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: 5089 Comm: syz-executor317 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:ffffc900033bfc80 EFLAGS: 00010246 RAX: 0000000000000038 RBX: 0000000000000000 RCX: fe0d96255f7cdc00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffffff8bd42dc0 R08: ffffffff8176b129 R09: 1ffff92000677f2c R10: dffffc0000000000 R11: fffff52000677f2d R12: ffff8880784d9680 R13: dffffc0000000000 R14: ffff88807aa761c0 R15: 0000000000000009 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000003f3be538 CR3: 000000007f062000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: filp_close+0x1e/0x40 fs/open.c:1532 close_files fs/file.c:437 [inline] put_files_struct+0x1b6/0x360 fs/file.c:452 do_exit+0xa08/0x28e0 kernel/exit.c:869 do_group_exit+0x207/0x2c0 kernel/exit.c:1023 __do_sys_exit_group kernel/exit.c:1034 [inline] __se_sys_exit_group kernel/exit.c:1032 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1032 x64_sys_call+0x26a8/0x26b0 arch/x86/include/generated/asm/syscalls_64.h:232 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: 0033:0x7fc324e0fd09 Code: Unable to access opcode bytes at 0x7fc324e0fcdf. RSP: 002b:00007fffe9a711b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc324e0fd09 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 00007fc324e8b2d0 R08: ffffffffffffffb8 R09: 0000555580c204c0 R10: 0000555580c204c0 R11: 0000000000000246 R12: 00007fc324e8b2d0 R13: 0000000000000000 R14: 00007fc324e8c040 R15: 00007fc324dddf00 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:ffffc900033bfc80 EFLAGS: 00010246 RAX: 0000000000000038 RBX: 0000000000000000 RCX: fe0d96255f7cdc00 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffffff8bd42dc0 R08: ffffffff8176b129 R09: 1ffff92000677f2c R10: dffffc0000000000 R11: fffff52000677f2d R12: ffff8880784d9680 R13: dffffc0000000000 R14: ffff88807aa761c0 R15: 0000000000000009 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000003f3be538 CR3: 000000007f062000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400