------------[ cut here ]------------ WARNING: CPU: 1 PID: 9944 at fs/ext4/ext4_jbd2.c:73 ext4_journal_check_start+0x1de/0x2b0 fs/ext4/ext4_jbd2.c:73 Modules linked in: CPU: 1 UID: 0 PID: 9944 Comm: syz.9.992 Not tainted 6.14.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 RIP: 0010:ext4_journal_check_start+0x1de/0x2b0 fs/ext4/ext4_jbd2.c:73 Code: 89 d8 5b 5d 41 5c 41 5d e9 5a d4 a6 fe e8 ea 69 50 ff bb fb ff ff ff 89 d8 5b 5d 41 5c 41 5d e9 43 d4 a6 fe e8 d3 69 50 ff 90 <0f> 0b 90 bb e2 ff ff ff eb c7 e8 c3 69 50 ff 90 0f 0b 90 e9 2e ff RSP: 0018:ffffc90003477680 EFLAGS: 00010287 RAX: 0000000000001148 RBX: ffff88807a476000 RCX: ffffc9000f624000 RDX: 0000000000080000 RSI: ffffffff82696ccd RDI: 0000000000000007 RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000001 R11: 00000000000004fb R12: ffff88807a476638 R13: ffff88804bc9c000 R14: 000000000003da8c R15: ffffffff826ca016 FS: 00007efd4159c6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff311d3038 CR3: 000000007f574000 CR4: 0000000000350ef0 Call Trace: __ext4_journal_start_sb+0xbe/0x660 fs/ext4/ext4_jbd2.c:105 ext4_sample_last_mounted fs/ext4/file.c:859 [inline] ext4_file_open+0x636/0xe00 fs/ext4/file.c:887 do_dentry_open+0x738/0x1c40 fs/open.c:956 vfs_open+0x82/0x3f0 fs/open.c:1086 do_open fs/namei.c:3830 [inline] path_openat+0x1e88/0x2d80 fs/namei.c:3989 do_filp_open+0x20c/0x470 fs/namei.c:4016 do_open_execat+0xfa/0x450 fs/exec.c:895 open_exec+0x45/0x80 fs/exec.c:932 bm_register_write+0xe57/0x18c0 fs/binfmt_misc.c:833 vfs_write+0x24f/0x1150 fs/read_write.c:677 ksys_write+0x12b/0x250 fs/read_write.c:731 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: 0033:0x7efd4078cde9 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:00007efd4159c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007efd409a6080 RCX: 00007efd4078cde9 RDX: 000000000000002a RSI: 0000400000000000 RDI: 0000000000000004 RBP: 00007efd4080e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007efd409a6080 R15: 00007ffeb3207118