------------[ cut here ]------------
VFS: brelse: Trying to free free buffer
WARNING: CPU: 1 PID: 4574 at fs/buffer.c:1145 __brelse fs/buffer.c:1145 [inline]
WARNING: CPU: 1 PID: 4574 at fs/buffer.c:1145 brelse+0x78/0xa0 include/linux/buffer_head.h:327
Modules linked in:
CPU: 1 PID: 4574 Comm: syz-executor.0 Not tainted 6.0.0-syzkaller-09423-g493ffd6605b2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:__brelse fs/buffer.c:1145 [inline]
RIP: 0010:brelse+0x78/0xa0 include/linux/buffer_head.h:327
Code: df be 04 00 00 00 e8 47 17 e1 ff f0 ff 0b eb 1c e8 dd aa 8d ff eb 15 e8 d6 aa 8d ff 48 c7 c7 60 b7 9d 8a 31 c0 e8 38 0f 56 ff <0f> 0b 5b 5d c3 89 d9 80 e1 07 80 c1 03 38 c1 7c af 48 89 df e8 4f
RSP: 0018:ffffc9000d047728 EFLAGS: 00010046
RAX: 21d0906efba71000 RBX: ffff888073e02a58 RCX: 0000000000040000
RDX: ffffc90003ea1000 RSI: 000000000000445e RDI: 000000000000445f
RBP: 0000000000000000 R08: ffffffff816aa79d R09: ffffed1017364f13
R10: ffffed1017364f13 R11: 1ffff11017364f12 R12: ffff8880b9b35d30
R13: 0000000000000002 R14: ffff8880b9b35cf8 R15: dffffc0000000000
FS:  00007f89b4613700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f89b4614000 CR3: 000000007ef5d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __invalidate_bh_lrus+0x1cc/0x3c0 fs/buffer.c:1391
 invalidate_bh_lru+0x66/0xb0 fs/buffer.c:1404
 smp_call_function_many_cond+0xe68/0x1670 kernel/smp.c:978
 on_each_cpu_cond_mask+0x3b/0x80 kernel/smp.c:1153
 kill_bdev block/bdev.c:75 [inline]
 set_blocksize+0x2e0/0x360 block/bdev.c:152
 sb_set_blocksize block/bdev.c:161 [inline]
 sb_min_blocksize+0xc0/0x180 block/bdev.c:177
 ext4_load_super fs/ext4/super.c:4936 [inline]
 __ext4_fill_super fs/ext4/super.c:5061 [inline]
 ext4_fill_super+0x80d/0x8810 fs/ext4/super.c:5648
 get_tree_bdev+0x400/0x620 fs/super.c:1323
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x289/0xad0 fs/namespace.c:3040
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f89b348cada
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f89b4612f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f89b348cada
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f89b4612fe0
RBP: 00007f89b4613020 R08: 00007f89b4613020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f89b4612fe0 R15: 0000000020011560
 </TASK>