------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 1 PID: 8530 at fs/buffer.c:1235 __brelse+0x84/0xd8 fs/buffer.c:1235
Modules linked in:
CPU: 1 PID: 8530 Comm: syz-executor.4 Not tainted 6.9.0-rc3-syzkaller-gb5d2afe8745b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __brelse+0x84/0xd8 fs/buffer.c:1235
lr : __brelse+0x84/0xd8 fs/buffer.c:1235
sp : ffff800097ff78f0
x29: ffff800097ff78f0 x28: ffff80008b280340 x27: 0000000000000000
x26: ffff0000ef8a1570 x25: ffff0000ef8a1570 x24: 0000000000000002
x23: ffff0000cbce4160 x22: ffff0000ecb0ac40 x21: 0000000000000000
x20: 0000000000000000 x19: ffff0000ef8a15d0 x18: 1fffe000367be196
x17: ffff80008ee7d000 x16: ffff800080333fec x15: 0000000000000001
x14: 1fffe000367c0d90 x13: 0000000000000000 x12: 0000000000000003
x11: 0000000000000001 x10: 0000000000000003 x9 : f5edadb21018e400
x8 : f5edadb21018e400 x7 : ffff8000802aabc8 x6 : 0000000000000000
x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : ffff80008afdfb40 x0 : ffff80012501f000
Call trace:
 __brelse+0x84/0xd8 fs/buffer.c:1235
 brelse include/linux/buffer_head.h:309 [inline]
 sysv_fill_super+0x510/0x5f8 fs/sysv/super.c:417
 mount_bdev+0x1d4/0x2a0 fs/super.c:1658
 sysv_mount+0x44/0x58 fs/sysv/super.c:534
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:662
 vfs_get_tree+0x90/0x288 fs/super.c:1779
 do_new_mount+0x278/0x900 fs/namespace.c:3352
 path_mount+0x590/0xe04 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]
 __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3875
 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152
 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
irq event stamp: 1342
hardirqs last  enabled at (1341): [<ffff8000802aac68>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1397 [inline]
hardirqs last  enabled at (1341): [<ffff8000802aac68>] finish_lock_switch+0xbc/0x1e4 kernel/sched/core.c:5163
hardirqs last disabled at (1342): [<ffff80008ae6c78c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:470
softirqs last  enabled at (1334): [<ffff8000800218e4>] softirq_handle_end kernel/softirq.c:400 [inline]
softirqs last  enabled at (1334): [<ffff8000800218e4>] __do_softirq+0xb10/0xd2c kernel/softirq.c:583
softirqs last disabled at (1235): [<ffff80008002ad34>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81
---[ end trace 0000000000000000 ]---
oldfs: cannot read superblock