Bad inode number on dev loop1: 2 is out of range SysV FS: get root inode failed ------------[ cut here ]------------ VFS: brelse: Trying to free free buffer WARNING: CPU: 1 PID: 5094 at fs/buffer.c:1148 __brelse+0x8c/0xec fs/buffer.c:1148 Modules linked in: CPU: 1 PID: 5094 Comm: syz.1.224 Not tainted 5.15.178-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __brelse+0x8c/0xec fs/buffer.c:1148 lr : __brelse+0x8c/0xec fs/buffer.c:1148 sp : ffff8000205a7900 x29: ffff8000205a7900 x28: ffff800011f12e00 x27: 0000000000000000 x26: ffff0000dd86d1d0 x25: ffff0000dd86d1d0 x24: 0000000000000002 x23: ffff0000d438e160 x22: ffff0000e7ac5440 x21: 0000000000000000 x20: 0000000000000000 x19: ffff0000dd86d230 x18: 0000000000000001 x17: 0000000000000002 x16: ffff800011b4e3fc x15: 00000000ffffffff x14: ffff0000d4049b40 x13: 0000000000000001 x12: 0000000000080000 x11: 000000000001db45 x10: ffff800021c49000 x9 : 844acf98da5d3a00 x8 : 844acf98da5d3a00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff8000205a7078 x4 : ffff800014c50660 x3 : ffff8000085568c0 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000027 Call trace: __brelse+0x8c/0xec fs/buffer.c:1148 brelse include/linux/buffer_head.h:325 [inline] sysv_fill_super+0x510/0x5f8 fs/sysv/super.c:415 mount_bdev+0x274/0x370 fs/super.c:1400 sysv_mount+0x44/0x58 fs/sysv/super.c:534 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611 vfs_get_tree+0x90/0x274 fs/super.c:1530 do_new_mount+0x278/0x8fc fs/namespace.c:3012 path_mount+0x594/0x101c fs/namespace.c:3342 do_mount fs/namespace.c:3355 [inline] __do_sys_mount fs/namespace.c:3563 [inline] __se_sys_mount fs/namespace.c:3540 [inline] __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3540 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 1334 hardirqs last enabled at (1333): [] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257 hardirqs last disabled at (1334): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (1288): [] softirq_handle_end kernel/softirq.c:401 [inline] softirqs last enabled at (1288): [] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586 softirqs last disabled at (1181): [] __do_softirq kernel/softirq.c:592 [inline] softirqs last disabled at (1181): [] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] softirqs last disabled at (1181): [] invoke_softirq kernel/softirq.c:439 [inline] softirqs last disabled at (1181): [] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641 ---[ end trace 2f7f3223cbba0f16 ]--- oldfs: cannot read superblock