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2024-11-01 2f529f9b558ca1c1bd74be7437a84e4711743404

 kernel/fs/file.c
..
..
@@ -429,6 +429,7 @@
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 			if (set & 1) {
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 				struct file * file = xchg(&fdt->fd[i], NULL);
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 				if (file) {
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+					uninstall_inband_fd(i, file, files);
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 					filp_close(file, files);
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 					cond_resched();
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 				}
..
..
@@ -646,6 +647,7 @@
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 		fdt = files_fdtable(files);
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 		BUG_ON(fdt->fd[fd] != NULL);
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 		rcu_assign_pointer(fdt->fd[fd], file);
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+		install_inband_fd(fd, file, files);
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 		spin_unlock(&files->file_lock);
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 		return;
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 	}
..
..
@@ -654,6 +656,7 @@
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 	fdt = rcu_dereference_sched(files->fdt);
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 	BUG_ON(fdt->fd[fd] != NULL);
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 	rcu_assign_pointer(fdt->fd[fd], file);
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+	install_inband_fd(fd, file, files);
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 	rcu_read_unlock_sched();
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 }
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..
..
@@ -682,6 +685,7 @@
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 		goto out_unlock;
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 	rcu_assign_pointer(fdt->fd[fd], NULL);
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 	__put_unused_fd(files, fd);
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+	uninstall_inband_fd(fd, file, files);
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 out_unlock:
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 	spin_unlock(&files->file_lock);
..
..
@@ -799,6 +803,8 @@
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 		goto out_err;
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 	rcu_assign_pointer(fdt->fd[fd], NULL);
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 	__put_unused_fd(files, fd);
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+	uninstall_inband_fd(fd, file, files);
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+	spin_unlock(&files->file_lock);
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 	get_file(file);
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 	*res = file;
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 	return 0;
..
..
@@ -850,6 +856,7 @@
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 				continue;
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 			rcu_assign_pointer(fdt->fd[fd], NULL);
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 			__put_unused_fd(files, fd);
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+			uninstall_inband_fd(fd, file, files);
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 			spin_unlock(&files->file_lock);
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 			filp_close(file, files);
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 			cond_resched();
..
..
@@ -1088,6 +1095,7 @@
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 		__set_close_on_exec(fd, fdt);
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 	else
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 		__clear_close_on_exec(fd, fdt);
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+	replace_inband_fd(fd, file, files);
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 	spin_unlock(&files->file_lock);
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 	if (tofree)