------------[ cut here ]------------ WARNING: CPU: 1 PID: 11063 at fs/buffer.c:1173 mark_buffer_dirty+0x2c6/0x500 fs/buffer.c:1173 Modules linked in: CPU: 1 UID: 0 PID: 11063 Comm: syz-executor Not tainted 6.12.0-next-20241118-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:mark_buffer_dirty+0x2c6/0x500 fs/buffer.c:1173 Code: 74 08 48 89 df e8 8a 15 db ff 48 8b 3b be 20 00 00 00 5b 41 5e 41 5f 5d e9 b7 d7 fb ff e8 f2 21 70 ff eb 91 e8 eb 21 70 ff 90 <0f> 0b 90 e9 80 fd ff ff e8 dd 21 70 ff 90 0f 0b 90 e9 a7 fd ff ff RSP: 0018:ffffc900030dfcc8 EFLAGS: 00010293 RAX: ffffffff822f56c5 RBX: 1ffff1100cdf0c01 RCX: ffff888030a8bc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff822f5441 R09: 1ffff1100996695c R10: dffffc0000000000 R11: ffffed100996695d R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff88804cb34ae0 R15: ffff888066f86038 FS: 0000555579055500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f105ff8 CR3: 000000006d5fe000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sysv_put_super+0x93/0x180 fs/sysv/inode.c:76 generic_shutdown_super+0x139/0x2d0 fs/super.c:642 kill_block_super+0x44/0x90 fs/super.c:1710 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373 task_work_run+0x24f/0x310 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff52d37fa87 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffe16045f88 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007ff52d37fa87 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe16046040 RBP: 00007ffe16046040 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe160470c0 R13: 00007ff52d3f15fc R14: 0000000000066ba1 R15: 00007ffe16047100