_validate.isra.0+0x6d8/0xce0 fs/bcachefs/super-io.c:468 __bch2_read_super+0x93c/0x12a0 fs/bcachefs/super-io.c:822 bch2_fs_open+0x3e5/0x10f0 fs/bcachefs/super.c:2052 bch2_mount+0xd41/0x1090 fs/bcachefs/fs.c:1906 legacy_get_tree+0x109/0x220 fs/fs_context.c:662 vfs_get_tree+0x8f/0x380 fs/super.c:1779 do_new_mount fs/namespace.c:3352 [inline] path_mount+0x6e1/0x1f10 fs/namespace.c:3679 do_mount fs/namespace.c:3692 [inline] __do_sys_mount fs/namespace.c:3898 [inline] __se_sys_mount fs/namespace.c:3875 [inline] __ia32_sys_mount+0x295/0x320 fs/namespace.c:3875 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x75/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7340579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f5f32400 EFLAGS: 00000292 ORIG_RAX: 0000000000000015 RAX: ffffffffffffffda RBX: 00000000f5f32460 RCX: 0000000020000080 RDX: 0000000020011a00 RSI: 0000000001200014 RDI: 00000000f5f324a0 RBP: 00000000f5f32460 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi