VFS: Close: file count is 0 (f_op=shmem_file_operations) ------------[ cut here ]------------ kernel BUG at fs/open.c:1514! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 1 PID: 5218 Comm: syz-executor.3 Not tainted 6.10.0-rc1-next-20240531-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:filp_flush+0x152/0x160 fs/open.c:1512 Code: e9 80 e1 07 80 c1 03 38 c1 7c a6 48 89 ef e8 c5 03 f0 ff eb 9c e8 6e 16 8a ff 48 c7 c7 20 59 d8 8b 48 89 ee e8 6f 84 7d 09 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900046e7eb8 EFLAGS: 00010246 RAX: 0000000000000038 RBX: 0000000000000000 RCX: 7363e98a930e8b00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffffff8bd42dc0 R08: ffffffff8176b129 R09: 1ffff920008dcf74 R10: dffffc0000000000 R11: fffff520008dcf75 R12: ffff88802e293b80 R13: dffffc0000000000 R14: ffff88802f01f840 R15: 0000000000000003 FS: 000055557cd4e480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcf31cd8275 CR3: 000000002d8c6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __do_sys_close fs/open.c:1553 [inline] __se_sys_close fs/open.c:1544 [inline] __x64_sys_close+0x75/0x110 fs/open.c:1544 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: 0033:0x7f8f61a7bdda Code: 48 3d 00 f0 ff ff 77 48 c3 0f 1f 80 00 00 00 00 48 83 ec 18 89 7c 24 0c e8 03 7f 02 00 8b 7c 24 0c 89 c2 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 36 89 d7 89 44 24 0c e8 63 7f 02 00 8b 44 24 RSP: 002b:00007ffdd7457210 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 000000000000000a RCX: 00007f8f61a7bdda RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000009 RBP: ffffffffffffffff R08: 00007f8f61a00000 R09: 0000000000000001 R10: 0000000000000001 R11: 0000000000000293 R12: 00007f8f61bb3fa0 R13: 00007f8f61bb3fac R14: 0000000000000032 R15: 00007f8f61bb59a0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:filp_flush+0x152/0x160 fs/open.c:1512 Code: e9 80 e1 07 80 c1 03 38 c1 7c a6 48 89 ef e8 c5 03 f0 ff eb 9c e8 6e 16 8a ff 48 c7 c7 20 59 d8 8b 48 89 ee e8 6f 84 7d 09 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900046e7eb8 EFLAGS: 00010246 RAX: 0000000000000038 RBX: 0000000000000000 RCX: 7363e98a930e8b00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffffff8bd42dc0 R08: ffffffff8176b129 R09: 1ffff920008dcf74 R10: dffffc0000000000 R11: fffff520008dcf75 R12: ffff88802e293b80 R13: dffffc0000000000 R14: ffff88802f01f840 R15: 0000000000000003 FS: 000055557cd4e480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe31bf95ed8 CR3: 000000002d8c6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400