------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 0 PID: 9516 at fs/buffer.c:1145 __brelse+0x84/0xd8 fs/buffer.c:1145
Modules linked in:
CPU: 0 PID: 9516 Comm: syz-executor.2 Not tainted 6.1.87-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--)
pc : __brelse+0x84/0xd8 fs/buffer.c:1145
lr : __brelse+0x84/0xd8 fs/buffer.c:1145
sp : ffff80001df97940
x29: ffff80001df97940 x28: ffff800012542380 x27: 0000000000000000
x26: ffff0000df4a1740 x25: ffff0000df4a1740 x24: 0000000000000002
x23: ffff0000e91fc160 x22: ffff0000c4ccac40 x21: 0000000000000000
x20: 0000000000000000 x19: ffff0000df4a17a0 x18: 1fffe0003686af76
x17: ffff80001584d000 x16: ffff800008305ec4 x15: ffff0001b4357bbc
x14: 1ffff00002b0a0b0 x13: dfff800000000000 x12: 0000000000000003
x11: 0000000000ff0100 x10: 0000000000000003 x9 : e0b1e8eef48f9300
x8 : e0b1e8eef48f9300 x7 : ffff80000827c8d4 x6 : 0000000000000000
x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000
x2 : 0000000000000006 x1 : ffff8000122bc6e0 x0 : ffff80019ebb5000
Call trace:
 __brelse+0x84/0xd8 fs/buffer.c:1145
 brelse include/linux/buffer_head.h:326 [inline]
 sysv_fill_super+0x510/0x5f8 fs/sysv/super.c:417
 mount_bdev+0x274/0x370 fs/super.c:1432
 sysv_mount+0x44/0x58 fs/sysv/super.c:534
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:632
 vfs_get_tree+0x90/0x274 fs/super.c:1562
 do_new_mount+0x278/0x8fc fs/namespace.c:3051
 path_mount+0x590/0xe5c fs/namespace.c:3381
 do_mount fs/namespace.c:3394 [inline]
 __do_sys_mount fs/namespace.c:3602 [inline]
 __se_sys_mount fs/namespace.c:3579 [inline]
 __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3579
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
irq event stamp: 1402
hardirqs last  enabled at (1401): [<ffff80000827c974>] raw_spin_rq_unlock_irq kernel/sched/sched.h:1366 [inline]
hardirqs last  enabled at (1401): [<ffff80000827c974>] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5004
hardirqs last disabled at (1402): [<ffff800012158694>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405
softirqs last  enabled at (1368): [<ffff800008020d7c>] softirq_handle_end kernel/softirq.c:414 [inline]
softirqs last  enabled at (1368): [<ffff800008020d7c>] __do_softirq+0xc1c/0xe38 kernel/softirq.c:600
softirqs last disabled at (1361): [<ffff80000802a99c>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:80
---[ end trace 0000000000000000 ]---
oldfs: cannot read superblock