WARNING: CPU: 1 PID: 6435 at fs/buffer.c:1229 __brelse+0x71/0xa0 fs/buffer.c:1229
Modules linked in:
CPU: 1 UID: 0 PID: 6435 Comm: syz.0.167 Not tainted 6.12.0-rc6-next-20241105-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__brelse+0x71/0xa0 fs/buffer.c:1229
Code: e8 74 ae 70 ff 48 89 df be 04 00 00 00 e8 57 12 db ff f0 ff 0b eb 17 e8 5d ae 70 ff 90 48 c7 c7 a0 b8 19 8c e8 50 54 31 ff 90 <0f> 0b 90 90 5b 5d c3 cc cc cc cc 89 d9 80 e1 07 80 c1 03 38 c1 7c
RSP: 0018:ffffc900036bfb60 EFLAGS: 00010246
RAX: ab9c1c5feade9a00 RBX: ffff888077fc5df8 RCX: 0000000000040000
RDX: ffffc90004719000 RSI: 0000000000029c06 RDI: 0000000000029c07
RBP: 0000000000000000 R08: ffffffff81568052 R09: fffffbfff1cfa884
R10: dffffc0000000000 R11: fffffbfff1cfa884 R12: ffff888077fc5d98
R13: ffff888024ff0000 R14: 0000000000000000 R15: ffff888012b70400
FS:  00007f1262bfa6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020404030 CR3: 000000007c112000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 brelse include/linux/buffer_head.h:324 [inline]
 sysv_fill_super+0x622/0x710 fs/sysv/super.c:417
 mount_bdev+0x20a/0x2d0 fs/super.c:1693
 legacy_get_tree+0xee/0x190 fs/fs_context.c:662
 vfs_get_tree+0x90/0x2b0 fs/super.c:1814
 do_new_mount+0x2be/0xb40 fs/namespace.c:3507
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4057 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4034
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1261d7feba
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f1262bf9e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f1262bf9ef0 RCX: 00007f1261d7feba
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f1262bf9eb0
RBP: 0000000020000000 R08: 00007f1262bf9ef0 R09: 0000000002000412
R10: 0000000002000412 R11: 0000000000000246 R12: 0000000020000100
R13: 00007f1262bf9eb0 R14: 0000000000009eb5 R15: 0000000020000040
 </TASK>