SysV FS: get root inode failed
------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 0 PID: 7545 at fs/buffer.c:1229 __brelse+0x84/0xd8 fs/buffer.c:1229
Modules linked in:
CPU: 0 UID: 0 PID: 7545 Comm: syz.4.216 Not tainted 6.14.0-rc4-syzkaller-g017f704fbfb1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __brelse+0x84/0xd8 fs/buffer.c:1229
lr : __brelse+0x84/0xd8 fs/buffer.c:1229
sp : ffff8000a28478f0
x29: ffff8000a28478f0 x28: ffff80008bb2b740 x27: 0000000000000000
x26: ffff0000f631b000 x25: ffff0000f631b000 x24: 0000000000000002
x23: ffff0000d5434160 x22: ffff0000d5e6c440 x21: 0000000000000000
x20: 0000000000000000 x19: ffff0000f631b060 x18: 1fffe000366f1886
x17: ffff80008fbbd000 x16: ffff8000804686d8 x15: 0000000000000001
x14: 1fffe0001b21b770 x13: 0000000000000000 x12: 0000000000000000
x11: ffff60001b21b771 x10: 1fffe0001b21b770 x9 : be47bd2b05373800
x8 : be47bd2b05373800 x7 : ffff8000803d4bd8 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff8000803c76ac
x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001
Call trace:
 __brelse+0x84/0xd8 fs/buffer.c:1229 (P)
 brelse include/linux/buffer_head.h:324 [inline]
 sysv_fill_super+0x510/0x5f8 fs/sysv/super.c:417
 mount_bdev+0x1d4/0x2a0 fs/super.c:1693
 sysv_mount+0x44/0x58 fs/sysv/super.c:534
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:662
 vfs_get_tree+0x90/0x28c fs/super.c:1814
 do_new_mount+0x278/0x900 fs/namespace.c:3560
 path_mount+0x590/0xe04 fs/namespace.c:3887
 do_mount fs/namespace.c:3900 [inline]
 __do_sys_mount fs/namespace.c:4111 [inline]
 __se_sys_mount fs/namespace.c:4088 [inline]
 __arm64_sys_mount+0x4f4/0x5d0 fs/namespace.c:4088
 __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+0x54/0x168 arch/arm64/kernel/entry-common.c:744
 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
irq event stamp: 1740
hardirqs last  enabled at (1739): [<ffff8000803d4c78>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1533 [inline]
hardirqs last  enabled at (1739): [<ffff8000803d4c78>] finish_lock_switch+0xbc/0x1e4 kernel/sched/core.c:5132
hardirqs last disabled at (1740): [<ffff80008b7c37d4>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488
softirqs last  enabled at (1692): [<ffff800080311b48>] softirq_handle_end kernel/softirq.c:407 [inline]
softirqs last  enabled at (1692): [<ffff800080311b48>] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589
softirqs last disabled at (1571): [<ffff800080020dbc>] __do_softirq+0x14/0x20 kernel/softirq.c:595
---[ end trace 0000000000000000 ]---
oldfs: cannot read superblock
loop4: detected capacity change from 0 to 32768
XFS: ikeep mount option is deprecated.
XFS (loop4): SB validate failed with error -22.
loop4: detected capacity change from 0 to 2048
EXT4-fs (loop4): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.