------------[ cut here ]------------ WARNING: CPU: 0 PID: 7130 at fs/ext4/ext4_jbd2.c:75 ext4_journal_check_start fs/ext4/ext4_jbd2.c:75 [inline] WARNING: CPU: 0 PID: 7130 at fs/ext4/ext4_jbd2.c:75 __ext4_journal_start_sb+0x460/0x88c fs/ext4/ext4_jbd2.c:107 Modules linked in: CPU: 0 UID: 0 PID: 7130 Comm: syz-executor.0 Not tainted 6.15.0-rc4-syzkaller-00028-ge0f4c8dd9d2d #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ext4_journal_check_start fs/ext4/ext4_jbd2.c:75 [inline] pc : __ext4_journal_start_sb+0x460/0x88c fs/ext4/ext4_jbd2.c:107 lr : ext4_journal_check_start fs/ext4/ext4_jbd2.c:75 [inline] lr : __ext4_journal_start_sb+0x460/0x88c fs/ext4/ext4_jbd2.c:107 sp : ffff8000a1b47510 x29: ffff8000a1b47520 x28: 1fffe00018dd84c7 x27: dfff800000000000 x26: ffff0000c6ec2050 x25: ffff0000c6ec2638 x24: ffff0000c6ec2000 x23: 0000000000000001 x22: 0000000000000000 x21: 0000000000000000 x20: 0000000000000000 x19: 0000000070818001 x18: 00000000ffffffff x17: ffff800092f13000 x16: ffff800080512f80 x15: 0000000000000001 x14: 1ffff00011e9da18 x13: 0000000000000000 x12: 0000000000000000 x11: ffff800092d13bc0 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000d7b0db80 x7 : ffff8000805ac4f0 x6 : 0000000000000008 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: ext4_journal_check_start fs/ext4/ext4_jbd2.c:75 [inline] (P) __ext4_journal_start_sb+0x460/0x88c fs/ext4/ext4_jbd2.c:107 (P) ext4_sample_last_mounted fs/ext4/file.c:863 [inline] ext4_file_open+0x578/0x818 fs/ext4/file.c:895 do_dentry_open+0xb7c/0x1544 fs/open.c:956 vfs_open+0x44/0x2d4 fs/open.c:1086 do_open fs/namei.c:3880 [inline] path_openat+0x2424/0x2c40 fs/namei.c:4039 do_filp_open+0x18c/0x36c fs/namei.c:4066 do_sys_openat2+0x11c/0x1b4 fs/open.c:1429 do_sys_open fs/open.c:1444 [inline] __do_sys_openat fs/open.c:1460 [inline] __se_sys_openat fs/open.c:1455 [inline] __arm64_sys_openat+0x120/0x158 fs/open.c:1455 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 192 hardirqs last enabled at (191): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (191): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (192): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (48): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (46): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---